wordpress函数did_action()用法示例

did_action( string $tag )

Retrieve the number of times an action is fired.

描述

参数

$tag

(string)
(Required)
The name of the action hook.

返回值

(int) The number of times action hook $tag is fired.

源代码

File: wp-includes/plugin.php

function did_action($tag) {
	global $wp_actions;

	if ( ! isset( $wp_actions[ $tag ] ) )
		return 0;

	return $wp_actions[$tag];
}

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相关函数

Used By

• wp-includes/class-wp-editor.php:
  _WP_Editors::enqueue_default_editor()
• wp-includes/class-wp-customize-manager.php:
  WP_Customize_Manager::_publish_changeset_values()
• wp-includes/class-wp-customize-manager.php:
  WP_Customize_Manager::import_theme_starter_content()
• wp-includes/theme.php:
  _wp_customize_publish_changeset()
• wp-includes/class-wp-site.php:
  WP_Site::__get()
• wp-includes/class-wp-site.php:
  WP_Site::__isset()
• wp-includes/theme.php:
  add_theme_support()
• wp-includes/theme.php:
  _remove_theme_support()
• wp-includes/general-template.php:
  wp_admin_css()
• wp-includes/load.php:
  wp_load_translations_early()
• wp-includes/functions.php:
  _default_wp_die_handler()
• wp-includes/taxonomy.php:
  create_initial_taxonomies()
• wp-includes/media.php:
  wp_enqueue_media()
• wp-includes/embed.php:
  wp_oembed_add_provider()
• wp-includes/embed.php:
  wp_oembed_remove_provider()
• wp-includes/media.php:
  wp_video_shortcode()
• wp-includes/media.php:
  wp_audio_shortcode()
• wp-includes/class-wp-rewrite.php:
  WP_Rewrite::wp_rewrite_rules()
• wp-includes/class-wp-rewrite.php:
  WP_Rewrite::flush_rules()
• wp-includes/ms-blogs.php:
  switch_to_blog()
• wp-includes/ms-blogs.php:
  restore_current_blog()
• wp-includes/wp-db.php:
  wpdb::check_connection()
• wp-includes/wp-db.php:
  wpdb::select()
• wp-includes/widgets.php:
  wp_register_sidebar_widget()
• wp-includes/widgets.php:
  wp_register_widget_control()
• wp-includes/widgets.php:
  _register_widget_form_callback()
• wp-includes/class-wp-customize-widgets.php:
  WP_Customize_Widgets::call_widget_update()
• wp-includes/script-loader.php:
  print_head_scripts()
• wp-includes/script-loader.php:
  wp_print_head_scripts()
• wp-includes/script-loader.php:
  script_concat_settings()
• wp-includes/script-loader.php:
  wp_default_scripts()

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   Contributed by Codex

   Example

   Using did_action() function to make sure custom meta field is only added during the first run since it can run multiple times.

   
   function my_sticky_option() 
   {
   	global $post;
   
   	// if the post is a custom post type and only during the first execution of the action quick_edit_custom_box
   	if ( $post->post_type == 'custom_post_type' && did_action( 'quick_edit_custom_box' ) === 1 ) 
   	{ 
   ?>
   
   	<fieldset class="inline-edit-col-right">
   		<div class="inline-edit-col">
   			<label class="alignleft">
   				<input type="checkbox" name="sticky" value="sticky" />
   				<span class="checkbox-title">
   					<?php _e( 'Featured (sticky)', 'textdomain_string' ); ?>
   				</span>
   			</label>
   		</div>
   	</fieldset>
   <?php
   	} // endif;
   }
   // add the sticky option to the quick edit area
   add_action( 'quick_edit_custom_box', 'my_sticky_option' );