Is JavaScript validation necessary alongside PHP?
3141
JavaScript: client-side vs. server-side validation
108915
If HTML, CSS, and Javascript are client-side, why are they components of a PHP file?
23061
How do I validate a html file with C#?
155065
What is the "break/continue $var syntax" (will be removed in PHP 5.4)?
38784
How to PHP server-side check if a url of a web site is valid?
87241
Javascript server side?
152744
how do i write a javascript alert box to give a yes or no question and integrate with php calls?
116809
Pass php variables to js without drupal behaviour
114745
MVC Client Side Validation without preventing form submit
134638
Is there a minlength validation attribute in HTML5?
97134
PHP conditionals, brackets needed?
128435
How do I add custom validations to Webform?
74155
How do I get PHP errors to display?
4155
Php checkboxes - what's missing ?
81926
When do I need to specify the JavaScript protocol?
113629
Silverlight best practice for validation?
50978
PHP some $_POST values missing but are present in php://input