has_shortcode( string $content, string $tag ): bool

User Contributed Notes

1. Skip to note 4 content

   Codex 10 years ago

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   Enqueue some script when some post uses some shortcode.
   Note: has_shortcode() can use a lot of resources if scanning a lot of content.

   /** * Enqueue the wpdocs-script if the wpdocs-shortcode is being used */ function wpdocs_shortcode_scripts() {	global $post;	if ( is_a( $post, 'WP_Post' ) && has_shortcode( $post->post_content, 'wpdocs-shortcode') ) {	wp_enqueue_script( 'wpdocs-script');	} } add_action( 'wp_enqueue_scripts', 'wpdocs_shortcode_scripts');

   • Instead of the `global $post` which requires the `is_a($post, ‘WP_Post’)` check, simply using `get_the_content() ` works fine too.

     Alec Rust 4 years ago
2. Skip to note 5 content

   Ahir Hemant 4 years ago

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   Simple Example
   Redirect to specific page for not logged in user for specific shortcode

   function wpdocs_wordpress_doc_head() {	global $post;	if ( has_shortcode( $post->post_content, 'only_loggedin_users' ) ) {	if ( ! is_user_logged_in() ) {	$page = get_page_by_title('login');	wp_redirect( get_permalink( $page->ID ) );	exit;	}	} } add_action( 'template_redirect', 'wpdocs_wordpress_doc_head', 5 );
3. Skip to note 6 content

   Codex 10 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

   Simple Example
   Note: has_shortcode() can use a lot of resources if scanning a lot of content.

   $content = 'This is some text, (perhaps pulled via $post->post_content). It has a shortcode.'; if ( has_shortcode( $content, 'gallery' ) ) {	// The content has a short code, so this check returned true. }