Snaps in category Validation
Get Remote IP Address in PHP
This code allows to get the IP address from which the user is viewing the…
Check Referrer
This checks if the referrer is from the site you expect it to be.
RFC-compliant email address validator
Latest source code will always be here: http://code.google.com/p/isemail/source/browse/trunk
Email extension check
Great if you want to make sure an email ends in a certain extension.
Simple JPEG image validation
A function that does a simple JPEG image validation
Is IP
Is it a valid IP?
Email validator
A simple email validator.
Alphanumeric validation
Checks if a string is alphanumeric.
Length validator
Validates the length of a string
E-mail address validation
A function that validates e-mail addresses with dns lookup and syntax check