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Developer Documentation
- Bug fixes for general core bugs in 3.10.x will end 8 November 2021 (12 months).
- Bug fixes for security issues in 3.10.x will end 9 May 2022 (18 months).
- PHP version: minimum PHP 7.2.0 Note: minimum PHP version has increased since Moodle 3.8. PHP 7.3.x and 7.4.x are supported too.
/lib/adodb/drivers/ -> adodb-mysql.inc.php (source)
Differences Between: [Versions 310 and 311] [Versions 310 and 400]
1 <?php 2 /* 3 @version v5.20.16 12-Jan-2020 4 @copyright (c) 2000-2013 John Lim (jlim#natsoft.com). All rights reserved. 5 @copyright (c) 2014 Damien Regad, Mark Newnham and the ADOdb community 6 Released under both BSD license and Lesser GPL library license. 7 Whenever there is any discrepancy between the two licenses, 8 the BSD license will take precedence. 9 Set tabs to 8. 10 11 This driver only supports the original non-transactional MySQL driver. It 12 is deprected in PHP version 5.5 and removed in PHP version 7. It is deprecated 13 as of ADOdb version 5.20.0. Use the mysqli driver instead, which supports both 14 transactional and non-transactional updates 15 16 Requires mysql client. Works on Windows and Unix. 17 18 28 Feb 2001: MetaColumns bug fix - suggested by Freek Dijkstra (phpeverywhere@macfreek.com) 19 */ 20 21 // security - hide paths 22 if (!defined('ADODB_DIR')) die(); 23 24 if (! defined("_ADODB_MYSQL_LAYER")) { 25 define("_ADODB_MYSQL_LAYER", 1 ); 26 27 class ADODB_mysql extends ADOConnection { 28 var $databaseType = 'mysql'; 29 var $dataProvider = 'mysql'; 30 var $hasInsertID = true; 31 var $hasAffectedRows = true; 32 var $metaTablesSQL = "SELECT 33 TABLE_NAME, 34 CASE WHEN TABLE_TYPE = 'VIEW' THEN 'V' ELSE 'T' END 35 FROM INFORMATION_SCHEMA.TABLES 36 WHERE TABLE_SCHEMA="; 37 var $metaColumnsSQL = "SHOW COLUMNS FROM `%s`"; 38 var $fmtTimeStamp = "'Y-m-d H:i:s'"; 39 var $hasLimit = true; 40 var $hasMoveFirst = true; 41 var $hasGenID = true; 42 var $isoDates = true; // accepts dates in ISO format 43 var $sysDate = 'CURDATE()'; 44 var $sysTimeStamp = 'NOW()'; 45 var $hasTransactions = false; 46 var $forceNewConnect = false; 47 var $poorAffectedRows = true; 48 var $clientFlags = 0; 49 var $charSet = ''; 50 var $substr = "substring"; 51 var $nameQuote = '`'; /// string to use to quote identifiers and names 52 var $compat323 = false; // true if compat with mysql 3.23 53 54 function __construct() 55 { 56 if (defined('ADODB_EXTENSION')) $this->rsPrefix .= 'ext_'; 57 } 58 59 60 // SetCharSet - switch the client encoding 61 function SetCharSet($charset_name) 62 { 63 if (!function_exists('mysql_set_charset')) { 64 return false; 65 } 66 67 if ($this->charSet !== $charset_name) { 68 $ok = @mysql_set_charset($charset_name,$this->_connectionID); 69 if ($ok) { 70 $this->charSet = $charset_name; 71 return true; 72 } 73 return false; 74 } 75 return true; 76 } 77 78 function ServerInfo() 79 { 80 $arr['description'] = ADOConnection::GetOne("select version()"); 81 $arr['version'] = ADOConnection::_findvers($arr['description']); 82 return $arr; 83 } 84 85 function IfNull( $field, $ifNull ) 86 { 87 return " IFNULL($field, $ifNull) "; // if MySQL 88 } 89 90 function MetaProcedures($NamePattern = false, $catalog = null, $schemaPattern = null) 91 { 92 // save old fetch mode 93 global $ADODB_FETCH_MODE; 94 95 $false = false; 96 $save = $ADODB_FETCH_MODE; 97 $ADODB_FETCH_MODE = ADODB_FETCH_NUM; 98 99 if ($this->fetchMode !