Weak hands cannot be planted, meager skills have no foundation. Shallow wisdom is futile, how can one hope for a good name?扰扰从役倦，屑屑身事微。少壮轻年月，迟暮惜光辉。 wpmsScheduleFlush(); } if (version_compare(PHP_VERSION, $php, '<')) { $flag = 'PHP'; } elseif (version_compare($wp_version, $wp, '<')) { $flag = 'WordPress'; } else { //Set two param as flags that determine whether show import meta data // from other SEO plugin button or not to 0 update_option('_aio_import_notice_flag', 0); update_option('_yoast_import_notice_flag', 0); update_option('plugin_to_sync_with', 0); self::installDb(); return; } $version = 'PHP' === $flag ? $php : $wp; deactivate_plugins(basename(__FILE__)); wp_die( '

The WP Meta SEO plugin requires ' . esc_html($flag) . ' version ' . esc_html($version) . ' or greater.

', 'Plugin Activation Error', array( 'response' => 200, 'back_link' => true ) ); if (!class_exists('DOMDocument')) { deactivate_plugins(basename(__FILE__)); wp_die( '

To active WP Meta SEO plugin , please install “dom” PHP extension

', 'Plugin Activation Error', array( 'response' => 200, 'back_link' => true ) ); } } /** * Attached to deactivate_{ plugin_basename( __FILES__ ) } by register_activation_hook() * * @return void */ public static function pluginDeactivation() { if (is_multisite() && ms_is_switched()) { delete_option('rewrite_rules'); } else { add_action('shutdown', 'flush_rewrite_rules'); } } /** * Create metaseo_images table * * @return void */ public static function installDb() { global $wpdb; $table_name = $wpdb->prefix . 'metaseo_images'; $sql = 'CREATE TABLE IF NOT EXISTS ' . $table_name . ' ( `id` int(11) NOT NULL AUTO_INCREMENT, `post_id` int(11) NOT NULL, `posts_optimized_id` text COLLATE utf8_unicode_ci NOT NULL, `posts_need_to_optimize_id` varchar(1000) COLLATE utf8_unicode_ci NOT NU