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- Bug fixes for general core bugs in 4.2.x will end 22 April 2024 (12 months).
- Bug fixes for security issues in 4.2.x will end 7 October 2024 (18 months).
- PHP version: minimum PHP 8.0.0 Note: minimum PHP version has increased since Moodle 4.1. PHP 8.1.x is supported too.
/lib/adodb/drivers/ -> adodb-oci8.inc.php (source)
Differences Between: [Versions 310 and 402] [Versions 311 and 402] [Versions 39 and 402] [Versions 400 and 402] [Versions 401 and 402] [Versions 402 and 403]
1 <?php 2 /** 3 * FileDescription 4 * 5 * This file is part of ADOdb, a Database Abstraction Layer library for PHP. 6 * 7 * @package ADOdb 8 * @link https://adodb.org Project's web site and documentation 9 * @link https://github.com/ADOdb/ADOdb Source code and issue tracker 10 * 11 * The ADOdb Library is dual-licensed, released under both the BSD 3-Clause 12 * and the GNU Lesser General Public Licence (LGPL) v2.1 or, at your option, 13 * any later version. This means you can use it in proprietary products. 14 * See the LICENSE.md file distributed with this source code for details. 15 * @license BSD-3-Clause 16 * @license LGPL-2.1-or-later 17 * 18 * @copyright 2000-2013 John Lim 19 * @copyright 2014 Damien Regad, Mark Newnham and the ADOdb community 20 * @author John Lim 21 * @author George Fourlanos <fou@infomap.gr> 22 */ 23 24 // security - hide paths 25 if (!defined('ADODB_DIR')) die(); 26 27 /* 28 NLS_Date_Format 29 Allows you to use a date format other than the Oracle Lite default. When a literal 30 character string appears where a date value is expected, the Oracle Lite database 31 tests the string to see if it matches the formats of Oracle, SQL-92, or the value 32 specified for this parameter in the POLITE.INI file. Setting this parameter also 33 defines the default format used in the TO_CHAR or TO_DATE functions when no 34 other format string is supplied. 35 36 For Oracle the default is dd-mon-yy or dd-mon-yyyy, and for SQL-92 the default is 37 yy-mm-dd or yyyy-mm-dd. 38 39 Using 'RR' in the format forces two-digit years less than or equal to 49 to be 40 interpreted as years in the 21st century (2000-2049), and years over 50 as years in 41 the 20th century (1950-1999). Setting the RR format as the default for all two-digit 42 year entries allows you to become year-2000 compliant. For example: 43 NLS_DATE_FORMAT='RR-MM-DD' 44 45 You can also modify the date format using the ALTER SESSION command. 46 */ 47 48 # define the LOB descriptor type for the given type 49 # returns false if no LOB descriptor 50 function oci_lob_desc($type) { 51 switch ($type) { 52 case OCI_B_BFILE: return OCI_D_FILE; 53 case OCI_B_CFILEE: return OCI_D_FILE; 54 case OCI_B_CLOB: return OCI_D_LOB; 55 case OCI_B_BLOB: return OCI_D_LOB; 56 case OCI_B_ROWID: return OCI_D_ROWID; 57 } 58 return false; 59 } 60 61 class ADODB_oci8 extends ADOConnection { 62 var $databaseType = 'oci8'; 63 var $dataProvider = 'oci8'; 64 var $replaceQuote = "''"; // string to use to replace quotes 65 var $concat_operator='||'; 66 var $sysDate = "TRUNC(SYSDATE)"; 67 var $sysTimeStamp = 'SYSDATE'; // requires oracle 9 or later, otherwise use SYSDATE 68 var $metaDatabasesSQL = "SELECT USERNAME FROM ALL_USERS WHERE USERNAME NOT IN ('SYS','SYSTEM','DBSNMP','OUTLN') ORDER BY 1"; 69 var $_stmt; 70 var $_commit = OCI_COMMIT_ON_SUCCESS; 71 var $_initdate = true; // init date to YYYY-MM-DD 72 var $metaTablesSQL = "select table_name,table_type from cat where table_type in ('TABLE','VIEW') and table_name not like 'BIN\$%'"; // bin$ tables are recycle bin tables 73 var $metaColumnsSQL = "select cname,coltype,width, SCALE, PRECISION, NULLS, DEFAULTVAL from col where tname='%s' order by colno"; //changed by smondino@users.sourceforge. net 74 var $metaColumnsSQL2 = "select column_name,data_type,data_length, data_scale, data_precision, 75 case when nullable = 'Y' then 'NULL' 76 else 'NOT NULL' end as nulls, 77 data_default from all_tab_cols 78 where owner='%s' and table_name='%s' order by column_id"; // when there is a schema 79 var $_bindInputArray = true; 80 var $hasGenID = true; 81 var $_genIDSQL = "SELECT (%s.nextval) FROM DUAL"; 82 var $_genSeqSQL = " 83 DECLARE 84 PRAGMA AUTONOMOUS_TRANSACTION; 85 BEGIN 86 execute immediate 'CREATE SEQUENCE %s START WITH %s'; 87 END; 88 "; 89 90 var $_dropSeqSQL = "DROP SEQUENCE %s"; 91 var $hasAffectedRows = true; 92 var $random = "abs(mod(DBMS_RANDOM.RANDOM,10000001)/10000000)"; 93 var $noNullStrings = false; 94 var $connectSID = false; 95 var $_bind = false; 96 var $_nestedSQL = true; 97 var $_getarray = false; // currently not working 98 var $leftOuter = ''; // oracle wierdness, $col = $value (+) for LEFT OUTER, $col (+)= $value for RIGHT OUTER 99 var $session_sharing_force_blob = false; // alter session on updateblob if set to true 100 var $firstrows = true; // enable first rows optimization on SelectLimit() 101 var $selectOffsetAlg1 = 1000; // when to use 1st algorithm of selectlimit. 102 var $NLS_DATE_FORMAT = 'YYYY-MM-DD'; // To include time, use 'RRRR-MM-DD HH24:MI:SS' 103 var $dateformat = 'YYYY-MM-DD'; // DBDate format 104 var $useDBDateFormatForTextInput=false; 105 var $datetime = false; // MetaType('DATE') returns 'D' (datetime==false) or 'T' (datetime == true) 106 var $_refLOBs = array(); 107 108 // var $ansiOuter = true; // if oracle9 109 110 /* 111 * Legacy compatibility for sequence names for emulated auto-increments 112 */ 113 public $useCompactAutoIncrements = false; 114 115 /* 116 * Defines the schema name for emulated auto-increment columns 117 */ 118 public $schema = false; 119 120 /* 121 * Defines the prefix for emulated auto-increment columns 122 */ 123 public $seqPrefix = 'SEQ_'; 124 125 /* function MetaColumns($table, $normalize=true) added by smondino@users.sourceforge.net*/ 126 function MetaColumns($table, $normalize=true) 127 { 128 global $ADODB_FETCH_MODE; 129 130 $schema = ''; 131 $this->_findschema($table, $schema); 132 133 $save = $ADODB_FETCH_MODE; 134 $ADODB_FETCH_MODE = ADODB_FETCH_NUM; 135 if ($this->fetchMode !== false) { 136 $savem = $this->SetFetchMode(false); 137 } 138 139 if ($schema){ 140 $rs = $this->Execute(sprintf($this->metaColumnsSQL2, strtoupper($schema), strtoupper($table))); 141 } 142 else { 143 $rs = $this->Execute(sprintf($this->metaColumnsSQL,strtoupper($table))); 144 } 145 146 if (isset($savem)) { 147 $this->SetFetchMode($savem); 148 } 149 $ADODB_FETCH_MODE = $save; 150 if (!$rs) { 151 return false; 152 } 153 $retarr = array(); 154 while (!