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Validation is used to check data to make sure it fits whatever required specifications are set for it.

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PHP login/signup validation class

Since the blogging system will handle users, i thought that a Validation class would be a good idea in order to not repeat code for both login and signup validation. … validation.php: class Validation { private static $emailValidationRegex = '/^[^\s@]+@[^\s@]+\. …
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