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Editorial Team
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Asked: 2026-06-09T16:46:20+00:00

Possible Duplicate: How can I use a JavaScript variable as a PHP variable? I

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Possible Duplicate:
How can I use a JavaScript variable as a PHP variable?

I need to use javascipt variables in PHP, how can I do that?

eg: 

<script>
var abc = 'this is text';
</script>

How can I read variable abc in php?

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1 Answer

  1. Editorial Team

    One way of doing it is to make use of a hidden text/input box.

    <input type="text" style="display:none" id="hiddenVal" />

    In the Javascript assign the variable to the input box.

    <script>
function loadValues()
{
var abc = 'this is text';
document.getElementById("hiddenVal").value = abc;
//alert(document.getElementById("hiddenVal").value);
}
</script>

<body onload="loadValues();">

<form action="processing.php" method="post">
  <input type="text" style="display:none" id="hiddenVal" />
  <input type="submit" name="submit" id="submit" value="Submit" />
</form>
</body>

    This is one method to allow you to use Javascript variable and post it to the backend. Alternatively if you want to display these values just remove the

    style=”display:none”

    on the control.

    Now after the post occurred one should be able to pick up the variable using processing.php

    <?php
echo $_POST["hiddenVal"];
?>

    Very dirty way of doing this but does the trick.

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