how to go to previsous page and do function

[Krista]

Hi guys,

i don't know how to write when i click a submit button, i can do a
function and go back to previous page.

eg, when i click "No" button, the system will do deletefunction(), and
go back to previous page. I only know if the button is
<input type =\"button\" name=\"submit\" value=\"No\"
OnClick=\"javascript:history.go(-1)\" ><br> i can go to previous page.
But how can i do deletefunction()??
thx

krista

[Pedro Graca]

Krista wrote:

eg, when i click "No" button, the system will do deletefunction(), and
go back to previous page. I only know if the button is
<input type =\"button\" name=\"submit\" value=\"No\"
OnClick=\"javascript:history.go(-1)\" ><br> i can go to previous page.
But how can i do deletefunction()??

Going back with JavaScript does not submit to the server (I think), and
therefore you can't execute anything.

Instead make that a normal submit button and process it with php,
calling deletefunction() and redirecting to some page on your site:

<input type="submit" name="submit" value="No"/>

and your PHP script

<?php
// ...
if ($_POST['submit'] == 'No') {
deletefunction();
$redir = 'http://www.yoursite.com/index.html';
header('Location: ' . $redir);
// some browsers may not follow the redirect
exit("Redirected: <a href=\"$redir\">$redir</a>.");
}
// ...
?>
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