Detect the existence of multiple shortcodes at one time via an array of strings within WordPress.

shortcodes-exist.php

<?php
/**
 * Loop through an array of shortcodes and check for their existence
 * @author Gabe Shackle <gabe@hereswhatidid.com>
 * @param  array   $shortcodes An array of shortcode strings
 * @param  boolean $match_all  Whether to check for the existence of ALL the shortcodes, or just ANY of them
 * @return mixed   The results will either be an array of the found shortcodes or boolean false
 */
function shortcodes_exist( $shortcodes = array(), $match_all = false ) {
	$found_shortcodes = array();
	foreach( $shortcodes as $shortcode ) {
		if ( shortcode_exists( $shortcode ) ) {
			$found_shortcodes[] = $shortcode;
		} else {
			if ( $match_all ) {
				return false;
			}
		}
	}
	if ( count( $found_shortcodes ) === 0 ) {
		return false;
	} else {
		return $found_shortcodes;
	}
}
$shortcodes_to_find = array(
	'gallery',
	'audio',
	'thiswontwork'
);
$find_any = shortcodes_exist( $shortcodes_to_find );
// returns array( 'gallery', 'audio' );
$find_all = shortcodes_exist( $shortcodes_to_find, true );
// returns false