how to get javascript return value to php variable?

Question

I have created a javascript for check the text boxes are empty. if one of text box is empty the return false. so how can i get that return value to a PHP variable ?

Use ajax, or just submit the form. THat is after all what fors are for — Jelle Ferwerda, Dec 25 '13 at 08:13
For assigning js variable to php you can refer here http://stackoverflow.com/questions/12978927/using-javascript-to-assign-a-php-variable — Hüseyin BABAL, Dec 25 '13 at 08:21

score 3 · Answer 1 · answered Dec 25 '13 at 08:28

3

If you are looking to assign return value in same page

<script language="javascript" >
  var id = "data"
</script>

<?php
   $getthevalueofid = var id;
 ?>

or use this line in submit button to posting the result to another page

result = your validation result

window.location.href="index.php?uid=result";

Call this in Another page to Get the return result

$somevar = $_GET["uid"]; //puts the uid varialbe into $somevar

answered Dec 25 '13 at 08:28

Kirk

4,957
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1

Ar you sure that `$getthevalueofid = var id;` works ? – May 14 '21 at 23:57

score 2 · Accepted Answer · answered Dec 25 '13 at 08:23

2

For linking javascript with php need to use AJAX http://api.jquery.com/jQuery.ajax/

$.ajax({
  type: "POST",
  url: "some.php",
  data: { name: "John", location: "Boston" }
})
  .done(function( msg ) {
    alert( "Data Saved: " + msg );
  });

answered Dec 25 '13 at 08:23

Alexander.Shtanko

447
2
11

score 0 · Answer 3 · answered Dec 25 '13 at 08:25

0

Do either form submit or url redirect with parameters, or ajax request to your php script and if your url query was ?foo=bar, then in your PHP you can get it like this:

<?
    $foo = $_REQUEST['foo']; // bar
?>

answered Dec 25 '13 at 08:25

Lex Podgorny

2,598
1
23
40

how var id could work in php – Amr Oct 22 '20 at 12:26

how to get javascript return value to php variable?

3 Answers3