$rs->EOF) { 155 $fld = new ADOFieldObject(); 156 $fld->name = $rs->fields[0]; 157 $fld->type = $rs->fields[1]; 158 $fld->max_length = $rs->fields[2]; 159 $fld->scale = $rs->fields[3]; 160 if ($rs->fields[1] == 'NUMBER') { 161 if ($rs->fields[3] == 0) { 162 $fld->type = 'INT'; 163 } 164 $fld->max_length = $rs->fields[4]; 165 } 166 $fld->not_null = (strncmp($rs->fields[5], 'NOT',3) === 0); 167 $fld->binary = (strpos($fld->type,'BLOB') !== false); 168 $fld->default_value = $rs->fields[6]; 169 170 if ($ADODB_FETCH_MODE == ADODB_FETCH_NUM) { 171 $retarr[] = $fld; 172 } 173 else { 174 $retarr[strtoupper($fld->name)] = $fld; 175 } 176 $rs->MoveNext(); 177 } 178 $rs->Close(); 179 if (empty($retarr)) { 180 return false; 181 } 182 return $retarr; 183 } 184 185 function Time() 186 { 187 $rs = $this->Execute("select TO_CHAR($this->sysTimeStamp,'YYYY-MM-DD HH24:MI:SS') from dual"); 188 if ($rs && !$rs->EOF) { 189 return $this->UnixTimeStamp(reset($rs->fields)); 190 } 191 192 return false; 193 } 194 195 /** 196 * Multiple modes of connection are supported: 197 * 198 * a. Local Database 199 * $conn->Connect(false,'scott','tiger'); 200 * 201 * b. From tnsnames.ora 202 * $conn->Connect($tnsname,'scott','tiger'); 203 * $conn->Connect(false,'scott','tiger',$tnsname); 204 * 205 * c. Server + service name 206 * $conn->Connect($serveraddress,'scott,'tiger',$service_name); 207 * 208 * d. Server + SID 209 * $conn->connectSID = true; 210 * $conn->Connect($serveraddress,'scott,'tiger',$SID); 211 * 212 * @param string|false $argHostname DB server hostname or TNS name 213 * @param string $argUsername 214 * @param string $argPassword 215 * @param string $argDatabasename Service name, SID (defaults to null) 216 * @param int $mode Connection mode, defaults to 0 217 * (0 = non-persistent, 1 = persistent, 2 = force new connection) 218 * 219 * @return bool 220 */ 221 function _connect($argHostname, $argUsername, $argPassword, $argDatabasename=null, $mode=0) 222 { 223 if (!function_exists('oci_pconnect')) { 224 return null; 225 } 226 #adodb_backtrace(); 227 228 $this->_errorMsg = false; 229 $this->_errorCode = false; 230 231 if($argHostname) { // added by Jorma Tuomainen <jorma.tuomainen@ppoy.fi> 232 if (empty($argDatabasename)) { 233 $argDatabasename = $argHostname; 234 } 235 else { 236 if(strpos($argHostname,":")) { 237 $argHostinfo=explode(":",$argHostname); 238 $argHostname=$argHostinfo[0]; 239 $argHostport=$argHostinfo[1]; 240 } else { 241 $argHostport = empty($this->port)? "1521" : $this->port; 242 } 243 244 if (strncasecmp($argDatabasename,'SID=',4) == 0) { 245 $argDatabasename = substr($argDatabasename,4); 246 $this->connectSID = true; 247 } 248 249 if ($this->connectSID) { 250 $argDatabasename="(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=".$argHostname 251 .")(PORT=$argHostport))(CONNECT_DATA=(SID=$argDatabasename)))"; 252 } else 253 $argDatabasename="(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=".$argHostname 254 .")(PORT=$argHostport))(CONNECT_DATA=(SERVICE_NAME=$argDatabasename)))"; 255 } 256 } 257 258 //if ($argHostname) print "<p>Connect: 1st argument should be left blank for $this->databaseType</p>"; 259 if ($mode==1) { 260 $this->_connectionID = ($this->charSet) 261 ? oci_pconnect($argUsername,$argPassword, $argDatabasename,$this->charSet) 262 : oci_pconnect($argUsername,$argPassword, $argDatabasename); 263 if ($this->_connectionID && $this->autoRollback) { 264 oci_rollback($this->_connectionID); 265 } 266 } else if ($mode==2) { 267 $this->_connectionID = ($this->charSet) 268 ? oci_new_connect($argUsername,$argPassword, $argDatabasename,$this->charSet) 269 : oci_new_connect($argUsername,$argPassword, $argDatabasename); 270 } else { 271 $this->_connectionID = ($this->charSet) 272 ? oci_connect($argUsername,$argPassword, $argDatabasename,$this->charSet) 273 : oci_connect($argUsername,$argPassword, $argDatabasename); 274 } 275 if (!$this->_connectionID) { 276 return false; 277 } 278 279 if ($this->_initdate) { 280 $this->Execute("ALTER SESSION SET NLS_DATE_FORMAT='".$this->NLS_DATE_FORMAT."'"); 281 } 282 283 // looks like: 284 // Oracle8i Enterprise Edition Release 8.1.7.0.0 - Production With the Partitioning option JServer Release 8.1.7.0.0 - Production 285 // $vers = oci_server_version($this->_connectionID); 286 // if (strpos($vers,'8i') !== false) $this->ansiOuter = true; 287 return true; 288 } 289 290 function ServerInfo() 291 { 292 $arr['compat'] = $this->GetOne('select value from sys.database_compatible_level'); 293 $arr['description'] = @oci_server_version($this->_connectionID); 294 $arr['version'] = ADOConnection::_findvers($arr['description']); 295 return $arr; 296 } 297 // returns true or false 298 function _pconnect($argHostname, $argUsername, $argPassword, $argDatabasename) 299 { 300 return $this->_connect($argHostname, $argUsername, $argPassword, $argDatabasename,1); 301 } 302 303 // returns true or false 304 function _nconnect($argHostname, $argUsername, $argPassword, $argDatabasename) 305 { 306 return $this->_connect($argHostname, $argUsername, $argPassword, $argDatabasename,2); 307 } 308 309 function _affectedrows() 310 { 311 if (is_resource($this->_stmt)) { 312 return @oci_num_rows($this->_stmt); 313 } 314 return 0; 315 } 316 317 function IfNull( $field, $ifNull ) 318 { 319 return " NVL($field, $ifNull) "; // if Oracle 320 } 321 322 protected function _insertID($table = '', $column = '') 323 { 324 if ($this->schema) 325 { 326 $t = strpos($table,'.'); 327 if ($t !== false) 328 $tab = substr($table,$t+1); 329 else 330 $tab = $table; 331 332 if ($this->useCompactAutoIncrements) 333 $tab = sprintf('%u',crc32(strtolower($tab))); 334 335 $seqname = $this->schema.'.'.$this->seqPrefix.$tab; 336 } 337 else 338 { 339 if ($this->useCompactAutoIncrements) 340 $table = sprintf('%u',crc32(strtolower($table))); 341 342 $seqname = $this->seqPrefix.$table; 343 } 344 345 if (strlen($seqname) > 30) 346 /* 347 * We cannot successfully identify the sequence 348 */ 349 return false; 350 351 return $this->getOne("SELECT $seqname.currval FROM dual"); 352 } 353 354 // format and return date string in database date format 355 function DBDate($d,$isfld=false) 356 { 357 if (empty($d) && $d !== 0) { 358 return 'null'; 359 } 360 361 if ($isfld) { 362 $d = _adodb_safedate($d); 363 return 'TO_DATE('.$d.",'".$this->dateformat."')"; 364 } 365 366 if (is_string($d)) { 367 $d = ADORecordSet::UnixDate($d); 368 } 369 370 if (is_object($d)) { 371 $ds = $d->format($this->fmtDate); 372 } 373 else { 374 $ds = adodb_date($this->fmtDate,$d); 375 } 376 377 return "TO_DATE(".$ds.",'".