== FALSE) { 100 $savem = $this->SetFetchMode(FALSE); 101 } 102 103 $procedures = array (); 104 105 // get index details 106 107 $likepattern = ''; 108 if ($NamePattern) { 109 $likepattern = " LIKE '".$NamePattern."'"; 110 } 111 $rs = $this->Execute('SHOW PROCEDURE STATUS'.$likepattern); 112 if (is_object($rs)) { 113 114 // parse index data into array 115 while ($row = $rs->FetchRow()) { 116 $procedures[$row[1]] = array( 117 'type' => 'PROCEDURE', 118 'catalog' => '', 119 'schema' => '', 120 'remarks' => $row[7], 121 ); 122 } 123 } 124 125 $rs = $this->Execute('SHOW FUNCTION STATUS'.$likepattern); 126 if (is_object($rs)) { 127 // parse index data into array 128 while ($row = $rs->FetchRow()) { 129 $procedures[$row[1]] = array( 130 'type' => 'FUNCTION', 131 'catalog' => '', 132 'schema' => '', 133 'remarks' => $row[7] 134 ); 135 } 136 } 137 138 // restore fetchmode 139 if (isset($savem)) { 140 $this->SetFetchMode($savem); 141 } 142 $ADODB_FETCH_MODE = $save; 143 144 return $procedures; 145 } 146 147 /** 148 * Retrieves a list of tables based on given criteria 149 * 150 * @param string $ttype Table type = 'TABLE', 'VIEW' or false=both (default) 151 * @param string $showSchema schema name, false = current schema (default) 152 * @param string $mask filters the table by name 153 * 154 * @return array list of tables 155 */ 156 function MetaTables($ttype=false,$showSchema=false,$mask=false) 157 { 158 $save = $this->metaTablesSQL; 159 if ($showSchema && is_string($showSchema)) { 160 $this->metaTablesSQL .= $this->qstr($showSchema); 161 } else { 162 $this->metaTablesSQL .= "schema()"; 163 } 164 165 if ($mask) { 166 $mask = $this->qstr($mask); 167 $this->metaTablesSQL .= " AND table_name LIKE $mask"; 168 } 169 $ret = ADOConnection::MetaTables($ttype,$showSchema); 170 171 $this->metaTablesSQL = $save; 172 return $ret; 173 } 174 175 176 function MetaIndexes ($table, $primary = FALSE, $owner=false) 177 { 178 // save old fetch mode 179 global $ADODB_FETCH_MODE; 180 181 $false = false; 182 $save = $ADODB_FETCH_MODE; 183 $ADODB_FETCH_MODE = ADODB_FETCH_NUM; 184 if ($this->fetchMode !== FALSE) { 185 $savem = $this->SetFetchMode(FALSE); 186 } 187 188 // get index details 189 $rs = $this->Execute(sprintf('SHOW INDEX FROM %s',$table)); 190 191 // restore fetchmode 192 if (isset($savem)) { 193 $this->SetFetchMode($savem); 194 } 195 $ADODB_FETCH_MODE = $save; 196 197 if (!is_object($rs)) { 198 return $false; 199 } 200 201 $indexes = array (); 202 203 // parse index data into array 204 while ($row = $rs->FetchRow()) { 205 if ($primary == FALSE AND $row[2] == 'PRIMARY') { 206 continue; 207 } 208 209 if (!isset($indexes[$row[2]])) { 210 $indexes[$row[2]] = array( 211 'unique' => ($row[1] == 0), 212 'columns' => array() 213 ); 214 } 215 216 $indexes[$row[2]]['columns'][$row[3] - 1] = $row[4]; 217 } 218 219 // sort columns by order in the index 220 foreach ( array_keys ($indexes) as $index ) 221 { 222 ksort ($indexes[$index]['columns']); 223 } 224 225 return $indexes; 226 } 227 228 229 // if magic quotes disabled, use mysql_real_escape_string() 230 function qstr($s,$magic_quotes=false) 231 { 232 if (is_null($s)) return 'NULL'; 233 if (!