3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(log10(2*2)*10); var_dump(log10(3*3)*10); var_dump(log10(4*4)*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(6.020599913279624) float(9.542425094393248) float(12.041199826559248)
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(6.0205999132796) float(9.5424250943932) float(12.041199826559)

preferences:
292.01 ms | 404 KiB | 455 Q