$this->dateformat."')"; 378 } 379 380 function BindDate($d) 381 { 382 $d = ADOConnection::DBDate($d); 383 if (strncmp($d, "'", 1)) { 384 return $d; 385 } 386 387 return substr($d, 1, strlen($d)-2); 388 } 389 390 function BindTimeStamp($ts) 391 { 392 if (empty($ts) && $ts !== 0) { 393 return 'null'; 394 } 395 if (is_string($ts)) { 396 $ts = ADORecordSet::UnixTimeStamp($ts); 397 } 398 399 if (is_object($ts)) { 400 $tss = $ts->format("'Y-m-d H:i:s'"); 401 } 402 else { 403 $tss = adodb_date("'Y-m-d H:i:s'",$ts); 404 } 405 406 return $tss; 407 } 408 409 // format and return date string in database timestamp format 410 function DBTimeStamp($ts,$isfld=false) 411 { 412 if (empty($ts) && $ts !== 0) { 413 return 'null'; 414 } 415 if ($isfld) { 416 return 'TO_DATE(substr('.$ts.",1,19),'RRRR-MM-DD, HH24:MI:SS')"; 417 } 418 if (is_string($ts)) { 419 $ts = ADORecordSet::UnixTimeStamp($ts); 420 } 421 422 if (is_object($ts)) { 423 $tss = $ts->format("'Y-m-d H:i:s'"); 424 } 425 else { 426 $tss = date("'Y-m-d H:i:s'",$ts); 427 } 428 429 return 'TO_DATE('.$tss.",'RRRR-MM-DD, HH24:MI:SS')"; 430 } 431 432 function RowLock($tables,$where,$col='1 as adodbignore') 433 { 434 if ($this->autoCommit) { 435 $this->BeginTrans(); 436 } 437 return $this->GetOne("select $col from $tables where $where for update"); 438 } 439 440 function MetaTables($ttype=false,$showSchema=false,$mask=false) 441 { 442 if ($mask) { 443 $save = $this->metaTablesSQL; 444 $mask = $this->qstr(strtoupper($mask)); 445 $this->metaTablesSQL .= " AND upper(table_name) like $mask"; 446 } 447 $ret = ADOConnection::MetaTables($ttype,$showSchema); 448 449 if ($mask) { 450 $this->metaTablesSQL = $save; 451 } 452 return $ret; 453 } 454 455 // Mark Newnham 456 function MetaIndexes ($table, $primary = FALSE, $owner=false) 457 { 458 // save old fetch mode 459 global $ADODB_FETCH_MODE; 460 461 $save = $ADODB_FETCH_MODE; 462 $ADODB_FETCH_MODE = ADODB_FETCH_NUM; 463 464 if ($this->fetchMode !== FALSE) { 465 $savem = $this->SetFetchMode(FALSE); 466 } 467 468 // get index details 469 $table = strtoupper($table); 470 471 // get Primary index 472 $primary_key = ''; 473 474 $rs = $this->Execute(sprintf("SELECT * FROM ALL_CONSTRAINTS WHERE UPPER(TABLE_NAME)='%s' AND CONSTRAINT_TYPE='P'",$table)); 475 if (!is_object($rs)) { 476 if (isset($savem)) { 477 $this->SetFetchMode($savem); 478 } 479 $ADODB_FETCH_MODE = $save; 480 return false; 481 } 482 483 if ($row = $rs->FetchRow()) { 484 $primary_key = $row[1]; //constraint_name 485 } 486 487 if ($primary==TRUE && $primary_key=='') { 488 if (isset($savem)) { 489 $this->SetFetchMode($savem); 490 } 491 $ADODB_FETCH_MODE = $save; 492 return false; //There is no primary key 493 } 494 495 $rs = $this->Execute(sprintf("SELECT ALL_INDEXES.INDEX_NAME, ALL_INDEXES.UNIQUENESS, ALL_IND_COLUMNS.COLUMN_POSITION, ALL_IND_COLUMNS.COLUMN_NAME FROM ALL_INDEXES,ALL_IND_COLUMNS WHERE UPPER(ALL_INDEXES.TABLE_NAME)='%s' AND ALL_IND_COLUMNS.INDEX_NAME=ALL_INDEXES.INDEX_NAME",$table)); 496 497 498 if (!is_object($rs)) { 499 if (isset($savem)) { 500 $this->SetFetchMode($savem); 501 } 502 $ADODB_FETCH_MODE = $save; 503 return false; 504 } 505 506 $indexes = array (); 507 // parse index data into array 508 509 while ($row = $rs->FetchRow()) { 510 if ($primary && $row[0] != $primary_key) { 511 continue; 512 } 513 if (!isset($indexes[$row[0]])) { 514 $indexes[$row[0]] = array( 515 'unique' => ($row[1] == 'UNIQUE'), 516 'columns' => array() 517 ); 518 } 519 $indexes[$row[0]]['columns'][$row[2] - 1] = $row[3]; 520 } 521 522 // sort columns by order in the index 523 foreach ( array_keys ($indexes) as $index ) { 524 ksort ($indexes[$index]['columns']); 525 } 526 527 if (isset($savem)) { 528 $this->SetFetchMode($savem); 529 $ADODB_FETCH_MODE = $save; 530 } 531 return $indexes; 532 } 533 534 function BeginTrans() 535 { 536 if ($this->transOff) { 537 return true; 538 } 539 $this->transCnt += 1; 540 $this->autoCommit = false; 541 $this->_commit = OCI_DEFAULT; 542 543 if ($this->_transmode) { 544 $ok = $this->Execute("SET TRANSACTION ".$this->_transmode); 545 } 546 else { 547 $ok = true; 548 } 549 550 return $ok ? true : false; 551 } 552 553 function CommitTrans($ok=true) 554 { 555 if ($this->transOff) { 556 return true; 557 } 558 if (!$ok) { 559 return $this->RollbackTrans(); 560 } 561 562 if ($this->transCnt) { 563 $this->transCnt -= 1; 564 } 565 $ret = oci_commit($this->_connectionID); 566 $this->_commit = OCI_COMMIT_ON_SUCCESS; 567 $this->autoCommit = true; 568 return $ret; 569 } 570 571 function RollbackTrans() 572 { 573 if ($this->transOff) { 574 return true; 575 } 576 if ($this->transCnt) { 577 $this->transCnt -= 1; 578 } 579 $ret = oci_rollback($this->_connectionID); 580 $this->_commit = OCI_COMMIT_ON_SUCCESS; 581 $this->autoCommit = true; 582 return $ret; 583 } 584 585 586 function SelectDB($dbName) 587 { 588 return false; 589 } 590 591 function ErrorMsg() 592 { 593 if ($this->_errorMsg !== false) { 594 return $this->_errorMsg; 595 } 596 597 if (is_resource($this->_stmt)) { 598 $arr = @oci_error($this->_stmt); 599 } 600 if (empty($arr)) { 601 if (is_resource($this->_connectionID)) { 602 $arr = @oci_error($this->_connectionID); 603 } 604 else { 605 $arr = @oci_error(); 606 } 607 if ($arr === false) { 608 return ''; 609 } 610 } 611 $this->_errorMsg = $arr['message']; 612 $this->_errorCode = $arr['code']; 613 return $this->_errorMsg; 614 } 615 616 function ErrorNo() 617 { 618 if ($this->_errorCode !== false) { 619 return $this->_errorCode; 620 } 621 622 if (is_resource($this->_stmt)) { 623 $arr = @oci_error($this->_stmt); 624 } 625 if (empty($arr)) { 626 $arr = @oci_error($this->_connectionID); 627 if ($arr == false) { 628 $arr = @oci_error(); 629 } 630 if ($arr == false) { 631 return ''; 632 } 633 } 634 635 $this->_errorMsg = $arr['message']; 636 $this->_errorCode = $arr['code']; 637 638 return $arr['code']; 639 } 640 641 /** 642 * Format date column in sql string given an input format that understands Y M D 643 */ 644 function SQLDate($fmt, $col=false) 645 { 646 if (!$col) { 647 $col = $this->sysTimeStamp; 648 } 649 $s = 'TO_CHAR('.$col.",'"; 650 651 $len = strlen($fmt); 652 for ($i=0; $i < $len; $i++) { 653 $ch = $fmt[$i]; 654 switch($ch) { 655 case 'Y': 656 case 'y': 657 $s .= 'YYYY'; 658 break; 659 case 'Q': 660 case 'q': 661 $s .= 'Q'; 662 break; 663 664 case 'M': 665 $s .= 'Mon'; 666 break; 667 668 case 'm': 669 $s .= 'MM'; 670 break; 671 case 'D': 672 case 'd': 673 $s .= 'DD'; 674 break; 675 676 case 'H': 677 $s.= 'HH24'; 678 break; 679 680 case 'h': 681 $s .= 'HH'; 682 break; 683 684 case 'i': 685 $s .= 'MI'; 686 break; 687 688 case 's': 689 $s .= 'SS'; 690 break; 691 692 case 'a': 693 case 'A': 694 $s .= 'AM'; 695 break; 696 697 case 'w': 698 $s .= 'D'; 699 break; 700 701 case 'l': 702 $s .