3v4l.org

run code in 300+ PHP versions simultaneously
<?php for ($i = 0; $i < 10; $i++) { var_dump(log10(sqrt($i % 10) + 1) * 50); }
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
float(0) float(15.05149978319906) float(19.138784266893154) float(21.824438579933513) float(23.856062735983123) float(25.500881795697993) float(26.887742894493204) float(28.089352032240516) float(29.151019229172903) float(30.10299956639812)
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
float(0) float(15.051499783199) float(19.138784266893) float(21.824438579934) float(23.856062735983) float(25.500881795698) float(26.887742894493) float(28.089352032241) float(29.151019229173) float(30.102999566398)

preferences:
299.59 ms | 405 KiB | 456 Q