WordPress function to check if the current post is a custom post type

Simply paste this code into your functions.php file:

 function is_custom_post_type() { 	global $  wp_query; 		 	$  post_types = get_post_types(array('public'   => true,'_builtin' => false),'names','and'); 	 	foreach ($  post_types  as $  post_type ) { 		if (get_post_type($  post_type->ID) == get_post_type($  wp_query->post->ID)) { 			return true; 		} else { 			return false; 		} 	} }

Once done, you can use the function as shown below. Please note that the function can be used outside the loop:

 if (is_custom_post_type()) {     //Current post is a custom post type }

Thanks to Jonas Ethomsen for the function!

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