= 'DAY'; 703 break; 704 705 case 'W': 706 $s .= 'WW'; 707 break; 708 709 default: 710 // handle escape characters... 711 if ($ch == '\\') { 712 $i++; 713 $ch = substr($fmt,$i,1); 714 } 715 if (strpos('-/.:;, ',$ch) !== false) { 716 $s .= $ch; 717 } 718 else { 719 $s .= '"'.$ch.'"'; 720 } 721 722 } 723 } 724 return $s. "')"; 725 } 726 727 function GetRandRow($sql, $arr = false) 728 { 729 $sql = "SELECT * FROM ($sql ORDER BY dbms_random.value) WHERE rownum = 1"; 730 731 return $this->GetRow($sql,$arr); 732 } 733 734 /** 735 * This algorithm makes use of 736 * 737 * a. FIRST_ROWS hint 738 * The FIRST_ROWS hint explicitly chooses the approach to optimize response 739 * time, that is, minimum resource usage to return the first row. Results 740 * will be returned as soon as they are identified. 741 * 742 * b. Uses rownum tricks to obtain only the required rows from a given offset. 743 * As this uses complicated sql statements, we only use this if $offset >= 100. 744 * This idea by Tomas V V Cox. 745 * 746 * This implementation does not appear to work with oracle 8.0.5 or earlier. 747 * Comment out this function then, and the slower SelectLimit() in the base 748 * class will be used. 749 * 750 * Note: FIRST_ROWS hinting is only used if $sql is a string; when 751 * processing a prepared statement's handle, no hinting is performed. 752 */ 753 function SelectLimit($sql,$nrows=-1,$offset=-1, $inputarr=false,$secs2cache=0) 754 { 755 $nrows = (int) $nrows; 756 $offset = (int) $offset; 757 // Since the methods used to limit the number of returned rows rely 758 // on modifying the provided SQL query, we can't work with prepared 759 // statements so we just extract the SQL string. 760 if(is_array($sql)) { 761 $sql = $sql[0]; 762 } 763 764 // seems that oracle only supports 1 hint comment in 8i 765 if ($this->firstrows) { 766 if ($nrows > 500 && $nrows < 1000) { 767 $hint = "FIRST_ROWS($nrows)"; 768 } 769 else { 770 $hint = 'FIRST_ROWS'; 771 } 772 773 if (strpos($sql,'/*+') !== false) { 774 $sql = str_replace('/*+ ',"/*+$hint ",$sql); 775 } 776 else { 777 $sql = preg_replace('/^[ \t\n]*select/i',"SELECT /*+$hint*/",$sql); 778 } 779 $hint = "/*+ $hint */"; 780 } else { 781 $hint = ''; 782 } 783 784 if ($offset == -1 || ($offset < $this->selectOffsetAlg1 && 0 < $nrows && $nrows < 1000)) { 785 if ($nrows > 0) { 786 if ($offset > 0) { 787 $nrows += $offset; 788 } 789 $sql = "select * from (".$sql.") where rownum <= :adodb_offset"; 790 791 // If non-bound statement, $inputarr is false 792 if (!$inputarr) { 793 $inputarr = array(); 794 } 795 $inputarr['adodb_offset'] = $nrows; 796 $nrows = -1; 797 } 798 // note that $nrows = 0 still has to work ==> no rows returned 799 800 return ADOConnection::SelectLimit($sql, $nrows, $offset, $inputarr, $secs2cache); 801 } else { 802 // Algorithm by Tomas V V Cox, from PEAR DB oci8.php 803 804 // Let Oracle return the name of the columns 805 $q_fields = "SELECT * FROM (".$sql.") WHERE NULL = NULL"; 806 807 if (! $stmt_arr = $this->Prepare($q_fields)) { 808 return false; 809 } 810 $stmt = $stmt_arr[1]; 811 812 if (is_array($inputarr)) { 813 foreach($inputarr as $k => $v) { 814 $i=0; 815 if ($this->databaseType == 'oci8po') { 816 $bv_name = ":".$i++; 817 } else { 818 $bv_name = ":".$k; 819 } 820 if (is_array($v)) { 821 // suggested by g.giunta@libero. 822 if (sizeof($v) == 2) { 823 oci_bind_by_name($stmt,$bv_name,$inputarr[$k][0],$v[1]); 824 } 825 else { 826 oci_bind_by_name($stmt,$bv_name,$inputarr[$k][0],$v[1],$v[2]); 827 } 828 } else { 829 $len = -1; 830 if ($v === ' ') { 831 $len = 1; 832 } 833 if (isset($bindarr)) { // is prepared sql, so no need to oci_bind_by_name again 834 $bindarr[$k] = $v; 835 } else { // dynamic sql, so rebind every time 836 oci_bind_by_name($stmt,$bv_name,$inputarr[$k],$len); 837 } 838 } 839 } 840 } 841 842 if (!oci_execute($stmt, OCI_DEFAULT)) { 843 oci_free_statement($stmt); 844 return false; 845 } 846 847 $ncols = oci_num_fields($stmt); 848 for ( $i = 1; $i <= $ncols; $i++ ) { 849 $cols[] = '"'.oci_field_name($stmt, $i).'"'; 850 } 851 $result = false; 852 853 oci_free_statement($stmt); 854 $fields = implode(',', $cols); 855 if ($nrows <= 0) { 856 $nrows = 999999999999; 857 } 858 else { 859 $nrows += $offset; 860 } 861 $offset += 1; // in Oracle rownum starts at 1 862 863 $sql = "SELECT $hint $fields FROM". 864 "(SELECT rownum as adodb_rownum, $fields FROM". 865 " ($sql) WHERE rownum <= :adodb_nrows". 866 ") WHERE adodb_rownum >= :adodb_offset"; 867 $inputarr['adodb_nrows'] = $nrows; 868 $inputarr['adodb_offset'] = $offset; 869 870 if ($secs2cache > 0) { 871 $rs = $this->CacheExecute($secs2cache, $sql,$inputarr); 872 } 873 else { 874 $rs = $this->Execute($sql, $inputarr); 875 } 876 return $rs; 877 } 878 } 879 880 /** 881 * Usage: 882 * Store BLOBs and CLOBs 883 * 884 * Example: to store $var in a blob 885 * $conn->Execute('insert into TABLE (id,ablob) values(12,empty_blob())'); 886 * $conn->UpdateBlob('TABLE', 'ablob', $varHoldingBlob, 'ID=12', 'BLOB'); 887 * 888 * $blobtype supports 'BLOB' and 'CLOB', but you need to change to 'empty_clob()'. 889 * 890 * to get length of LOB: 891 * select DBMS_LOB.GETLENGTH(ablob) from TABLE 892 * 893 * If you are using CURSOR_SHARING = force, it appears this will case a segfault 894 * under oracle 8.1.7.0. Run: 895 * $db->Execute('ALTER SESSION SET CURSOR_SHARING=EXACT'); 896 * before UpdateBlob() then... 897 */ 898 function UpdateBlob($table,$column,$val,$where,$blobtype='BLOB') 899 { 900 901 //if (strlen($val) < 4000) return $this->Execute("UPDATE $table SET $column=:blob WHERE $where",array('blob'=>$val)) != false; 902 903 switch(strtoupper($blobtype)) { 904 default: ADOConnection::outp("<b>UpdateBlob</b>: Unknown blobtype=$blobtype"); return false; 905 case 'BLOB': $type = OCI_B_BLOB; break; 906 case 'CLOB': $type = OCI_B_CLOB; break; 907 } 908 909 if ($this->databaseType == 'oci8po') 910 $sql = "UPDATE $table set $column=EMPTY_{$blobtype}() WHERE $where RETURNING $column INTO ?"; 911 else 912 $sql = "UPDATE $table set $column=EMPTY_{$blobtype}() WHERE $where RETURNING $column INTO :blob"; 913 914 $desc = oci_new_descriptor($this->_connectionID, OCI_D_LOB); 915 $arr['blob'] = array($desc,-1,$type); 916 if ($this->session_sharing_force_blob) { 917 $this->Execute('ALTER SESSION SET CURSOR_SHARING=EXACT'); 918 } 919 $commit = $this->autoCommit; 920 if ($commit) { 921 $this->BeginTrans(); 922 } 923 $rs = $this->_Execute($sql,$arr); 924 if ($rez = !empty($rs)) { 925 $desc->save($val); 926 } 927 $desc->free(); 928 if ($commit) { 929 $this->CommitTrans(); 930 } 931 if ($this->session_sharing_force_blob) { 