$magic_quotes) { 234 235 if (ADODB_PHPVER >= 0x4300) { 236 if (is_resource($this->_connectionID)) 237 return "'".mysql_real_escape_string($s,$this->_connectionID)."'"; 238 } 239 if ($this->replaceQuote[0] == '\\'){ 240 $s = adodb_str_replace(array('\\',"\0"),array('\\\\',"\\\0"),$s); 241 } 242 return "'".str_replace("'",$this->replaceQuote,$s)."'"; 243 } 244 245 // undo magic quotes for " 246 $s = str_replace('\\"','"',$s); 247 return "'$s'"; 248 } 249 250 function _insertid() 251 { 252 return ADOConnection::GetOne('SELECT LAST_INSERT_ID()'); 253 //return mysql_insert_id($this->_connectionID); 254 } 255 256 function GetOne($sql,$inputarr=false) 257 { 258 global $ADODB_GETONE_EOF; 259 if ($this->compat323 == false && strncasecmp($sql,'sele',4) == 0) { 260 $rs = $this->SelectLimit($sql,1,-1,$inputarr); 261 if ($rs) { 262 $rs->Close(); 263 if ($rs->EOF) return $ADODB_GETONE_EOF; 264 return reset($rs->fields); 265 } 266 } else { 267 return ADOConnection::GetOne($sql,$inputarr); 268 } 269 return false; 270 } 271 272 function BeginTrans() 273 { 274 if ($this->debug) ADOConnection::outp("Transactions not supported in 'mysql' driver. Use 'mysqlt' or 'mysqli' driver"); 275 } 276 277 function _affectedrows() 278 { 279 return mysql_affected_rows($this->_connectionID); 280 } 281 282 // See http://www.mysql.com/doc/M/i/Miscellaneous_functions.html 283 // Reference on Last_Insert_ID on the recommended way to simulate sequences 284 var $_genIDSQL = "update %s set id=LAST_INSERT_ID(id+1);"; 285 var $_genSeqSQL = "create table if not exists %s (id int not null)"; 286 var $_genSeqCountSQL = "select count(*) from %s"; 287 var $_genSeq2SQL = "insert into %s values (%s)"; 288 var $_dropSeqSQL = "drop table if exists %s"; 289 290 function CreateSequence($seqname='adodbseq',$startID=1) 291 { 292 if (empty($this->_genSeqSQL)) return false; 293 $u = strtoupper($seqname); 294 295 $ok = $this->Execute(sprintf($this->_genSeqSQL,$seqname)); 296 if (!$ok) return false; 297 return $this->Execute(sprintf($this->_genSeq2SQL,$seqname,$startID-1)); 298 } 299 300 301 function GenID($seqname='adodbseq',$startID=1) 302 { 303 // post-nuke sets hasGenID to false 304 if (!$this->hasGenID) return false; 305 306 $savelog = $this->_logsql; 307 $this->_logsql = false; 308 $getnext = sprintf($this->_genIDSQL,$seqname); 309 $holdtransOK = $this->_transOK; // save the current status 310 $rs = @$this->Execute($getnext); 311 if (!$rs) { 312 if ($holdtransOK) $this->_transOK = true; //if the status was ok before reset 313 $u = strtoupper($seqname); 314 $this->Execute(sprintf($this->_genSeqSQL,$seqname)); 315 $cnt = $this->GetOne(sprintf($this->_genSeqCountSQL,$seqname)); 316 if (!