using variable inside if(in_array(THIS_SCRIPT, xxxx

[LifesGreatestGift]

I cannot figure out why I cannot get this variable to register inside this array.

Here is my code

PHP Code:

$thisScript_input = $vbulletin->options['customscript'];
$thisScript_array = explode(",", trim($thisScript_input, ","));
$thisScript_string = "'" . implode("','", $thisScript_array) . "'"; 
echo $thisScript_string;

        if (in_array(THIS_SCRIPT, array($thisScript_string)))
        { 
            echo "YES";
        } 


I have an input field that accepts script names delimited by commas, so in the input field it would look like this

private,showthread,customscript

when i echo $thisScript_string it shows

'private','showthread','customscript' which is the format that the conditional should accept, but it doesnt work.

It does work if i manually put it in like this

PHP Code:

        if (in_array(THIS_SCRIPT, array('private','showthread','customscript')))
        { 
            echo "YES"; 
        } 


I want it to be able to accept that variable. Is this possible?