3v4l.org

run code in 300+ PHP versions simultaneously
<?php $char = '_'; $if (strpos("_bc597962-ec50-5e34-517c-ac5319b2dcd9", $char) === 0) { echo $char; } if (strpos('_bc597962-ec50-5e34-517c-ac5319b2dcd9', '_') === 0) { echo 'YES'; }

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
7.2.20.0090.01319.70
7.2.10.0100.01319.78
7.2.00.0060.01519.67
7.1.140.0110.01018.59
7.1.130.0060.01518.09
7.1.120.0090.01418.12
7.1.110.0060.01417.80
7.1.100.0060.01317.70
7.1.90.0110.01018.01
7.1.80.0180.01315.57
7.1.70.0170.01015.07
7.1.60.0310.01835.07
7.1.50.0320.01932.73
7.1.40.0310.01634.25
7.1.30.0370.01334.29
7.1.20.0400.01934.29
7.1.10.0050.01216.17
7.1.00.0050.01316.48

preferences:
138.36 ms | 1394 KiB | 7 Q