How do I capture PHP output into a variable

0 votes

I'm generating a ton of XML that is to be passed to an API as a post variable when a user click on a form button. I also want to be able to show the user the XML before hand.

The code is sorta like the following in structure:

<?php
    $lots of = "php";
?>

<xml>
    <morexml>

<?php
    while(){
?>
    <somegeneratedxml>
<?php } ?>

<lastofthexml>

<?php ?>

<html>
    <pre>
      The XML for the user to preview
    </pre>

    <form>
        <input id="xml" value="theXMLagain" />
    </form>
</html>

My XML is being generated with a few while loops and stuff. It then needs to be shown in the two places (the preview and the form value).

How do I capture the generated XML in a variable or whatever so I only have to generate it once and then just print it out as apposed to generating it inside the preview and then again inside the form value?

Nov 3, 2020 in PHP by kartik
 • 37,520 points • 1,803 views

1 answer to this question.

0 votes

Hello,

Try this:

<?php ob_start(); ?>
<xml/>
<?php $xml = ob_get_clean(); ?>
<input value="<?php echo $xml ?>" />

Hope it works!!

answered Nov 3, 2020 by Niroj
 • 82,800 points

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