Passing parameter with double quotes

$string = "this is a 'valid' string.";
$string = 'this is a \'valid\' string.';
$string = 'this is a "valid" string.';
$string = "this is a \"valid\" string.";
$valid = "valid";
$string = "this is a '".$valid."' string.";
$string = 'this is a \''.$valid.'\' string.';
$string = 'this is a "'.$valid.'" string.';
$string = "this is a \"".$valid."\" string.";
$string = "this is a '$valid' string"; //as Rocket said
$string = 'this is NOT a "$valid" string'; //Works only in double quotes
$string = "this is a '{$row['valid']}' string"; //as Rocket said

function showPopup() { console.log(arguments); }

<a href="javascript:void(0);" target="_self" 
    onclick="return showPopup('CRUISE  ','ANOTHER &quot; company&quot;','123456','user@directbiller.com');">
    Link
</a>

fn:replace(fn:replace(account.compName, "\"", """), "\'", "\\\'")