- var_dump: documentation ( source)
- ctype_xdigit: documentation ( source)
- md5: documentation ( source)
<?php
function isValidMd5(string $md5 = '') : bool {
return strlen($md5) == 32 && ctype_xdigit($md5);
}
var_dump(isValidMd5(md5('test')));
var_dump(isValidMd5('test'));