摘要： apply_filters_ref_array( $tag, $args );$tag — The name of the filter hook.$args — An array of arguments to pass to filters registered for the hook.remove_filter( $tag, $function_to_remove, $priority, $accepted_args );$tag — The name of the filter hook to remove a filter from.$function_to_remove — Th 阅读全文

摘要： apply_filters( $tag, $value );$tag — The name of the filter hook.$value — The parameter passed to any filters added to the hook. The function can alsotake in any number of extraparameters to pass to filters.add_filter( $tag, $function, $priority, $accepted_args );$tag — The name of the hook you want 阅读全文

摘要： Commonly Used Action Hooks（1）plugins_loaded。一个WP插件应该在此hook做setup。It isfired after most of the WordPress files are loaded but before the pluggable functions and WordPressstarts executing anything；plugins_loaded is executed when all the user’s activated plugins have been loaded by WordPress. Itis also 阅读全文

摘要： do_action_ref_array( $tag, $args );$tag — The name of the action hook.$args — An array of arguments passed to actions registered for the hook. Generally, thiswould be an object that actions can change.< ?phpdo_action_ref_array( ‘pre_get_posts’, array( & $this ) );add_action( ‘pre_get_posts’, 阅读全文

摘要： do_action( $tag, $arg = ‘’ );$tag — The name of the action hook.$arg — Value(s) passed to registered actions. It looks like a single parameter, but this isn ’ talways the case. Action hooks have the option to pass any number of parameters or noparameters at all. You need to check the WordPress sourc 阅读全文

摘要： Deactivate Is Not UninstallTwo uninstall methods:(1) Uninstall.php:< ?php// If uninstall not called from WordPress exitif( !defined( ‘WP_UNINSTALL_PLUGIN’ ) )exit ();// Delete option from options tabledelete_option( ‘boj_myplugin_options’ );//remove any additional options and custom tables? >( 阅读全文

摘要： Deactivation:Deactivation时会触发register_deactivation_hook()。register_ deactivation_hook( $file, $function )$file - (string) (required) — Path to the primary plugin fi le$function - (string) (required) — The function to be executed when the plugin is activated例如：< ?phpregister_deactivation_hook( __F 阅读全文

摘要： options激活时可以设置option：< ?phpregister_activation_hook( __FILE__, ‘boj_install’ );function boj_install() {$boj_myplugin_options = array(‘view’ = > ‘grid’,‘food’ = > ‘bacon’,‘mode’ = > ‘zombie’);update_option( ‘boj_myplugin_options’, $boj_myplugin_options );}? > 阅读全文

摘要： plugin激活插件激活时，plugin activation function将会被触发。register_activation_hook()。主要用于设置默认options、检测版本兼容等。register_activation_hook( $file, $function );$file - (string) (required) — Path to the primary plugin file$function - (string) (required) — The function to be executed when the plugin is activated例如：< 阅读全文

摘要： PathsLocal path:plugin_dir_path( __FILE__ );plugin_dir_path( __FILE__ ) .’js/scripts.js’;URL path:plugins_url(),Full plugins directory URL, example:http://example.com/wp-content/pluginsincludes_url(),http://example.com/wp-includescontent_url(), http://example.com/wp-contentadmin_url(), http://exampl 阅读全文

摘要： Sanity practices:（1）命名前缀。plugin范围内，变量、函数名、文件名加一个唯一前缀。（2）文件组织。至少应该有两个文件：主要的php文件和一个uninstall.php。主要的php可以细分为更多的小文件，便于update和性能。（3）目录结构。example：primary.phpuninstall.php/js/css/includes/imagesHeader：< ?php/*Plugin Name: My PluginPlugin URI: http://example.com/wordpress-plugins/my-pluginDescription: 阅读全文