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1 <?php
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2
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3 /**
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4 * @file
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5 * Initiates a browser-based installation of Drupal.
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6 */
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7
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8 use Drupal\Component\Utility\OpCodeCache;
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9
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10 // Change the directory to the Drupal root.
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11 chdir('..');
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12 // Store the Drupal root path.
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13 $root_path = realpath('');
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14
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15 /**
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16 * Global flag to indicate the site is in installation mode.
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17 *
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18 * The constant is defined using define() instead of const so that PHP
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19 * versions prior to 5.3 can display proper PHP requirements instead of causing
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20 * a fatal error.
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21 */
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22 define('MAINTENANCE_MODE', 'install');
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23
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24 // Exit early if running an incompatible PHP version to avoid fatal errors.
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25 // The minimum version is specified explicitly, as DRUPAL_MINIMUM_PHP is not
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26 // yet available. It is defined in bootstrap.inc, but it is not possible to
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27 // load that file yet as it would cause a fatal error on older versions of PHP.
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28 if (version_compare(PHP_VERSION, '5.5.9') < 0) {
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29 print 'Your PHP installation is too old. Drupal requires at least PHP 5.5.9. See the <a href="https://www.drupal.org/requirements">system requirements</a> page for more information.';
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30 exit;
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31 }
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32
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33 // Initialize the autoloader.
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34 $class_loader = require_once $root_path . '/autoload.php';
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35
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36 // If OPCache is in use, ensure opcache.save_comments is enabled.
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37 if (OpCodeCache::isEnabled() && !ini_get('opcache.save_comments')) {
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38 print 'Systems with OPcache installed must have <a href="http://php.net/manual/opcache.configuration.php#ini.opcache.save-comments">opcache.save_comments</a> enabled.';
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39 exit();
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40 }
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41
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42 // Start the installer.
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43 require_once $root_path . '/core/includes/install.core.inc';
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44 install_drupal($class_loader);
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