Definition:
function update_meta( $meta_id, $meta_key, $meta_value ) {}
Parameters
- unknown_type $meta_id
- unknown_type $meta_key: Expect Slashed
- unknown_type $meta_value: Expect Slashed
Defined actions
- update_postmeta
do_action( 'update_postmeta', $meta_id, $post_id, $meta_key, $meta_value );
- updated_postmeta
do_action( 'updated_postmeta', $meta_id, $post_id, $meta_key, $meta_value );
Source code
function update_meta( $meta_id, $meta_key, $meta_value ) { global $wpdb; $meta_key = stripslashes($meta_key); if ( is_protected_meta( $meta_key ) ) return false; if ( '' === trim( $meta_value ) ) return false; $post_id = $wpdb->get_var( $wpdb->prepare("SELECT post_id FROM $wpdb->postmeta WHERE meta_id = %d", $meta_id) ); $meta_value = maybe_serialize( stripslashes_deep( $meta_value ) ); $meta_id = (int) $meta_id; $data = compact( 'meta_key', 'meta_value' ); $where = compact( 'meta_id' ); do_action( 'update_postmeta', $meta_id, $post_id, $meta_key, $meta_value ); $rval = $wpdb->update( $wpdb->postmeta, $data, $where ); wp_cache_delete($post_id, 'post_meta'); do_action( 'updated_postmeta', $meta_id, $post_id, $meta_key, $meta_value ); return $rval; }
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