3v4l.org

run code in 300+ PHP versions simultaneously
<?php $test='sdfqfdsqfsdfqsdf'; if (strpos($test,'filtre_id_opt_pos_') !== false) { $valeur = $test; } else { $valeur = base64_encode($test); }
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 7.0.31, 7.1.0 - 7.1.23, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
preferences:
205.51 ms | 404 KiB | 286 Q