3v4l.org

run code in 300+ PHP versions simultaneously
<?php ini_set('precision', 20); ini_set('serialize_precision', 20); var_dump(1097.5 - 835.7);
Output for 5.6.40, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
float(261.79999999999995453)
preferences:
68.3 ms | 1387 KiB | 4 Q