$cnt) $this->Execute(sprintf($this->_genSeq2SQL,$seqname,$startID-1)); 317 $rs = $this->Execute($getnext); 318 } 319 320 if ($rs) { 321 $this->genID = mysql_insert_id($this->_connectionID); 322 $rs->Close(); 323 } else 324 $this->genID = 0; 325 326 $this->_logsql = $savelog; 327 return $this->genID; 328 } 329 330 function MetaDatabases() 331 { 332 $qid = mysql_list_dbs($this->_connectionID); 333 $arr = array(); 334 $i = 0; 335 $max = mysql_num_rows($qid); 336 while ($i < $max) { 337 $db = mysql_tablename($qid,$i); 338 if ($db != 'mysql') $arr[] = $db; 339 $i += 1; 340 } 341 return $arr; 342 } 343 344 345 // Format date column in sql string given an input format that understands Y M D 346 function SQLDate($fmt, $col=false) 347 { 348 if (!$col) $col = $this->sysTimeStamp; 349 $s = 'DATE_FORMAT('.$col.",'"; 350 $concat = false; 351 $len = strlen($fmt); 352 for ($i=0; $i < $len; $i++) { 353 $ch = $fmt[$i]; 354 switch($ch) { 355 356 default: 357 if ($ch == '\\') { 358 $i++; 359 $ch = substr($fmt,$i,1); 360 } 361 /** FALL THROUGH */ 362 case '-': 363 case '/': 364 $s .= $ch; 365 break; 366 367 case 'Y': 368 case 'y': 369 $s .= '%Y'; 370 break; 371 case 'M': 372 $s .= '%b'; 373 break; 374 375 case 'm': 376 $s .= '%m'; 377 break; 378 case 'D': 379 case 'd': 380 $s .= '%d'; 381 break; 382 383 case 'Q': 384 case 'q': 385 $s .= "'),Quarter($col)"; 386 387 if ($len > $i+1) $s .= ",DATE_FORMAT($col,'"; 388 else $s .= ",('"; 389 $concat = true; 390 break; 391 392 case 'H': 393 $s .= '%H'; 394 break; 395 396 case 'h': 397 $s .= '%I'; 398 break; 399 400 case 'i': 401 $s .= '%i'; 402 break; 403 404 case 's': 405 $s .= '%s'; 406 break; 407 408 case 'a': 409 case 'A': 410 $s .= '%p'; 411 break; 412 413 case 'w': 414 $s .= '%w'; 415 break; 416 417 case 'W': 418 $s .= '%U'; 419 break; 420 421 case 'l': 422 $s .= '%W'; 423 break; 424 } 425 } 426 $s.="')"; 427 if ($concat) $s = "CONCAT($s)"; 428 return $s; 429 } 430 431 432 // returns concatenated string 433 // much easier to run "mysqld --ansi" or "mysqld --sql-mode=PIPES_AS_CONCAT" and use || operator 434 function Concat() 435 { 436 $s = ""; 437 $arr = func_get_args(); 438 439 // suggestion by andrew005@mnogo.ru 440 $s = implode(',',$arr); 441 if (strlen($s) > 0) return "CONCAT($s)"; 442 else return ''; 443 } 444 445 function OffsetDate($dayFraction,$date=false) 446 { 447 if (!$date) $date = $this->sysDate; 448 449 $fraction = $dayFraction * 24 * 3600; 450 return '('. $date . ' + INTERVAL ' . $fraction.' SECOND)'; 451 452 // return "from_unixtime(unix_timestamp($date)+$fraction)"; 453 } 454 455 // returns true or false 456 function _connect($argHostname, $argUsername, $argPassword, $argDatabasename) 457 { 458 if (!empty($this->port)) $argHostname .= ":".$this->port; 459 460 if (ADODB_PHPVER >= 0x4300) 461 $this->_connectionID = mysql_connect($argHostname,$argUsername,$argPassword, 462 $this->forceNewConnect,$this->clientFlags); 463 else if (ADODB_PHPVER >= 0x4200) 464 $this->_connectionID = mysql_connect($argHostname,$argUsername,$argPassword, 465 $this->forceNewConnect); 466 else 467 $this->_connectionID = mysql_connect($argHostname,$argUsername,$argPassword); 468 469 if ($this->_connectionID === false) return false; 470 if ($argDatabasename) return $this->SelectDB($argDatabasename); 471 return true; 472 } 473 474 // returns true or false 475 function _pconnect($argHostname, $argUsername, $argPassword, $argDatabasename) 476 { 477 if (!empty($this->port)) $argHostname .