932 $this->Execute('ALTER SESSION SET CURSOR_SHARING=FORCE'); 933 } 934 935 if ($rez) { 936 $rs->Close(); 937 } 938 return $rez; 939 } 940 941 /** 942 * Usage: store file pointed to by $val in a blob 943 */ 944 function UpdateBlobFile($table,$column,$val,$where,$blobtype='BLOB') 945 { 946 switch(strtoupper($blobtype)) { 947 default: ADOConnection::outp( "<b>UpdateBlob</b>: Unknown blobtype=$blobtype"); return false; 948 case 'BLOB': $type = OCI_B_BLOB; break; 949 case 'CLOB': $type = OCI_B_CLOB; break; 950 } 951 952 if ($this->databaseType == 'oci8po') 953 $sql = "UPDATE $table set $column=EMPTY_{$blobtype}() WHERE $where RETURNING $column INTO ?"; 954 else 955 $sql = "UPDATE $table set $column=EMPTY_{$blobtype}() WHERE $where RETURNING $column INTO :blob"; 956 957 $desc = oci_new_descriptor($this->_connectionID, OCI_D_LOB); 958 $arr['blob'] = array($desc,-1,$type); 959 960 $this->BeginTrans(); 961 $rs = ADODB_oci8::Execute($sql,$arr); 962 if ($rez = !empty($rs)) { 963 $desc->savefile($val); 964 } 965 $desc->free(); 966 $this->CommitTrans(); 967 968 if ($rez) { 969 $rs->Close(); 970 } 971 return $rez; 972 } 973 974 /** 975 * Execute SQL 976 * 977 * @param string|array $sql SQL statement to execute, or possibly an array holding 978 * prepared statement ($sql[0] will hold sql text). 979 * @param array|false $inputarr holds the input data to bind to. 980 * Null elements will be set to null. 981 * 982 * @return ADORecordSet|false 983 */ 984 function Execute($sql,$inputarr=false) 985 { 986 if ($this->fnExecute) { 987 $fn = $this->fnExecute; 988 $ret = $fn($this,$sql,$inputarr); 989 if (isset($ret)) { 990 return $ret; 991 } 992 } 993 if ($inputarr !== false) { 994 if (!is_array($inputarr)) { 995 $inputarr = array($inputarr); 996 } 997 998 $element0 = reset($inputarr); 999 $array2d = $this->bulkBind && is_array($element0) && !is_object(reset($element0)); 1000 1001 # see PHPLens Issue No: 18786 1002 if ($array2d || !$this->_bindInputArray) { 1003 1004 # is_object check because oci8 descriptors can be passed in 1005 if ($array2d && $this->_bindInputArray) { 1006 if (is_string($sql)) { 1007 $stmt = $this->Prepare($sql); 1008 } else { 1009 $stmt = $sql; 1010 } 1011 1012 foreach($inputarr as $arr) { 1013 $ret = $this->_Execute($stmt,$arr); 1014 if (!$ret) { 1015 return $ret; 1016 } 1017 } 1018 return $ret; 1019 } else { 1020 $sqlarr = explode(':', $sql); 1021 $sql = ''; 1022 $lastnomatch = -2; 1023 #var_dump($sqlarr);echo "<hr>";var_dump($inputarr);echo"<hr>"; 1024 foreach($sqlarr as $k => $str) { 1025 if ($k == 0) { 1026 $sql = $str; 1027 continue; 1028 } 1029 // we need $lastnomatch because of the following datetime, 1030 // eg. '10:10:01', which causes code to think that there is bind param :10 and :1 1031 $ok = preg_match('/^([0-9]*)/', $str, $arr); 1032 1033 if (!$ok) { 1034 $sql .= $str; 1035 } else { 1036 $at = $arr[1]; 1037 if (isset($inputarr[$at]) || is_null($inputarr[$at])) { 1038 if ((strlen($at) == strlen($str) && $k < sizeof($arr)-1)) { 1039 $sql .= ':'.$str; 1040 $lastnomatch = $k; 1041 } else if ($lastnomatch == $k-1) { 1042 $sql .= ':'.$str; 1043 } else { 1044 if (is_null($inputarr[$at])) { 1045 $sql .= 'null'; 1046 } 1047 else { 1048 $sql .= $this->qstr($inputarr[$at]); 1049 } 1050 $sql .= substr($str, strlen($at)); 1051 } 1052 } else { 1053 $sql .= ':'.$str; 1054 } 1055 } 1056 } 1057 $inputarr = false; 1058 } 1059 } 1060 $ret = $this->_Execute($sql,$inputarr); 1061 1062 } else { 1063 $ret = $this->_Execute($sql,false); 1064 } 1065 1066 return $ret; 1067 } 1068 1069 /* 1070 * Example of usage: 1071 * $stmt = $this->Prepare('insert into emp (empno, ename) values (:empno, :ename)'); 1072 */ 1073 function Prepare($sql,$cursor=false) 1074 { 1075 static $BINDNUM = 0; 1076 1077 $stmt = oci_parse($this->_connectionID,$sql); 1078 1079 if (!$stmt) { 1080 $this->_errorMsg = false; 1081 $this->_errorCode = false; 1082 $arr = @oci_error($this->_connectionID); 1083 if ($arr === false) { 1084 return false; 1085 } 1086 1087 $this->_errorMsg = $arr['message']; 1088 $this->_errorCode = $arr['code']; 1089 return false; 1090 } 1091 1092 $BINDNUM += 1; 1093 1094 $sttype = @oci_statement_type($stmt); 1095 if ($sttype == 'BEGIN' || $sttype == 'DECLARE') { 1096 return array($sql,$stmt,0,$BINDNUM, ($cursor) ? oci_new_cursor($this->_connectionID) : false); 1097 } 1098 return array($sql,$stmt,0,$BINDNUM); 1099 } 1100 1101 function releaseStatement(&$stmt) 1102 { 1103 if (is_array($stmt) 1104 && isset($stmt[1]) 1105 && is_resource($stmt[1]) 1106 && oci_free_statement($stmt[1]) 1107 ) { 1108 // Clearing the resource to avoid it being of type Unknown 1109 $stmt[1] = null; 1110 return true; 1111 } 1112 1113 // Not a valid prepared statement 1114 return false; 1115 } 1116 1117 /* 1118 Call an oracle stored procedure and returns a cursor variable as a recordset. 1119 Concept by Robert Tuttle robert@ud.com 1120 1121 Example: 1122 Note: we return a cursor variable in :RS2 1123 $rs = $db->ExecuteCursor("BEGIN adodb.open_tab(:RS2); END;",'RS2'); 1124 1125 $rs = $db->ExecuteCursor( 1126 "BEGIN :RS2 = adodb.getdata(:VAR1); END;", 1127 'RS2', 1128 array('VAR1' => 'Mr Bean')); 1129 1130 */ 1131 function ExecuteCursor($sql,$cursorName='rs',$params=false) 1132 { 1133 if (is_array($sql)) { 1134 $stmt = $sql; 1135 } 1136 else $stmt = ADODB_oci8::Prepare($sql,true); # true to allocate oci_new_cursor 1137 1138 if (is_array($stmt) && sizeof($stmt) >= 5) { 1139 $hasref = true; 1140 $ignoreCur = false; 1141 $this->Parameter($stmt, $ignoreCur, $cursorName, false, -1, OCI_B_CURSOR); 1142 if ($params) { 1143 foreach($params as $k => $v) { 1144 $this->Parameter($stmt,$params[$k], $k); 1145 } 1146 } 1147 } else 1148 $hasref = false; 1149 1150 $rs = $this->Execute($stmt); 1151 if ($rs) { 1152 if ($rs->databaseType == 'array') { 1153 oci_free_cursor($stmt[4]); 1154 } 1155 elseif ($hasref) { 1156 $rs->_refcursor = $stmt[4]; 1157 } 1158 } 1159 return $rs; 1160 } 1161 1162 /** 1163 * Bind a variable -- very, very fast for executing repeated statements in oracle. 1164 * 1165 * Better than using 1166 * for ($i = 0; $i < $max; $i++) { 1167 * $p1 = ?; $p2 = ?; $p3 = ?; 1168 * $this->Execute("insert into table (col0, col1, col2) values (:0, :1, :2)", array($p1,$p2,$p3)); 1169 * } 1170 * 1171 * Usage: 1172 * $stmt = $DB->Prepare("insert into table (col0, col1, col2) values (:0, :1, :2)"); 1173 * $DB->Bind($stmt, $p1); 1174 * $DB->Bind($stmt, $p2); 1175 * $DB->Bind($stmt, $p3); 1176 * for ($i = 0; $i < $max; $i++) { 1177 * $p1 = ?; $p2 = ?; $p3 = ?; 1178 * $DB->Execute($stmt); 1179 * } 1180 * 1181 * Some timings to insert 1000 records, test table has 3 cols, and 1 index. 