WP_Screen::add_help_tab( array $args )

User Contributed Notes

1. Skip to note 5 content

   Akira Tachibana 5 years ago

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   This is from Codex Usage.
   This example shows how you would add contextual help to an admin page you’ve created with the add_options_page() function. Here, we assume that your admin page has a slug of ‘my_admin_page’ and exists under the Options tab.

   <?php 
   add_action( 'admin_menu', 'my_admin_add_page' );
   function my_admin_add_page() {
       $my_admin_page = add_options_page( __( 'My Admin Page', 'map' ), __('My Admin Page', 'map'), 'manage_options', 'map', 'my_admin_page' );
   
       // Adds my_help_tab when my_admin_page loads
       add_action( 'load-'.$my_admin_page, 'my_admin_add_help_tab' );
   }
   
   function my_admin_add_help_tab () {
       $screen = get_current_screen();
   
       // Add my_help_tab if current screen is My Admin Page
       $screen->add_help_tab( array(
           'id'	=> 'my_help_tab',
           'title'	=> __('My Help Tab'),
           'content'	=> '<p>' . __( 'Descriptive content that will show in My Help Tab-body goes here.' ) . '</p>',
       ) );
   }
   ?>
2. Skip to note 6 content

   Akira Tachibana 5 years ago

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   This is from Codex Usage.
   Advanced Usage (from within a class)

       <?php
   /**
    * Plugin Name: Help Tab Test Case
    * Plugin URI:  http://unserkaiser.com
    * Description: Add Help Tab test case
    */
   class example_help
   {
   	public $tabs = array(
   		// The assoc key represents the ID
   		// It is NOT allowed to contain spaces
   		 'EXAMPLE' => array(
   		 	 'title'   => 'TEST ME!'
   		 	,'content' => 'FOO'
   		 )
   	);
   
   	static public function init()
   	{
   		$class = __CLASS__ ;
   		new $class;
   	}
   
   	public function __construct()
   	{
   		add_action( "load-{$GLOBALS['pagenow']}", array( $this, 'add_tabs' ), 20 );
   	}
   
   	public function add_tabs()
   	{
   		foreach ( $this->tabs as $id => $data )
   		{
   			get_current_screen()->add_help_tab( array(
   				 'id'       => $id
   				,'title'    => __( $data['title'], 'some_textdomain' )
   				// Use the content only if you want to add something
   				// static on every help tab. Example: Another title inside the tab
   				,'content'  => '<p>Some stuff that stays above every help text</p>'
   				,'callback' => array( $this, 'prepare' )
   			) );
   		}
   	}
   
   	public function prepare( $screen, $tab )
   	    {
   	    	printf( 
   			 '<p>%s</p>'
   			,__( 
   	    			 $tab['callback'][0]->tabs[ $tab['id'] ]['content']
   				,'dmb_textdomain' 
   			 )
   		);
   	}
   }
   // Always add help tabs during "load-{$GLOBALS['pagenow'}".
   // There're some edge cases, as for example on reading options screen, your
   // Help Tabs get loaded before the built in tabs. This seems to be a core error.
   add_action( 'load-post.php', array( 'example_help', 'init' ) );
   add_action( 'load-post-new.php', array( 'example_help', 'init' ) );

   Above example came out of a WPSE question.
   You can read this WPSE question about how to fix the wrong order bug without changing core code.
3. Skip to note 7 content

   Akira Tachibana 5 years ago

   You must log in to vote on the helpfulness of this noteVote results for this note: 0You must log in to vote on the helpfulness of this note

   This is from Codex Usage.
   Basic Usage.

    <?php
   $screen = get_current_screen();
   $screen->add_help_tab( array( 
      'id' => $id,            //unique id for the tab
      'title' => $title,      //unique visible title for the tab
      'content' => $content,  //actual help text
      'callback' => $callback //optional function to callback
   ) );
   ?> 
4. Skip to note 8 content

   Pratik Shrestha 8 years ago

   You must log in to vote on the helpfulness of this noteVote results for this note: -2You must log in to vote on the helpfulness of this note

   add_filter( 'contextual_help', 'my_admin_help', 5, 3 );
   function my_admin_help( $old_help, $screen_id, $screen ) {
   	// Not our screen, exit earlier
       if( 'my-admin' != $screen_id ) {
           return;
       }
   
       // Add one help tab
       $screen->add_help_tab( array(
           'id'      => 'my-admin-help',
           'title'   => esc_html__( 'My Help Tab', 'my-text-domain' ),
           'content' => '<p>' . esc_html__( 'Descriptive content that will show in My Help Tab-body goes here.', 'my-text-domain' ) . '</p>',
   		// Use 'callback' to use callback function to display tab content
       ) );
   
       // This sets the sidebar for help screen, if required
       get_current_screen()->set_help_sidebar(
           '<p><strong>' . esc_html__( 'For more information:', 'my-text-domain' ) . '</strong></p>' .
           '<p><a href="https://wordpress.org/">WordPress</a></p&gt;' .
           '<p><a href="https://wordpress.org/support/&quot; target="_blank">' . esc_html__( 'Support Forums', 'my-text-domain' ) . '</a></p>'
       );
   
       return $old_help;
   }