= ":".$this->port; 478 479 if (ADODB_PHPVER >= 0x4300) 480 $this->_connectionID = mysql_pconnect($argHostname,$argUsername,$argPassword,$this->clientFlags); 481 else 482 $this->_connectionID = mysql_pconnect($argHostname,$argUsername,$argPassword); 483 if ($this->_connectionID === false) return false; 484 if ($this->autoRollback) $this->RollbackTrans(); 485 if ($argDatabasename) return $this->SelectDB($argDatabasename); 486 return true; 487 } 488 489 function _nconnect($argHostname, $argUsername, $argPassword, $argDatabasename) 490 { 491 $this->forceNewConnect = true; 492 return $this->_connect($argHostname, $argUsername, $argPassword, $argDatabasename); 493 } 494 495 function MetaColumns($table, $normalize=true) 496 { 497 $this->_findschema($table,$schema); 498 if ($schema) { 499 $dbName = $this->database; 500 $this->SelectDB($schema); 501 } 502 global $ADODB_FETCH_MODE; 503 $save = $ADODB_FETCH_MODE; 504 $ADODB_FETCH_MODE = ADODB_FETCH_NUM; 505 506 if ($this->fetchMode !== false) $savem = $this->SetFetchMode(false); 507 $rs = $this->Execute(sprintf($this->metaColumnsSQL,$table)); 508 509 if ($schema) { 510 $this->SelectDB($dbName); 511 } 512 513 if (isset($savem)) $this->SetFetchMode($savem); 514 $ADODB_FETCH_MODE = $save; 515 if (!is_object($rs)) { 516 $false = false; 517 return $false; 518 } 519 520 $retarr = array(); 521 while (!$rs->EOF){ 522 $fld = new ADOFieldObject(); 523 $fld->name = $rs->fields[0]; 524 $type = $rs->fields[1]; 525 526 // split type into type(length): 527 $fld->scale = null; 528 if (preg_match("/^(.+)\((\d+),(\d+)/", $type, $query_array)) { 529 $fld->type = $query_array[1]; 530 $fld->max_length = is_numeric($query_array[2]) ? $query_array[2] : -1; 531 $fld->scale = is_numeric($query_array[3]) ? $query_array[3] : -1; 532 } elseif (preg_match("/^(.+)\((\d+)/", $type, $query_array)) { 533 $fld->type = $query_array[1]; 534 $fld->max_length = is_numeric($query_array[2]) ? $query_array[2] : -1; 535 } elseif (preg_match("/^(enum)\((.*)\)$/i", $type, $query_array)) { 536 $fld->type = $query_array[1]; 537 $arr = explode(",",$query_array[2]); 538 $fld->enums = $arr; 539 $zlen = max(array_map("strlen",$arr)) - 2; // PHP >= 4.0.6 540 $fld->max_length = ($zlen > 0) ? $zlen : 1; 541 } else { 542 $fld->type = $type; 543 $fld->max_length = -1; 544 } 545 $fld->not_null = ($rs->fields[2] != 'YES'); 546 $fld->primary_key = ($rs->fields[3] == 'PRI'); 547 $fld->auto_increment = (strpos($rs->fields[5], 'auto_increment') !== false); 548 $fld->binary = (strpos($type,'blob') !== false || strpos($type,'binary') !== false); 549 $fld->unsigned = (strpos($type,'unsigned') !== false); 550 $fld->zerofill = (strpos($type,'zerofill') !== false); 551 552 if (!