1182 * - Time 0.6081s (1644.60 inserts/sec) with direct oci_parse/oci_execute 1183 * - Time 0.6341s (1577.16 inserts/sec) with ADOdb Prepare/Bind/Execute 1184 * - Time 1.5533s ( 643.77 inserts/sec) with pure SQL using Execute 1185 * 1186 * Now if PHP only had batch/bulk updating like Java or PL/SQL... 1187 * 1188 * Note that the order of parameters differs from oci_bind_by_name, 1189 * because we default the names to :0, :1, :2 1190 */ 1191 function Bind(&$stmt,&$var,$size=4000,$type=false,$name=false,$isOutput=false) 1192 { 1193 1194 if (!is_array($stmt)) { 1195 return false; 1196 } 1197 1198 if (($type == OCI_B_CURSOR) && sizeof($stmt) >= 5) { 1199 return oci_bind_by_name($stmt[1],":".$name,$stmt[4],$size,$type); 1200 } 1201 1202 if ($name == false) { 1203 if ($type !== false) { 1204 $rez = oci_bind_by_name($stmt[1],":".$stmt[2],$var,$size,$type); 1205 } 1206 else { 1207 $rez = oci_bind_by_name($stmt[1],":".$stmt[2],$var,$size); // +1 byte for null terminator 1208 } 1209 $stmt[2] += 1; 1210 } else if (oci_lob_desc($type)) { 1211 if ($this->debug) { 1212 ADOConnection::outp("<b>Bind</b>: name = $name"); 1213 } 1214 //we have to create a new Descriptor here 1215 $numlob = count($this->_refLOBs); 1216 $this->_refLOBs[$numlob]['LOB'] = oci_new_descriptor($this->_connectionID, oci_lob_desc($type)); 1217 $this->_refLOBs[$numlob]['TYPE'] = $isOutput; 1218 1219 $tmp = $this->_refLOBs[$numlob]['LOB']; 1220 $rez = oci_bind_by_name($stmt[1], ":".$name, $tmp, -1, $type); 1221 if ($this->debug) { 1222 ADOConnection::outp("<b>Bind</b>: descriptor has been allocated, var (".$name.") binded"); 1223 } 1224 1225 // if type is input then write data to lob now 1226 if ($isOutput == false) { 1227 $var = $this->BlobEncode($var); 1228 $tmp->WriteTemporary($var); 1229 $this->_refLOBs[$numlob]['VAR'] = &$var; 1230 if ($this->debug) { 1231 ADOConnection::outp("<b>Bind</b>: LOB has been written to temp"); 1232 } 1233 } else { 1234 $this->_refLOBs[$numlob]['VAR'] = &$var; 1235 } 1236 $rez = $tmp; 1237 } else { 1238 if ($this->debug) 1239 ADOConnection::outp("<b>Bind</b>: name = $name"); 1240 1241 if ($type !== false) { 1242 $rez = oci_bind_by_name($stmt[1],":".$name,$var,$size,$type); 1243 } 1244 else { 1245 $rez = oci_bind_by_name($stmt[1],":".$name,$var,$size); // +1 byte for null terminator 1246 } 1247 } 1248 1249 return $rez; 1250 } 1251 1252 function Param($name,$type='C') 1253 { 1254 return ':'.$name; 1255 } 1256 1257 /** 1258 * Usage: 1259 * $stmt = $db->Prepare('select * from table where id =:myid and group=:group'); 1260 * $db->Parameter($stmt,$id,'myid'); 1261 * $db->Parameter($stmt,$group,'group'); 1262 * $db->Execute($stmt); 1263 * 1264 * @param $stmt Statement returned by {@see Prepare()} or {@see PrepareSP()}. 1265 * @param $var PHP variable to bind to 1266 * @param $name Name of stored procedure variable name to bind to. 1267 * @param bool $isOutput Indicates direction of parameter 0/false=IN 1=OUT 2= IN/OUT. This is ignored in oci8. 1268 * @param int $maxLen Holds an maximum length of the variable. 1269 * @param mixed $type The data type of $var. Legal values depend on driver. 1270 * 1271 * @link http://php.net/oci_bind_by_name 1272 */ 1273 function Parameter(&$stmt,&$var,$name,$isOutput=false,$maxLen=4000,$type=false) 1274 { 1275 if ($this->debug) { 1276 $prefix = ($isOutput) ? 'Out' : 'In'; 1277 $ztype = (empty($type)) ? 'false' : $type; 1278 ADOConnection::outp( "{$prefix}Parameter(\$stmt, \$php_var='$var', \$name='$name', \$maxLen=$maxLen, \$type=$ztype);"); 1279 } 1280 return $this->Bind($stmt,$var,$maxLen,$type,$name,$isOutput); 1281 } 1282 1283 /** 1284 * returns query ID if successful, otherwise false 1285 * this version supports: 1286 * 1287 * 1. $db->execute('select * from table'); 1288 * 1289 * 2. $db->prepare('insert into table (a,b,c) values (:0,:1,:2)'); 1290 * $db->execute($prepared_statement, array(1,2,3)); 1291 * 1292 * 3. $db->execute('insert into table (a,b,c) values (:a,:b,:c)',array('a'=>1,'b'=>2,'c'=>3)); 1293 * 1294 * 4. $db->prepare('insert into table (a,b,c) values (:0,:1,:2)'); 1295 * $db->bind($stmt,1); $db->bind($stmt,2); $db->bind($stmt,3); 1296 * $db->execute($stmt); 1297 */ 1298 function _query($sql,$inputarr=false) 1299 { 1300 if (is_array($sql)) { // is prepared sql 1301 $stmt = $sql[1]; 1302 1303 // we try to bind to permanent array, so that oci_bind_by_name is persistent 1304 // and carried out once only - note that max array element size is 4000 chars 1305 if (is_array($inputarr)) { 1306 $bindpos = $sql[3]; 1307 if (isset($this->_bind[$bindpos])) { 1308 // all tied up already 1309 $bindarr = $this->_bind[$bindpos]; 1310 } else { 1311 // one statement to bind them all 1312 $bindarr = array(); 1313 foreach($inputarr as $k => $v) { 1314 $bindarr[$k] = $v; 1315 oci_bind_by_name($stmt,":$k",$bindarr[$k],is_string($v) && strlen($v)>4000 ? -1 : 4000); 1316 } 1317 $this->_bind[$bindpos] = $bindarr; 1318 } 1319 } 1320 } else { 1321 $stmt=oci_parse($this->_connectionID,$sql); 1322 } 1323 1324 $this->_stmt = $stmt; 1325 if (!$stmt) { 1326 return false; 1327 } 1328 1329 if (defined('ADODB_PREFETCH_ROWS')) { 1330 @oci_set_prefetch($stmt,ADODB_PREFETCH_ROWS); 1331 } 1332 1333 if (is_array($inputarr)) { 1334 foreach($inputarr as $k => $v) { 1335 if (is_array($v)) { 1336 // suggested by g.giunta@libero. 1337 if (sizeof($v) == 2) { 1338 oci_bind_by_name($stmt,":$k",$inputarr[$k][0],$v[1]); 1339 } 1340 else { 1341 oci_bind_by_name($stmt,":$k",$inputarr[$k][0],$v[1],$v[2]); 1342 } 1343 1344 if ($this->debug==99) { 1345 if (is_object($v[0])) { 1346 echo "name=:$k",' len='.$v[1],' type='.$v[2],'<br>'; 1347 } 1348 else { 1349 echo "name=:$k",' var='.$inputarr[$k][0],' len='.$v[1],' type='.