Javascript command inserted by php

[Arbu 0]

I'm using this code

 <?php if (isset($_POST["json"])) : ?>
loadfile('<?php echo $_POST["json"] ?>');  
 <?php endif; ?>

to insert a command into my scrjavascript script and it appears like this:

loadfile('{
	...
	...
}');  

But I get a message for the loadfile line "Uncaught SyntaxError: Invalid or unexpected token". I can't see anything wrong. Why am I getting this error?

[Ingolme 1,027]

It is probably that there is a quotation mark in the JSON contents.

[Arbu 0]

5 hours ago, Ingolme said:

It is probably that there is a quotation mark in the JSON contents.

Yes, there are loads.

It seems that if I remove the single quotes around the php command the error goes away. I don't actually understand why they were there in the first place.