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do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
This hook occurs 3 times in this file.
| Line | Code |
|---|---|
| 609 | * @param string $to Path to old WordPress installation. |
| 610 | * @return WP_Error|null WP_Error on failure, null on success. |
| 611 | */ |
| 612 | function update_core($from, $to) { |
| 613 | global $wp_filesystem, $_old_files, $_new_bundled_files, $wpdb; |
| 614 | |
| 615 | @set_time_limit( 300 ); |
| 616 | |
| 617 | // Sanity check the unzipped distribution |
| 618 | apply_filters( 'update_feedback', __('Verifying the unpacked files…') ); |
| 619 | $distro = ''; |
| 620 | $roots = array( '/wordpress/', '/wordpress-mu/' ); |
| 621 | foreach ( $roots as $root ) { |
| 622 | if ( $wp_filesystem->exists( $from . $root . 'readme.html' ) && $wp_filesystem->exists( $from . $root . 'wp-includes/version.php' ) ) { |
| 623 | $distro = $root; |
| 624 | break; |
| 625 | } |
| 626 | } |
| 627 | if ( ! $distro ) { |
| Line | Code |
| 654 | $wp_filesystem->delete($from, true); |
| 655 | |
| 656 | if ( !$mysql_compat && !$php_compat ) |
| 657 | return new WP_Error( 'php_mysql_not_compatible', sprintf( __('The update cannot be installed because WordPress %1$s requires PHP version %2$s or higher and MySQL version %3$s or higher. You are running PHP version %4$s and MySQL version %5$s.'), $wp_version, $required_php_version, $required_mysql_version, $php_version, $mysql_version ) ); |
| 658 | elseif ( !$php_compat ) |
| 659 | return new WP_Error( 'php_not_compatible', sprintf( __('The update cannot be installed because WordPress %1$s requires PHP version %2$s or higher. You are running version %3$s.'), $wp_version, $required_php_version, $php_version ) ); |
| 660 | elseif ( !$mysql_compat ) |
| 661 | return new WP_Error( 'mysql_not_compatible', sprintf( __('The update cannot be installed because WordPress %1$s requires MySQL version %2$s or higher. You are running version %3$s.'), $wp_version, $required_mysql_version, $mysql_version ) ); |
| 662 | |
| 663 | apply_filters('update_feedback', __('Installing the latest version…')); |
| 664 | |
| 665 | // Create maintenance file to signal that we are upgrading |
| 666 | $maintenance_string = '<?php $upgrading = ' . time() . '; ?>'; |
| 667 | $maintenance_file = $to . '.maintenance'; |
| 668 | $wp_filesystem->delete($maintenance_file); |
| 669 | $wp_filesystem->put_contents($maintenance_file, $maintenance_string, FS_CHMOD_FILE); |
| 670 | |
| 671 | // Copy new versions of WP files into place. |
| 672 | $result = _copy_dir($from . $distro, $to, array('wp-content') ); |
| Line | Code |
| 737 | // Remove old files |
| 738 | foreach ( $_old_files as $old_file ) { |
| 739 | $old_file = $to . $old_file; |
| 740 | if ( !$wp_filesystem->exists($old_file) ) |
| 741 | continue; |
| 742 | $wp_filesystem->delete($old_file, true); |
| 743 | } |
| 744 | |
| 745 | // Upgrade DB with separate request |
| 746 | apply_filters('update_feedback', __('Upgrading database…')); |
| 747 | $db_upgrade_url = admin_url('upgrade.php?step=upgrade_db'); |
| 748 | wp_remote_post($db_upgrade_url, array('timeout' => 60)); |
| 749 | |
| 750 | // Remove working directory |
| 751 | $wp_filesystem->delete($from, true); |
| 752 | |
| 753 | // Force refresh of update information |
| 754 | if ( function_exists('delete_site_transient') ) |
| 755 | delete_site_transient('update_core'); |