Question

Hello i post a variable to this script..
i can use the variable to make a dir, and i can echo Hola in the browser, but echo “$data” doesn’t work

<?php
$data = $_POST['gen_id'];
system("mkdir $data");
echo "Hola";
echo "$data";
?>

Answer 1

Echo doesn’t actually echo anything (at least it appears to not to) if the string is an empty string or null. If you want to know if it’s working or not use var_dump($data). When that runs it’ll put on the type and show something even if it’s an empty string of null.