call a javascript from php and store the return in a variable

Question

I am wondering if there is any way to call a javascrip function from php and store the return value of the function in php variable.

Something like:

<?php
  var p = test("something");
  echo p;
?>
<script>
 function test(elm){
     return elm+" anotherthing";
 }
</script>

not everything, but answer to these type of questions have already been answered/closed many times, i try to get in there before less par users pop in the answers ;p... — Lawrence Cherone, Feb 14 '14 at 20:00

score 1 · Answer 1 · answered Feb 14 '14 at 19:57

1

You can't. Javascript is executed on the client and PHP on the server. By the time your PHP code runs the Javascript function doesn't even exist yet.

answered Feb 14 '14 at 19:57

Crono

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score 1 · Accepted Answer · answered Feb 14 '14 at 19:59

1

You cannot call and evaluate a javascript function from php code. You could however make a request (e.g. AJAX) from the javascript test() function to your php code and read the value.

answered Feb 14 '14 at 19:59

OK11

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call a javascript from php and store the return in a variable

2 Answers2