Random and Shuffle

<?php echo ‘Random Number between 1000-9999 : ‘. rand(1000, 9999) . ‘<br>’; echo ‘Shuffle Letters in a String (ABCDE) : ‘. str_shuffle(“ABCDE”) . ‘<br>’; echo ‘Random (10) Bytes : ‘. random_bytes(10) . ‘<br>’; echo ‘bin2hex of 10 Bytes : ‘; var_dump(bin2hex(random_bytes(10))); ?>