did_action( string $hook_name )

使用示例

• 示例1

  实例

  使用did_action()函数确保自定义meta字段仅在第一次运行期间添加，因为它可以运行多次。

  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' );