3v4l.org

run code in 300+ PHP versions simultaneously
<?php for ($i = 0; $i < 10; $i++) { var_dump(log10(sqrt($i % 10) + 1) * 10); }
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
float(0) float(3.010299956639812) float(3.8277568533786304) float(4.364887715986702) float(4.771212547196624) float(5.100176359139599) float(5.377548578898641) float(5.6178704064481035) float(5.83020384583458) float(6.020599913279624)
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 - 5.6.40, 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(3.0102999566398) float(3.8277568533786) float(4.3648877159867) float(4.7712125471966) float(5.1001763591396) float(5.3775485788986) float(5.6178704064481) float(5.8302038458346) float(6.0205999132796)

preferences:
287.23 ms | 405 KiB | 455 Q