how to assign php value to javascript variable?

Question

I am using the following code:

       <?php  
         $id = $_GET['id'];
         echo $id; 
            var java_id= <?php echo $id; ?> ;
             alert(java_id);


    </script>

The value doesn't alert. What is the mistake?

Thank you!

Personally I don't see the edge between server side and client side. — VisioN, Feb 12 '13 at 11:53
possible duplicate of [Passing a php value to javascript](http://stackoverflow.com/questions/9828819/passing-a-php-value-to-javascript) — BeRecursive, Feb 12 '13 at 12:15

score 0 · Answer 1 · answered Feb 12 '13 at 11:53

0

Maybe try just this:

<script>
         // More java code here I am guessing from your example...
         var java_id= <?php echo $_GET['id']; ?> ;
         alert(java_id);
</script>

answered Feb 12 '13 at 11:53

Laurence

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score 0 · Answer 2 · edited Jan 13 '15 at 23:35

0

<?php  
  $id = $_GET['id'];
?>

<script>
  var java_id= <?php echo $id; ?> ;
  alert(java_id);        
</script>

Close properly, your php and javascript code, those are two different language.

edited Jan 13 '15 at 23:35

gsamaras

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answered Feb 12 '13 at 11:53

Sudip Pal

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score 0 · Accepted Answer · answered Feb 12 '13 at 12:05

if you are writing your code on a .php file then javascript variables need to be enclosed within tag and there you can use php variables directly by assinging variable in your case like var java_id= ""; inside script tag... however if you are trying to directly access php variable in your .js file then you need to create global javascript variable before including your .js file...

how to assign php value to javascript variable?

3 Answers3