How do you append a dynamic script with php variable inside and render the variable?

Question

I am trying to place a stripe checkout button on a form with a dynamic amount to be charged based on the user's selection. The checkout button is rendered from Javascript as described here.

I am adding the script dynamically like so and used the answer to the following question to execute it.

    var script = document.createElement("script");
    script.setAttribute('src','https://checkout.stripe.com/v2/checkout.js');
    script.setAttribute('class','stripe-button');
    script.setAttribute('data-key',"<?php echo $stripe['publishable_key']; ?>");
    script.setAttribute('data-amount',parseFloat(jQuery('#totalCost').html())*100);
    script.setAttribute('data-description','Monthly subscription for ' + package_enabled);

    if(!document._write) document._write = document.write;
    document.write = function (str) {
        document.getElementById('paymentForm').innerHTML += str;
    };
    document.getElementById('paymentForm').appendChild(script);

The issue I am having is that the script does not render the php variable in this line

script.setAttribute('data-key',"<?php echo $stripe['publishable_key']; ?>");

and just prints it out as string like so

data-key="&lt;?php echo $stripe['publishable_key']; ?&gt;"

As a hack, I can enter the key directly but I'd rather not. Is there any other solution?

If you view the page source, do you see the php code in there or the output from the php in there? — Latheesan, May 19 '14 at 15:04
That file would need to be parsed by PHP. If the extension is .js or .html then probably not. — AbraCadaver, May 19 '14 at 15:04
this one should get you moving - http://stackoverflow.com/questions/23740548/how-to-pass-variables-and-data-from-php-to-javascript — EvilEpidemic, May 19 '14 at 15:06
Yes @LatheesanKanes I see php code, like this data-key="<?php echo $stripe['publishable_key']; ?>" — user972616, May 19 '14 at 15:34

How do you append a dynamic script with php variable inside and render the variable?

0 Answers0