Can I use a php variable in a javascript function?

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  • phpuser123
    New Member
    • Dec 2009
    • 108
    #1

    Can I use a php variable in a javascript function?

    I want to use a php variable in my javascript.
    Code:
    <script type='text/javascript'>
function display_alert(x){
alert(x);
}
</script>
<body>
<?php $var1='phpvariable';

echo "<button onclick='display_alert($var1)'>Diaplay alert</button>";
?>
</body>
    I am not able to execute such a script..
    I need to pass a php variable to a javascript function .Is that possible ?
    If so,hw cn i implement this?
    Thanks in adv
    With regards
    phpuser123
    Last edited by Dormilich; Apr 13 '10, 08:09 PM. Reason: Please use [code] tags when posting code
    Tags: javascript, php
    • Dormilich
      Recognized Expert Expert
      • Aug 2008
      • 8694
      #2
      you need to pass the variable as JavaScript string, that is, surrounded by " (or ')

        Comment

        • phpuser123
          New Member
          • Dec 2009
          • 108
          #3
          I passed the variable within quotes as u mentioned..I got $var1 instead of phpvariable ...

          Code:
          <script type='text/javascript'>
   function display_alert(x){
  alert(x);
  }
  </script>
  <body>
  <?php $var1='phpvariable';
 $var2='display_alert("$var1")';

 echo "<button onclick=$var2>Display alert</button>";
 ?>
 </body>
          Is that what u exactly u mean ?
          To some extent it worked bt I gt the name of my variable instead of the value it holds..
          Last edited by Dormilich; Apr 15 '10, 05:57 AM. Reason: Please use [code] tags when posting code

            Comment

            • chathura86
              New Member
              • May 2007
              • 227
              #4
              Code:
              <script type='text/javascript'>
function display_alert(x)
{
	alert(x);
}
</script>
<body>
<?php 

$var1='phpvariable';
$var2='display_alert("' . $var1 . '")';

echo "<button onclick=$var2>Display alert</button>";
?>
</body>
              try this

              Regards

                Comment

                • phpuser123
                  New Member
                  • Dec 2009
                  • 108
                  #5
                  Originally posted by chathura86
                  Code:
                  <script type='text/javascript'>
function display_alert(x)
{
	alert(x);
}
</script>
<body>
<?php 

$var1='phpvariable';
$var2='display_alert("' . $var1 . '")';

echo "<button onclick=$var2>Display alert</button>";
?>
</body>
                  try this

                  Regards
                  Thanks that worked out..

                    Comment

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