<?php
$user_id = "2";
$user_id = "0123";
if ( (int) $user_id == 0 ) {
echo "The user_id $user_id was not an integer.\n";
exit;
}
echo "---> I think $user_id is an INT\n";
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0
---> I think 0123 is an INT