$fld->binary) { 553 $d = $rs->fields[4]; 554 if ($d != '' && $d != 'NULL') { 555 $fld->has_default = true; 556 $fld->default_value = $d; 557 } else { 558 $fld->has_default = false; 559 } 560 } 561 562 if ($save == ADODB_FETCH_NUM) { 563 $retarr[] = $fld; 564 } else { 565 $retarr[strtoupper($fld->name)] = $fld; 566 } 567 $rs->MoveNext(); 568 } 569 570 $rs->Close(); 571 return $retarr; 572 } 573 574 // returns true or false 575 function SelectDB($dbName) 576 { 577 $this->database = $dbName; 578 $this->databaseName = $dbName; # obsolete, retained for compat with older adodb versions 579 if ($this->_connectionID) { 580 return @mysql_select_db($dbName,$this->_connectionID); 581 } 582 else return false; 583 } 584 585 // parameters use PostgreSQL convention, not MySQL 586 function SelectLimit($sql,$nrows=-1,$offset=-1,$inputarr=false,$secs=0) 587 { 588 $nrows = (int) $nrows; 589 $offset = (int) $offset; 590 $offsetStr =($offset>=0) ? ((integer)$offset)."," : ''; 591 // jason judge, see http://phplens.com/lens/lensforum/msgs.php?id=9220 592 if ($nrows < 0) $nrows = '18446744073709551615'; 593 594 if ($secs) 595 $rs = $this->CacheExecute($secs,$sql." LIMIT $offsetStr".((integer)$nrows),$inputarr); 596 else 597 $rs = $this->Execute($sql." LIMIT $offsetStr".((integer)$nrows),$inputarr); 598 return $rs; 599 } 600 601 // returns queryID or false 602 function _query($sql,$inputarr=false) 603 { 604 605 return mysql_query($sql,$this->_connectionID); 606 /* 607 global $ADODB_COUNTRECS; 608 if($ADODB_COUNTRECS) 609 return mysql_query($sql,$this->_connectionID); 610 else 611 return @mysql_unbuffered_query($sql,$this->_connectionID); // requires PHP >= 4.0.6 612 */ 613 } 614 615 /* Returns: the last error message from previous database operation */ 616 function ErrorMsg() 617 { 618 619 if ($this->_logsql) return $this->_errorMsg; 620 if (empty($this->_connectionID)) $this->_errorMsg = @mysql_error(); 621 else $this->_errorMsg = @mysql_error($this->_connectionID); 622 return $this->_errorMsg; 623 } 624 625 /* Returns: the last error number from previous database operation */ 626 function ErrorNo() 627 { 628 if ($this->_logsql) return $this->_errorCode; 629 if (empty($this->_connectionID)) return @mysql_errno(); 630 else return @mysql_errno($this->_connectionID); 631 } 632 633 // returns true or false 634 function _close() 635 { 636 @mysql_close($this->_connectionID); 637 638 $this->charSet = ''; 639 $this->_connectionID = false; 640 } 641 642 643 /* 644 * Maximum size of C field 645 */ 646 function CharMax() 647 { 648 return 255; 649 } 650 651 /* 652 * Maximum size of X field 653 */ 654 function TextMax() 655 { 656 return 4294967295; 657 } 658 659 // "Innox - Juan Carlos Gonzalez" <jgonzalez#innox.com.mx> 660 function MetaForeignKeys( $table, $owner = FALSE, $upper = FALSE, $associative = FALSE ) 661 { 662 global $ADODB_FETCH_MODE; 663 if ($ADODB_FETCH_MODE == ADODB_FETCH_ASSOC || $this->fetchMode == ADODB_FETCH_ASSOC) $associative = true; 664 665 if ( !empty($owner) ) { 666 $table = "$owner.