$v[2],'<br>'; 1350 } 1351 1352 } 1353 } else { 1354 $len = -1; 1355 if ($v === ' ') { 1356 $len = 1; 1357 } 1358 if (isset($bindarr)) { // is prepared sql, so no need to oci_bind_by_name again 1359 $bindarr[$k] = $v; 1360 } else { // dynamic sql, so rebind every time 1361 oci_bind_by_name($stmt,":$k",$inputarr[$k],$len); 1362 } 1363 } 1364 } 1365 } 1366 1367 $this->_errorMsg = false; 1368 $this->_errorCode = false; 1369 if (oci_execute($stmt,$this->_commit)) { 1370 1371 if (count($this -> _refLOBs) > 0) { 1372 1373 foreach ($this -> _refLOBs as $key => $value) { 1374 if ($this -> _refLOBs[$key]['TYPE'] == true) { 1375 $tmp = $this -> _refLOBs[$key]['LOB'] -> load(); 1376 if ($this -> debug) { 1377 ADOConnection::outp("<b>OUT LOB</b>: LOB has been loaded. <br>"); 1378 } 1379 //$_GLOBALS[$this -> _refLOBs[$key]['VAR']] = $tmp; 1380 $this -> _refLOBs[$key]['VAR'] = $tmp; 1381 } else { 1382 $this->_refLOBs[$key]['LOB']->save($this->_refLOBs[$key]['VAR']); 1383 $this -> _refLOBs[$key]['LOB']->free(); 1384 unset($this -> _refLOBs[$key]); 1385 if ($this->debug) { 1386 ADOConnection::outp("<b>IN LOB</b>: LOB has been saved. <br>"); 1387 } 1388 } 1389 } 1390 } 1391 1392 switch (@oci_statement_type($stmt)) { 1393 case "SELECT": 1394 return $stmt; 1395 1396 case 'DECLARE': 1397 case "BEGIN": 1398 if (is_array($sql) && !empty($sql[4])) { 1399 $cursor = $sql[4]; 1400 if (is_resource($cursor)) { 1401 $ok = oci_execute($cursor); 1402 return $cursor; 1403 } 1404 return $stmt; 1405 } else { 1406 if (is_resource($stmt)) { 1407 oci_free_statement($stmt); 1408 return true; 1409 } 1410 return $stmt; 1411 } 1412 break; 1413 default : 1414 1415 return true; 1416 } 1417 } 1418 return false; 1419 } 1420 1421 // From Oracle Whitepaper: PHP Scalability and High Availability 1422 function IsConnectionError($err) 1423 { 1424 switch($err) { 1425 case 378: /* buffer pool param incorrect */ 1426 case 602: /* core dump */ 1427 case 603: /* fatal error */ 1428 case 609: /* attach failed */ 1429 case 1012: /* not logged in */ 1430 case 1033: /* init or shutdown in progress */ 1431 case 1043: /* Oracle not available */ 1432 case 1089: /* immediate shutdown in progress */ 1433 case 1090: /* shutdown in progress */ 1434 case 1092: /* instance terminated */ 1435 case 3113: /* disconnect */ 1436 case 3114: /* not connected */ 1437 case 3122: /* closing window */ 1438 case 3135: /* lost contact */ 1439 case 12153: /* TNS: not connected */ 1440 case 27146: /* fatal or instance terminated */ 1441 case 28511: /* Lost RPC */ 1442 return true; 1443 } 1444 return false; 1445 } 1446 1447 // returns true or false 1448 function _close() 1449 { 1450 if (!$this->_connectionID) { 1451 return; 1452 } 1453 1454 1455 if (!$this->autoCommit) { 1456 oci_rollback($this->_connectionID); 1457 } 1458 if (count($this->_refLOBs) > 0) { 1459 foreach ($this ->_refLOBs as $key => $value) { 1460 $this->_refLOBs[$key]['LOB']->free(); 1461 unset($this->_refLOBs[$key]); 1462 } 1463 } 1464 oci_close($this->_connectionID); 1465 1466 $this->_stmt = false; 1467 $this->_connectionID = false; 1468 } 1469 1470 function MetaPrimaryKeys($table, $owner=false,$internalKey=false) 1471 { 1472 if ($internalKey) { 1473 return array('ROWID'); 1474 } 1475 1476 // tested with oracle 8.1.7 1477 $table = strtoupper($table); 1478 if ($owner) { 1479 $owner_clause = "AND ((a.OWNER = b.OWNER) AND (a.OWNER = UPPER('$owner')))"; 1480 $ptab = 'ALL_'; 1481 } else { 1482 $owner_clause = ''; 1483 $ptab = 'USER_'; 1484 } 1485 $sql = " 1486 SELECT /*+ RULE */ distinct b.column_name 1487 FROM {$ptab}CONSTRAINTS a 1488 , {$ptab}CONS_COLUMNS b 1489 WHERE ( UPPER(b.table_name) = ('$table')) 1490 AND (UPPER(a.table_name) = ('$table') and a.constraint_type = 'P') 1491 $owner_clause 1492 AND (a.constraint_name = b.constraint_name)"; 1493 1494 $rs = $this->Execute($sql); 1495 if ($rs && !$rs->EOF) { 1496 $arr = $rs->GetArray(); 1497 $a = array(); 1498 foreach($arr as $v) { 1499 $a[] = reset($v); 1500 } 1501 return $a; 1502 } 1503 else return false; 1504 } 1505 1506 /** 1507 * Returns a list of Foreign Keys associated with a specific table. 1508 * 1509 * @param string $table 1510 * @param string $owner 1511 * @param bool $upper discarded 1512 * @param bool $associative discarded 1513 * 1514 * @return string[]|false An array where keys are tables, and values are foreign keys; 1515 * false if no foreign keys could be found. 1516 */ 1517 public function metaForeignKeys($table, $owner = '', $upper = false, $associative = false) 1518 { 1519 global $ADODB_FETCH_MODE; 1520 1521 $save = $ADODB_FETCH_MODE; 1522 $ADODB_FETCH_MODE = ADODB_FETCH_NUM; 1523 $table = $this->qstr(strtoupper($table)); 1524 if (!$owner) { 1525 $owner = $this->user; 1526 $tabp = 'user_'; 1527 } else 1528 $tabp = 'all_'; 1529 1530 $owner = ' and owner='.$this->qstr(strtoupper($owner)); 1531 1532 $sql = 1533 "select constraint_name,r_owner,r_constraint_name 1534 from {$tabp}constraints 1535 where constraint_type = 'R' and table_name = $table $owner"; 1536 1537 $constraints = $this->GetArray($sql); 1538 $arr = false; 1539 foreach($constraints as $constr) { 1540 $cons = $this->qstr($constr[0]); 1541 $rowner = $this->qstr($constr[1]); 1542 $rcons = $this->qstr($constr[2]); 1543 $cols = $this->GetArray("select column_name from {$tabp}cons_columns where constraint_name=$cons $owner order by position"); 1544 $tabcol = $this->GetArray("select table_name,column_name from {$tabp}cons_columns where owner=$rowner and constraint_name=$rcons order by position"); 1545 1546 if ($cols && $tabcol) 1547 for ($i=0, $max=sizeof($cols); $i < $max; $i++) { 1548 $arr[$tabcol[$i][0]] = $cols[$i][0].'='.$tabcol[$i][1]; 1549 } 1550 } 1551 $ADODB_FETCH_MODE = $save; 1552 1553 return $arr; 1554 } 1555 1556 1557 function CharMax() 1558 { 1559 return 4000; 1560 } 1561 1562 function TextMax() 1563 { 1564 return 4000; 1565 } 1566 1567 /** 1568 * Correctly quotes a string so that all strings are escaped. 1569 * We prefix and append to the string single-quotes. 1570 * An example is $db->qstr("Don't bother"); 1571 * 1572 * @param string $s The string to quote 1573 * @param bool $magic_quotes This param is not used since 5.21.0. 1574 * It remains for backwards compatibility. 1575 * 1576 * @return string Quoted string to be sent back to database 1577 * 1578 * @noinspection PhpUnusedParameterInspection 1579 */ 1580 function qStr($s, $magic_quotes=false) 1581 { 1582 if ($this->noNullStrings && strlen($s) == 0) { 1583 $s = ' '; 1584 } 1585 if ($this->replaceQuote[0] == '\\'){ 1586 $s = str_replace('\\','\\\\',$s); 1587 } 1588 return "'" . str_replace("'", $this->replaceQuote, $s) . "'"; 1589 } 1590 1591 } 1592 1593 /*-------------------------------------------------------------------------------------- 1594 Class Name: Recordset 1595 --------------------------------------------------------------------------------------*/ 1596 1597 class ADORecordset_oci8 extends ADORecordSet { 1598 1599 var $databaseType = 'oci8'; 1600 var $bind=false; 1601 var $_fieldobjs; 1602 1603 /** @var resource Cursor reference */ 1604 var $_refcursor; 1605 1606 function __construct($queryID,$mode=false) 1607 { 1608 if ($mode === false) { 1609 global $ADODB_FETCH_MODE; 1610 $mode = $ADODB_FETCH_MODE; 1611 } 1612 switch ($mode) { 1613 case ADODB_FETCH_ASSOC: 1614 $this->fetchMode = OCI_ASSOC; 1615 break; 1616 case ADODB_FETCH_DEFAULT: 1617 case ADODB_FETCH_BOTH: 1618 $this->fetchMode = OCI_NUM + OCI_ASSOC; 1619 break; 1620 case ADODB_FETCH_NUM: 1621 default: 1622 $this->fetchMode = OCI_NUM; 1623 break; 1624 } 1625 $this->fetchMode += OCI_RETURN_NULLS + OCI_RETURN_LOBS; 1626 $this->adodbFetchMode = $mode; 1627 $this->_queryID = $queryID; 1628 } 1629 1630 /** 1631 * Overrides the core destructor method as that causes problems here 1632 * 1633 * @return void 1634 */ 1635 function __destruct() {} 1636 1637 function Init() 1638 { 1639 if ($this->_inited) { 1640 return; 1641 } 1642 1643 $this->_inited = true; 1644 if ($this->_queryID) { 1645 1646 $this->_currentRow = 0; 1647 @$this->_initrs(); 1648 if ($this->_numOfFields) { 1649 $this->EOF = !