3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump( $a = base64_encode(1), base64_decode($a), $b = base64_encode(2), base64_decode($b), $c = base64_encode(3), base64_decode($c), $d = base64_encode(4) base64_decode($d) );

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)
7.0.00.0100.08020.16
5.6.160.0130.07720.54
5.6.150.0070.05718.14
5.6.140.0100.03318.20
5.6.130.0070.08018.18
5.6.120.0130.06721.14
5.6.110.0030.04020.93
5.6.100.0030.08321.00
5.6.90.0130.07720.98
5.6.80.0030.07020.30
5.5.300.0100.04317.98
5.5.290.0070.05318.07
5.5.280.0030.06720.87
5.5.270.0000.04320.67
5.5.260.0070.04020.93
5.5.250.0200.06320.59
5.5.240.0370.06320.34

preferences:
141.61 ms | 1394 KiB | 7 Q