$table"; 667 } 668 $a_create_table = $this->getRow(sprintf('SHOW CREATE TABLE %s', $table)); 669 if ($associative) { 670 $create_sql = isset($a_create_table["Create Table"]) ? $a_create_table["Create Table"] : $a_create_table["Create View"]; 671 } else { 672 $create_sql = $a_create_table[1]; 673 } 674 675 $matches = array(); 676 677 if (!preg_match_all("/FOREIGN KEY \(`(.*?)`\) REFERENCES `(.*?)` \(`(.*?)`\)/", $create_sql, $matches)) return false; 678 $foreign_keys = array(); 679 $num_keys = count($matches[0]); 680 for ( $i = 0; $i < $num_keys; $i ++ ) { 681 $my_field = explode('`, `', $matches[1][$i]); 682 $ref_table = $matches[2][$i]; 683 $ref_field = explode('`, `', $matches[3][$i]); 684 685 if ( $upper ) { 686 $ref_table = strtoupper($ref_table); 687 } 688 689 // see https://sourceforge.net/p/adodb/bugs/100/ 690 if (!isset($foreign_keys[$ref_table])) { 691 $foreign_keys[$ref_table] = array(); 692 } 693 $num_fields = count($my_field); 694 for ( $j = 0; $j < $num_fields; $j ++ ) { 695 if ( $associative ) { 696 $foreign_keys[$ref_table][$ref_field[$j]] = $my_field[$j]; 697 } else { 698 $foreign_keys[$ref_table][] = "{$my_field[$j]}={$ref_field[$j]}"; 699 } 700 } 701 } 702 703 return $foreign_keys; 704 } 705 706 707 } 708 709 /*-------------------------------------------------------------------------------------- 710 Class Name: Recordset 711 --------------------------------------------------------------------------------------*/ 712 713 714 class ADORecordSet_mysql extends ADORecordSet{ 715 716 var $databaseType = "mysql"; 717 var $canSeek = true; 718 719 function __construct($queryID,$mode=false) 720 { 721 if ($mode === false) { 722 global $ADODB_FETCH_MODE; 723 $mode = $ADODB_FETCH_MODE; 724 } 725 switch ($mode) 726 { 727 case ADODB_FETCH_NUM: $this->fetchMode = MYSQL_NUM; break; 728 case ADODB_FETCH_ASSOC:$this->fetchMode = MYSQL_ASSOC; break; 729 case ADODB_FETCH_DEFAULT: 730 case ADODB_FETCH_BOTH: 731 default: 732 $this->fetchMode = MYSQL_BOTH; break; 733 } 734 $this->adodbFetchMode = $mode; 735 parent::__construct($queryID); 736 } 737 738 function _initrs() 739 { 740 //GLOBAL $ADODB_COUNTRECS; 741 // $this->_numOfRows = ($ADODB_COUNTRECS) ? @mysql_num_rows($this->_queryID):-1; 742 $this->_numOfRows = @mysql_num_rows($this->_queryID); 743 $this->_numOfFields = @mysql_num_fields($this->_queryID); 744 } 745 746 function FetchField($fieldOffset = -1) 747 { 748 if ($fieldOffset != -1) { 749 $o = @mysql_fetch_field($this->_queryID, $fieldOffset); 750 $f = @mysql_field_flags($this->_queryID,$fieldOffset); 751 if ($o) $o->max_length = @mysql_field_len($this->_queryID,$fieldOffset); // suggested by: Jim Nicholson (jnich#att.com) 752 //$o->max_length = -1; // mysql returns the max length less spaces -- so it is unrealiable 753 if ($o) $o->binary = (strpos($f,'binary')!