User Validation PHP + JavaScript

[victordeassis]

Hi guys!

 

I've been working on a login form and I have some problems to validate the input data, I need to consist if the login and password fields aren't with spaces or no allowed characters, for this I've been used JavaScript for client-side validation, but if the fields are Ok, I need to call my php function to see if the user and pass are on mySQL database. I don't know how to "call" the php after the JavaScript validation. If someone could help me I will be thankful.

 

 

[niche]

Javascript inapproriate for validation because a user can turnoff their JS.

 

<?php

some code

?>

 

is how you "call" php.

 

Sounds like you should complete the php tutorials:

 

http://www.w3schools.com/php/default.asp

Edited August 13, 2014 by niche

[davej]

Your Javascript code can call Php with Ajax.

 

http://www.w3schools.com/ajax/ajax_aspphp.asp

[dsonesuk]

Validate and sanitize data USING PHP from form first, before checking through database, then use javascript validation before using ajax to go to this php page, from login page.

Edited August 13, 2014 by dsonesuk

[niche]

Except, users can disable their JS. Then JS validation is no go.