has_shortcode()
Whether the passed content contains the specified shortcode
Used By: get_post_galleries()
1 time — 0.000014 sec (very fast) | 50000 times — 0.03 sec (speed of light) | PHP 7.0.8, WP 4.6.1
No Hooks.
Return
true|false
. Whether the passed content contains the given shortcode.
Usage
has_shortcode( $content, $tag );
- $content(string) (required)
- Content to search for shortcodes.
- $tag(string) (required)
- Shortcode tag to check.
Examples
#1 Сheck if there are any gallery in post
$content = 'This is some text, (possibly passed in via $post->post_content). It contains a shortcode: [gallery].'; if( has_shortcode( $content, 'gallery' ) ) { // [gallery] is in the passed text. }
#2 Selective script connection, based on the presence of a shortcode in the post content
Connect the javascript (custom-script) only if the gallery shortcode is found in the post content:
add_action( 'wp_enqueue_scripts', 'custom_shortcode_scripts' ); function custom_shortcode_scripts() { global $post; $has_gallery = $post && has_shortcode( $post->post_content, 'gallery' ); if( $has_gallery ) { wp_enqueue_script( 'custom-script'); } }
#3 Redirect to specific page for not logged in user for specific shortcode
Redirect to 'login' page if [only_loggedin_users]
short-code presents in post content.
add_action( 'template_redirect', 'wp_kama_wordpress_doc_head', 5 ); function wp_kama_wordpress_doc_head() { global $post; if( is_user_logged_in() ){ return; } $do_redirect = $post && has_shortcode( $post->post_content, 'only_loggedin_users' ); if ( $do_redirect ) { $page = get_page_by_title( 'login' ); wp_redirect( get_permalink( $page->ID ) ); exit; } }
Notes
- Global. Array. $shortcode_tags
Changelog
Since 3.6.0 | Introduced. |
has_shortcode() has shortcode code WP 6.7.1
function has_shortcode( $content, $tag ) { if ( ! str_contains( $content, '[' ) ) { return false; } if ( shortcode_exists( $tag ) ) { preg_match_all( '/' . get_shortcode_regex() . '/', $content, $matches, PREG_SET_ORDER ); if ( empty( $matches ) ) { return false; } foreach ( $matches as $shortcode ) { if ( $tag === $shortcode[2] ) { return true; } elseif ( ! empty( $shortcode[5] ) && has_shortcode( $shortcode[5], $tag ) ) { return true; } } } return false; }