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77 lines
3.1 KiB
77 lines
3.1 KiB
2 years ago
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<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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// MOODLE_INTERNAL check intentionally missing to allow this to be used more widely!
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/**
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* A set of PHP-compatible convenience functions to check Moodle minimum PHP version in
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* a unified place.
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*
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* PLEASE NOTE: This file is made to be both php-version compatible and without requirement on
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* any moodle functions or installation so it can be used in installer or incompatible PHP versions.
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*
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* @package core
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* @copyright 2017 Dan Poltawski <dan@moodle.com>
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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/**
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* Require our minimum php version or halt execution if requirement not met.
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* @return void Execution is halted if version is not met.
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*/
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function moodle_require_minimum_php_version() {
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// PLEASE NOTE THIS FUNCTION MUST BE COMPATIBLE WITH OLD UNSUPPORTED VERSIONS OF PHP!
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moodle_minimum_php_version_is_met(true);
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}
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/**
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* Tests the current PHP version against Moodle's minimum requirement. When requirement
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* is not met returns false or halts execution depending $haltexecution param.
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*
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* @param bool $haltexecution Should execution be halted when requirement not met? Defaults to false.
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* @return bool returns true if requirement is met (false if not)
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*/
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function moodle_minimum_php_version_is_met($haltexecution = false) {
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// PLEASE NOTE THIS FUNCTION MUST BE COMPATIBLE WITH OLD UNSUPPORTED VERSIONS OF PHP.
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// Do not use modern php features or Moodle convenience functions (e.g. localised strings).
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$minimumversion = '7.1.0';
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$moodlerequirementchanged = '3.7';
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if (version_compare(PHP_VERSION, $minimumversion) < 0) {
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if ($haltexecution) {
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$error = "Moodle ${moodlerequirementchanged} or later requires at least PHP ${minimumversion} "
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. "(currently using version " . PHP_VERSION .").\n"
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. "Some servers may have multiple PHP versions installed, are you using the correct executable?\n";
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// Our CLI scripts define CLI_SCRIPT before running this test, so make use of
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// to send error on STDERR.
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if (defined('CLI_SCRIPT') && defined('STDERR')) {
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fwrite(STDERR, $error);
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} else {
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echo $error;
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}
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exit(1);
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} else {
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return false;
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}
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}
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return true;
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}
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// DO NOT ADD EXTRA FUNCTIONS TO THIS FILE!!
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// This file must be functioning on all versions of PHP, extra functions belong elsewhere.
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