$this->_fetch(); 1650 } 1651 else $this->EOF = true; 1652 1653 /* 1654 // based on idea by Gaetano Giunta to detect unusual oracle errors 1655 // see PHPLens Issue No: 6771 1656 $err = oci_error($this->_queryID); 1657 if ($err && $this->connection->debug) { 1658 ADOConnection::outp($err); 1659 } 1660 */ 1661 1662 if (!is_array($this->fields)) { 1663 $this->_numOfRows = 0; 1664 $this->fields = array(); 1665 } 1666 } else { 1667 $this->fields = array(); 1668 $this->_numOfRows = 0; 1669 $this->_numOfFields = 0; 1670 $this->EOF = true; 1671 } 1672 } 1673 1674 function _initrs() 1675 { 1676 $this->_numOfRows = -1; 1677 $this->_numOfFields = oci_num_fields($this->_queryID); 1678 if ($this->_numOfFields>0) { 1679 $this->_fieldobjs = array(); 1680 $max = $this->_numOfFields; 1681 for ($i=0;$i<$max; $i++) $this->_fieldobjs[] = $this->_FetchField($i); 1682 } 1683 } 1684 1685 /** 1686 * Get column information in the Recordset object. 1687 * fetchField() can be used in order to obtain information about fields 1688 * in a certain query result. If the field offset isn't specified, the next 1689 * field that wasn't yet retrieved by fetchField() is retrieved 1690 * 1691 * @return object containing field information 1692 */ 1693 function _FetchField($fieldOffset = -1) 1694 { 1695 $fld = new ADOFieldObject; 1696 $fieldOffset += 1; 1697 $fld->name =oci_field_name($this->_queryID, $fieldOffset); 1698 if (ADODB_ASSOC_CASE == ADODB_ASSOC_CASE_LOWER) { 1699 $fld->name = strtolower($fld->name); 1700 } 1701 $fld->type = oci_field_type($this->_queryID, $fieldOffset); 1702 $fld->max_length = oci_field_size($this->_queryID, $fieldOffset); 1703 1704 switch($fld->type) { 1705 case 'NUMBER': 1706 $p = oci_field_precision($this->_queryID, $fieldOffset); 1707 $sc = oci_field_scale($this->_queryID, $fieldOffset); 1708 if ($p != 0 && $sc == 0) { 1709 $fld->type = 'INT'; 1710 } 1711 $fld->scale = $p; 1712 break; 1713 1714 case 'CLOB': 1715 case 'NCLOB': 1716 case 'BLOB': 1717 $fld->max_length = -1; 1718 break; 1719 } 1720 return $fld; 1721 } 1722 1723 /* For some reason, oci_field_name fails when called after _initrs() so we cache it */ 1724 function FetchField($fieldOffset = -1) 1725 { 1726 return $this->_fieldobjs[$fieldOffset]; 1727 } 1728 1729 1730 function MoveNext() 1731 { 1732 if ($this->fields = @oci_fetch_array($this->_queryID,$this->fetchMode)) { 1733 $this->_currentRow += 1; 1734 $this->_updatefields(); 1735 return true; 1736 } 1737 if (!$this->EOF) { 1738 $this->_currentRow += 1; 1739 $this->EOF = true; 1740 } 1741 return false; 1742 } 1743 1744 // Optimize SelectLimit() by using oci_fetch() 1745 function GetArrayLimit($nrows,$offset=-1) 1746 { 1747 if ($offset <= 0) { 1748 $arr = $this->GetArray($nrows); 1749 return $arr; 1750 } 1751 $arr = array(); 1752 for ($i=1; $i < $offset; $i++) { 1753 if (!@oci_fetch($this->_queryID)) { 1754 return $arr; 1755 } 1756 } 1757 1758 if (!$this->fields = @oci_fetch_array($this->_queryID,$this->fetchMode)) { 1759 return $arr; 1760 } 1761 $this->_updatefields(); 1762 $results = array(); 1763 $cnt = 0; 1764 while (!$this->EOF && $nrows != $cnt) { 1765 $results[$cnt++] = $this->fields; 1766 $this->MoveNext(); 1767 } 1768 1769 return $results; 1770 } 1771 1772 1773 // Use associative array to get fields array 1774 function Fields($colname) 1775 { 1776 if (!$this->bind) { 1777 $this->bind = array(); 1778 for ($i=0; $i < $this->_numOfFields; $i++) { 1779 $o = $this->FetchField($i); 1780 $this->bind[strtoupper($o->name)] = $i; 1781 } 1782 } 1783 1784 return $this->fields[$this->bind[strtoupper($colname)]]; 1785 } 1786 1787 1788 function _seek($row) 1789 { 1790 return false; 1791 } 1792 1793 function _fetch() 1794 { 1795 $this->fields = @oci_fetch_array($this->_queryID,$this->fetchMode); 1796 $this->_updatefields(); 1797 1798 return $this->fields; 1799 } 1800 1801 /** 1802 * close() only needs to be called if you are worried about using too much 1803 * memory while your script is running. All associated result memory for the 1804 * specified result identifier will automatically be freed. 1805 */ 1806 function _close() 1807 { 1808 if ($this->connection->_stmt === $this->_queryID) { 1809 $this->connection->_stmt = false; 1810 } 1811 if (!empty($this->_refcursor)) { 1812 oci_free_cursor($this->_refcursor); 1813 $this->_refcursor = false; 1814 } 1815 if (is_resource($this->_queryID)) 1816 @oci_free_statement($this->_queryID); 1817 $this->_queryID = false; 1818 } 1819 1820 /** 1821 * not the fastest implementation - quick and dirty - jlim 1822 * for best performance, use the actual $rs->MetaType(). 1823 * 1824 * @param mixed $t 1825 * @param int $len [optional] Length of blobsize 1826 * @param bool $fieldobj [optional][discarded] 1827 * @return str The metatype of the field 1828 */ 1829 function MetaType($t, $len=-1, $fieldobj=false) 1830 { 1831 if (is_object($t)) { 1832 $fieldobj = $t; 1833 $t = $fieldobj->type; 1834 $len = $fieldobj->max_length; 1835 } 1836 1837 $t = strtoupper($t); 1838 1839 if (array_key_exists($t,$this->connection->customActualTypes)) 1840 return $this->connection->customActualTypes[$t]; 1841 1842 switch ($t) { 1843 case 'VARCHAR': 1844 case 'VARCHAR2': 1845 case 'CHAR': 1846 case 'VARBINARY': 1847 case 'BINARY': 1848 case 'NCHAR': 1849 case 'NVARCHAR': 1850 case 'NVARCHAR2': 1851 if ($len <= $this->blobSize) { 1852 return 'C'; 1853 } 1854 1855 case 'NCLOB': 1856 case 'LONG': 1857 case 'LONG VARCHAR': 1858 case 'CLOB': 1859 return 'X'; 1860 1861 case 'LONG RAW': 1862 case 'LONG VARBINARY': 1863 case 'BLOB': 1864 return 'B'; 1865 1866 case 'DATE': 1867 return ($this->connection->datetime) ? 'T' : 'D'; 1868 1869 1870 case 'TIMESTAMP': return 'T'; 1871 1872 case 'INT': 1873 case 'SMALLINT': 1874 case 'INTEGER': 1875 return 'I'; 1876 1877 default: 1878 return ADODB_DEFAULT_METATYPE; 1879 } 1880 } 1881 } 1882 1883 class ADORecordSet_ext_oci8 extends ADORecordSet_oci8 { 1884 1885 function MoveNext() 1886 { 1887 return adodb_movenext($this); 1888 } 1889 }
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