3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(8/16); var_dump((1/16) * 8); var_dump(pow(16,-1) * 8); var_dump(bcpow('16','-1',1) * 8); var_dump(bcpow('16','-1',2) * 8); var_dump(bcpow('16','-1',3) * 8);
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, 5.5.0 - 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 - 7.3.31, 7.4.0 - 7.4.25, 7.4.27 - 7.4.32, 8.0.0 - 8.0.12, 8.0.14 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
float(0.5) float(0.5) float(0.5) float(0) float(0.48) float(0.496)
Output for 7.3.32 - 7.3.33, 7.4.26, 7.4.33, 8.0.13
float(0.5) float(0.5) float(0.5) Fatal error: Uncaught Error: Call to undefined function bcpow() in /in/hi3se:5 Stack trace: #0 {main} thrown in /in/hi3se on line 5
Process exited with code 255.
Output for 5.4.0 - 5.4.45
float(0.5) float(0.5) float(0.5) Fatal error: Call to undefined function bcpow() in /in/hi3se on line 5
Process exited with code 255.

preferences:
224.58 ms | 402 KiB | 462 Q