php form validation

<?php
// php form validation

// https://youtu.be/0714EPk2C-E   by html-form-guide.com (https://html.form.guide/php-form/php-form-validation-tutorial/) 
// https://html.form.guide/snippets/javascript-form-validation-using-regular-expression/  (by telusko)

// https://www.youtube.com/watch?v=ZW9HavbryB4 (php validation library by dani krossing)
if (filter_var($email, FILTER_VALIDATE_EMAIL)) {}

// https://youtu.be/HLx-zbl6siM Dani Krossing
if(isset($_GET[uid]){} placing filled data there

// https://youtu.be/LC9GaXkdxF8 (login system 1) Dani Krossing
// https://www.youtube.com/watch?v=gCo6JqGMi30 (login system 2) Dani Krossing
// https://www.youtube.com/watch?v=wUkKCMEYj9M (Forgotten passwword) Dani Krossing

// regular exprsn //
// https://stackoverflow.com/questions/19605150/regex-for-password-must-contain-at-least-eight-characters-at-least-one-number-a






?>