$str = 'test\folder\name test\folder\name';
	if (preg_match('/(.*)\\\\folder\\\\(.*)/', $str) == 1) {
		$temp = preg_replace('/(.*)\\\\folder\\\\(.*)/', '${1}\\\\replaced\\\\${2}', $str);
		echo "match replaced: $temp"; // Returns: "match replaced: test\folder\name test\replaced\name", how do I make it return "test\replaced\name test\replaced\name" ?

	} else {
		echo "no match";
	}