[Resolved] Calling Javascript function from PHP

aelma

I'm calling a javascript function from php.

The code of the function is supose to do a submit of the posted page; If I post a plane page without variables (addinstit.php) it's works well, but if I add other parameters such php variables it doesn't work. :queasy:

I'll show you the code:

<select name="estatus" size="1" onChange="resubmit(<?php echo "$curid"; ?>)" tabindex="5">

/ The variable $curid has a value wich depend the content of the page in the submit /

The javascript function is:

</script>

Thx for help

Ana Elisa

leatherback

Hi,

It is a bit unclear what you are trying to do.

You do realize you cannot call a javascript from PhP. PhP 'lives' on the server, and javascript on the cl;ients PC.

You can check in the output HTML wether the PhP variable has been echo-ed in your onchange command.

paulnaj

Hi,

Originally posted by aelma
The code of the function is supose to do a submit of the posted page; If I post a plane page without variables (addinstit.php) it's works well, but if I add other parameters such php variables it doesn't work.

The resubmit() function seems to expect an id (a number maybe)to be passed to it, not a page name (addinstit.php).

Otherwise, I think you're gonna to have to try and explain again.

Paul 🙂

aelma

Well

I wanna resubmit a page when a select change.

With this code:

and the function like this:
<script language="JavaScript">
function resubmit()
{
document.myform.action="editar_insti.php";
document.myform.submit();
}
</script>

Everything works with the code above.

But, I wanna that the function resubmit() send me to the page editar_insti.php?e=true&id=curid

Where "curid" must obtain its value from a PHP variable.

How can I pass the value to the function?, or How can I send the value of the PHP variable $curid to the function?

Any idea is useful.

Thx for help.

Ana Elisa

leatherback

-- IF the $curied has a value upon loading the page -

then the method you used should be ok. What does not work ? So.. Where is the actual problem? Submitting the page? Getting the variable in the onchange() or/...?

Kudose

Use this as your form page:

<form name="myform" action="editar_insti.php" method="POST">
  <select name="estatus" onChange="myform.submit();">
    <option value="hi">Hello</option>
    <option value="bye">Goodbye</option>
  </select>
</form>

And on editar_insti.php you would recieve estatus and other form variables like so:

$estatus = $_POST['estatus'];

I personally dont think you should do it this way, becuase as soon as something changes, your form will submit, whether they have finished filling out all fields or not.

Why not just use a regular submit button?

aelma

The $curid variable in
<select name="estatus" size="1" onChange="resubmit(<?php echo "$nagcurid"; ?> )" tabindex="5"> has a value;

But, when I use the resubmit function:

</script>

The page submited doesn't show me the correct values, because the $_GET[id] variable that come from the result of the link editar_insti.php?e=true&id=curid doesn't has value.

Do I have something wrong in this code:

or with this function?:

Kudose

document.myform.action="editar_insti.php?e=true&id=" + <?php echo $curid; ?>;

hagen00

I've tested this and it does alert the correct value...I'm just gonna dump the code here. I'm sure you can make sense of it. If not, post a message and i'll explain.

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Untitled Document</title>

<body>

<?php

$curid=12;

?>
<form name="myform">

<?php
echo "
<select name='estatus' onChange='resubmit($curid);'>";
?>
<option>1</option>
<option>2</option>

</select>

</form>

</body>
</html>

aelma

It work good for me.

Thx