Download Manager 4 is not backwards compatible with versions of WordPress before 3.6. We modified the Download Manager functions.php file to include the WP 3.6. functions it was looking for. These would have to be removed if you upgrade WordPress.
/* Patch to work in 3.5.1
* Whether the passed content contains the specified shortcode
*
* @since 3.6.0
*
* @global array $shortcode_tags
* @param string $tag
* @return boolean
*/
function has_shortcode( $content, $tag ) {
if ( shortcode_exists( $tag ) ) {
preg_match_all( ‘/’ . get_shortcode_regex() . ‘/s’, $content, $matches, PREG_SET_ORDER );
if ( empty( $matches ) )
return false;
foreach ( $matches as $shortcode ) {
if ( $tag === $shortcode[2] )
return true;
}
}
return false;
}
/*
* Patch to work in 3.5.1
* Whether a registered shortcode exists named $tag
*
* @since 3.6.0
*
* @global array $shortcode_tags
* @param string $tag
* @return boolean
*/
function shortcode_exists( $tag ) {
global $shortcode_tags;
return array_key_exists( $tag, $shortcode_tags );
}
