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See Release Notes

  • 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.
<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.

/**
 * Fixture for Behat test of the max_input_vars handling for large forms.
 *
 * @package core
 * @copyright 2015 The Open University
 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

require(__DIR__ . '/../../../config.php');
require_once($CFG->libdir . '/formslib.php');

// Behat test fixture only.
defined('BEHAT_SITE_RUNNING') || die('Only available on Behat test server');

/**
 * Form for testing max_input_vars.
 *
 * @copyright 2015 The Open University
 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
class core_max_input_vars_form extends moodleform {
    /**
     * Form definition.
     */
    public function definition() {
        global $CFG, $PAGE;

        $mform =& $this->_form;

        $mform->addElement('header', 'general', '');
        $mform->addElement('hidden', 'type', $this->_customdata['type']);
        $mform->setType('type', PARAM_ALPHA);

        // This is similar to how the selects are created for the role tables,
        // without using a Moodle form element.
        $select = html_writer::select(array(13 => 'ArrayOpt13', 42 => 'ArrayOpt4', 666 => 'ArrayOpt666'),
                'arraytest[]', array(13, 42), false, array('multiple' => 'multiple', 'size' => 10));
        $mform->addElement('static', 'arraybit', $select);

        switch ($this->_customdata['control']) {
            case 'c' :
                // Create a whole stack of checkboxes.
                for ($i = 0; $i < $this->_customdata['fieldcount']; $i++) {
                    $mform->addElement('advcheckbox', 'test_c' . $i, 'Checkbox ' . $i);
                }
                break;

            case 'a' :
                // Create a very large array input type field.
                $options = array();
                $values = array();
                for ($i = 0; $i < $this->_customdata['fieldcount']; $i++) {
                    $options[$i] = 'BigArray ' . $i;
                    if ($i !== 3) {
                        $values[] = $i;
                    }
                }
                $select = html_writer::select($options,
                        'test_a[]', $values, false, array('multiple' => 'multiple', 'size' => 50));
                $mform->addElement('static', 'bigarraybit', $select);
                break;
        }

        // For the sake of it, let's have a second array.
        $select = html_writer::select(array(13 => 'Array2Opt13', 42 => 'Array2Opt4', 666 => 'Array2Opt666'),
                'array2test[]', array(13, 42), false, array('multiple' => 'multiple', 'size' => 10));
        $mform->addElement('static', 'array2bit', $select);

        $mform->addElement('submit', 'submitbutton', 'Submit here!');
    }
}

require_login();

$context = context_system::instance();

$type = optional_param('type', '', PARAM_ALPHA);

// Set up the page details.
$PAGE->set_url(new moodle_url('/lib/tests/fixtures/max_input_vars.php'));
$PAGE->set_context($context);

if ($type) {
    // Make it work regardless of max_input_vars setting on server, within reason.
    if ($type[1] === 's') {
        // Small enough to definitely fit in the area.
        $fieldcount = 10;
    } else if ($type[1] === 'm') {
        // Just under the limit (will go over for advancedcheckbox).
        $fieldcount = (int)ini_get('max_input_vars') - 100;
    } else if ($type[1] === 'e') {
        // Exactly on the PHP limit, taking into account extra form fields
        // and the double fields for checkboxes.
        if ($type[0] === 'c') {
            $fieldcount = (int)ini_get('max_input_vars') / 2 - 2;
        } else {
            $fieldcount = (int)ini_get('max_input_vars') - 11;
        }
< } else if ($type[1] === 'l') { < // Just over the limit. < $fieldcount = (int)ini_get('max_input_vars') + 100;
} $mform = new core_max_input_vars_form('max_input_vars.php', array('type' => $type, 'fieldcount' => $fieldcount, 'control' => $type[0])); if ($type[0] === 'c') { $data = array(); for ($i = 0; $i < $fieldcount; $i++) { if ($i === 3) { // Everything is set except number 3. continue; } $data['test_c' . $i] = 1; } $mform->set_data($data); } } echo $OUTPUT->header(); if ($type && ($result = $mform->get_data())) { $testc = array(); $testa = array(); foreach ($_POST as $key => $value) { $matches = array(); // Handle the 'bulk' ones separately so we can show success/fail rather // than outputting a thousand items; also makes it possible to Behat-test // without depending on specific value of max_input_vars. if (preg_match('~^test_c([0-9]+)$~', $key, $matches)) { $testc[(int)$matches[1]] = $value; } else if ($key === 'test_a') { $testa = $value; } else { // Other fields are output straight off. if (is_array($value)) { echo html_writer::div(s($key) . '=[' . s(implode(',', $value)) . ']'); } else { echo html_writer::div(s($key) . '=' . s($value)); } } } // Confirm that the bulk results are correct. switch ($type[0]) { case 'c' : $success = true; for ($i = 0; $i < $fieldcount; $i++) { if (!array_key_exists($i, $testc)) { $success = false; break; } if ($testc[$i] != ($i == 3 ? 0 : 1)) { $success = false; break; } } if (array_key_exists($fieldcount, $testc)) { $success = false; } // Check using Moodle form and _param functions too. $key = 'test_c' . ($fieldcount - 1); if (empty($result->{$key})) { $success = false; } if (optional_param($key, 0, PARAM_INT) !== 1) { $success = false; } echo html_writer::div('Bulk checkbox success: ' . ($success ? 'true' : 'false')); break; case 'a' : $success = true; for ($i = 0; $i < $fieldcount; $i++) { if ($i === 3) { if (in_array($i, $testa)) { $success = false; break; } } else { if (!in_array($i, $testa)) { $success = false; break; } } } if (in_array($fieldcount, $testa)) { $success = false; } // Check using Moodle _param function. The form does not include these // fields so it won't be in the form result. $array = optional_param_array('test_a', array(), PARAM_INT); if ($array != $testa) { $success = false; } echo html_writer::div('Bulk array success: ' . ($success ? 'true' : 'false')); break; } } else if ($type) { $mform->display(); } // Show links to each available type of test. echo html_writer::start_tag('ul'); foreach (array('c' => 'Advanced checkboxes', 'a' => 'Select options') as $control => $controlname) {
< foreach (array('s' => 'Small', 'm' => 'Below limit', 'e' => 'Exact PHP limit', < 'l' => 'Above limit') as $size => $sizename) {
> foreach (array('s' => 'Small', 'm' => 'Below limit', 'e' => 'Exact PHP limit') as $size => $sizename) {
echo html_writer::tag('li', html_writer::link('max_input_vars.php?type=' . $control . $size, $controlname . ' / ' . $sizename)); } } echo html_writer::end_tag('ul'); echo $OUTPUT->footer();