3v4l.org

run code in 500+ PHP versions simultaneously
<?php $login = "'or''='"; $uzivatel = filter_var($login,FILTER_SANITIZE_EMAIL); echo "SELECT * FROM `seznam_polozek` WHERE `uzivatel` = '" . $uzivatel . "'";
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.6 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.32, 8.3.0 - 8.3.32, 8.4.1 - 8.4.23, 8.5.0 - 8.5.8
SELECT * FROM `seznam_polozek` WHERE `uzivatel` = ''or''=''
preferences:
108.48 ms | 1495 KiB | 4 Q