Recortar imagen con PHP
https://www.geeksforgeeks.org/php-imagecrop-function/ https://www.tutorialspoint.com/how-to-crop-an-image-to-the-given-rectangle-using-imagecrop-function-using-php
Categoría: PHP
PHP login sin base de datos
https://www.w3schools.in/php/examples/php-login-without-using-database