Load Loop Shortcode in Header if Found in Content

couponloop-shortcode-loading.php

/**
 * Load Loop Shortcode in Header if Found in Content
 * https://wordpress.stackexchange.com/a/207749
 */
add_action( 'wp_enqueue_scripts', 'cctor_load_resources' );
function cctor_load_resources() {
       global $post, $wpdb;

       // determine whether this page contains "couponloop" shortcode
       $shortcode_found = false;
       if ( has_shortcode($post->post_content, 'couponloop') ) {
          $shortcode_found = true;
       } else if ( isset($post->ID) ) {
          $result = $wpdb->get_var( $wpdb->prepare(
            "SELECT count(*) FROM $wpdb->postmeta " .
            "WHERE post_id = %d and meta_value LIKE '%%couponloop%%'", $post->ID ) );
          $shortcode_found = ! empty( $result );
       }

       if ( $shortcode_found ) {
		   wp_enqueue_style( 'coupon_creator_css' );
       }
}