3v4l.org

run code in 300+ PHP versions simultaneously
<?php for ($i = 0; $i < 10; $i++) { var_dump(log10(sqrt($i % 10) + 1) * $i * 10); }
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
float(0) float(3.010299956639812) float(7.655513706757261) float(13.094663147960109) float(19.084850188786497) float(25.500881795697996) float(32.26529147339185) float(39.32509284513672) float(46.64163076667664) float(54.18539921951662)
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 - 5.5.35, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33
float(0) float(3.0102999566398) float(7.6555137067573) float(13.09466314796) float(19.084850188786) float(25.500881795698) float(32.265291473392) float(39.325092845137) float(46.641630766677) float(54.185399219517)

preferences:
246.73 ms | 405 KiB | 343 Q