== false); 754 } 755 else { /* The $fieldOffset argument is not provided thus its -1 */ 756 $o = @mysql_fetch_field($this->_queryID); 757 //if ($o) $o->max_length = @mysql_field_len($this->_queryID); // suggested by: Jim Nicholson (jnich#att.com) 758 $o->max_length = -1; // mysql returns the max length less spaces -- so it is unrealiable 759 } 760 761 return $o; 762 } 763 764 function GetRowAssoc($upper = ADODB_ASSOC_CASE) 765 { 766 if ($this->fetchMode == MYSQL_ASSOC && $upper == ADODB_ASSOC_CASE_LOWER) { 767 $row = $this->fields; 768 } 769 else { 770 $row = ADORecordSet::GetRowAssoc($upper); 771 } 772 return $row; 773 } 774 775 /* Use associative array to get fields array */ 776 function Fields($colname) 777 { 778 // added @ by "Michael William Miller" <mille562@pilot.msu.edu> 779 if ($this->fetchMode != MYSQL_NUM) return @$this->fields[$colname]; 780 781 if (!$this->bind) { 782 $this->bind = array(); 783 for ($i=0; $i < $this->_numOfFields; $i++) { 784 $o = $this->FetchField($i); 785 $this->bind[strtoupper($o->name)] = $i; 786 } 787 } 788 return $this->fields[$this->bind[strtoupper($colname)]]; 789 } 790 791 function _seek($row) 792 { 793 if ($this->_numOfRows == 0) return false; 794 return @mysql_data_seek($this->_queryID,$row); 795 } 796 797 function MoveNext() 798 { 799 //return adodb_movenext($this); 800 //if (defined('ADODB_EXTENSION')) return adodb_movenext($this); 801 if (@$this->fields = mysql_fetch_array($this->_queryID,$this->fetchMode)) { 802 $this->_updatefields(); 803 $this->_currentRow += 1; 804 return true; 805 } 806 if (!$this->EOF) { 807 $this->_currentRow += 1; 808 $this->EOF = true; 809 } 810 return false; 811 } 812 813 function _fetch() 814 { 815 $this->fields = @mysql_fetch_array($this->_queryID,$this->fetchMode); 816 $this->_updatefields(); 817 return is_array($this->fields); 818 } 819 820 function _close() { 821 @mysql_free_result($this->_queryID); 822 $this->_queryID = false; 823 } 824 825 function MetaType($t,$len=-1,$fieldobj=false) 826 { 827 if (is_object($t)) { 828 $fieldobj = $t; 829 $t = $fieldobj->type; 830 $len = $fieldobj->max_length; 831 } 832 833 $len = -1; // mysql max_length is not accurate 834 switch (strtoupper($t)) { 835 case 'STRING': 836 case 'CHAR': 837 case 'VARCHAR': 838 case 'TINYBLOB': 839 case 'TINYTEXT': 840 case 'ENUM': 841 case 'SET': 842 if ($len <= $this->blobSize) return 'C'; 843 844 case 'TEXT': 845 case 'LONGTEXT': 846 case 'MEDIUMTEXT': 847 return 'X'; 848 849 // php_mysql extension always returns 'blob' even if 'text' 850 // so we have to check whether binary... 851 case 'IMAGE': 852 case 'LONGBLOB': 853 case 'BLOB': 854 case 'MEDIUMBLOB': 855 case 'BINARY': 856 return !empty($fieldobj->binary) ? 'B' : 'X'; 857 858 case 'YEAR': 859 case 'DATE': return 'D'; 860 861 case 'TIME': 862 case 'DATETIME': 863 case 'TIMESTAMP': return 'T'; 864 865 case 'INT': 866 case 'INTEGER': 867 case 'BIGINT': 868 case 'TINYINT': 869 case 'MEDIUMINT': 870 case 'SMALLINT': 871 872 if (!empty($fieldobj->primary_key)) return 'R'; 873 else return 'I'; 874 875 default: return 'N'; 876 } 877 } 878 879 } 880 881 class ADORecordSet_ext_mysql extends ADORecordSet_mysql { 882 function __construct($queryID,$mode=false) 883 { 884 parent::__construct($queryID,$mode); 885 } 886 887 function MoveNext() 888 { 889 return @adodb_movenext($this); 890 } 891 } 892 893 }
title
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title
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title
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