Equivalent of JS var a = b || c || d;

gistfile1.php

//JS:  var a = b || c || d;
//PHP: val($a, $b, $c, $d);
function val(&$var)
{
	$args = func_get_args();
	
	array_shift($args);
	
	foreach ($args as $arg)
	{
		if ($arg) return $var = $arg;
	}
	
	return $var = end($args);
}