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Call Javascript function from php

I have done many attempts with posts and examples - but I'm unable to understand how to do this. I have this function in the head of my php file:

 .....
 <script type = "text/javascript" language="javascript">
 function agicol() {
 scheduler.clearAll();
 var idname$ = $idencol; 
 scheduler.load("ret_l.php?connector=true&dhx_filter[IDCol]="+idname,ドル"json");
 }
 </script> 
 </head>

And in the body, I use a variable like so:

 <body bgcolor="#C0DFFD" onLoad="init();">
 <?php
 if(isset($_GET['id']))
 {
 $idencol = $_GET['id'];
 echo "<script>alert($idencol);</script>";
 // Alert works properly
 // $idencol contains id sended
 }
 ?>

So, I should call function agicol(), and pass getted id $idencol.

Can someone tell me how?

Thanks in advance

Answer*

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  • I know there are many method to obtain this result, however is it just impossible to call this function from php code? Commented Nov 24, 2015 at 16:25
  • @Jayelef — Since the PHP executes on a different computer to the JavaScript, yes, it is impossible. You have to deliver the JavaScript to the client and get the client to execute it. Your current approach delivers the JavaScript to the client and then throws away the <head> containing half the code you wanted to execute. Commented Nov 24, 2015 at 16:35
  • Thanks for your explantion @Quentin Commented Nov 24, 2015 at 16:36

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