long story short - you can't

you can only call a function in javascript or some other client-side
scripting language like that, and you would use the onSubmit="" attribute of
the <form> tag.

by the sounds of what you want to do - i would say you would do something
like;

1. load values from db and display in a form (with a submit button, and
perhaps a hidden field of some sort)
2. make your changes on the form and submit it
3. the form posts BACK TO THE SAME PAGE
4. on that page, you check for either the hidden variable (more reliable),
or the variable for the submit button (which gets created when the user
clicks it)
5. do whatever you want with the changes made (UPDATE?), then display the
form again, now with the new values in it.

HTH

Beau


// -----Original Message-----
// From: Gavin Amm [mailto:[EMAIL PROTECTED]]
// Sent: Thursday, 5 December 2002 1:31 PM
// To: Php-Db (E-mail)
// Subject: [PHP-DB] calling function on submit instead of 
// going to a new
// script
// 
// 
// Hi,
// 
// I'm using some form fields on a page to pick up existing 
// data from a MySQL
// database, make any changes, and update the database when i 
// hit "submit".
// I've picked up the data ok, now i want to process the update...
// 
// How do i call a function(?) on the same page rather than use 
// another page
// through action="somescript.php"?
// what i'd like to do (in seudo-code) is:
// 
// <form action="myfunction()">
//   ...
//   <input type="submit">
// </form>
// myfunction(){
//   process update & send user back to homepage
// }
// 
// 
// cheers,
// Gav
// 
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