PHP User Registration Form

validation.php

<?php
//Form validation
	/* Form Required Field Validation */
	foreach($_POST as $key=>$value) {
		if(empty($_POST[$key])) {
			$error[] = "All Fields are required";
			break;
		}
	}
	
	/* Email Validation */	
	if (!filter_var($_POST["email"], FILTER_VALIDATE_EMAIL)) {
		$error[] = "Invalid Email Address";
		
	}
	/* Password Match Validation */
	if($_POST['password'] != $_POST['confirm_password']){ 
		$error[] = 'Passwords does not match'; 
	}