3v4l.org

run code in 300+ PHP versions simultaneously
<?php array('foo' => false); var_dump(isset(array('foo')));

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)
5.4.390.0230.06018.74
5.4.380.0170.07318.63
5.4.370.0200.06718.54
5.4.360.0230.06718.50
5.4.350.0170.06718.72
5.4.340.0230.05018.80
5.4.320.0200.05718.80
5.4.310.0130.05718.71
5.4.300.0130.06018.74
5.4.290.0200.04718.70
5.4.280.0070.06718.62
5.4.270.0170.05718.83
5.4.260.0170.05318.77
5.4.250.0230.05018.69
5.4.240.0170.06718.61
5.4.230.0130.06718.70
5.4.220.0270.06018.49
5.4.210.0230.06318.83
5.4.200.0170.06716.55
5.4.190.0170.07018.51
5.4.180.0270.06318.72
5.4.170.0230.06718.51
5.4.160.0200.06718.61
5.4.150.0230.06318.60
5.4.140.0100.05716.28
5.4.130.0200.04716.25
5.4.120.0170.04716.33
5.4.110.0100.06016.41
5.4.100.0100.06016.19
5.4.90.0200.04716.20
5.4.80.0200.05016.23
5.4.70.0200.04716.16
5.4.60.0070.05316.44
5.4.50.0230.05716.29
5.4.40.0170.06016.24
5.4.30.0100.05016.29
5.4.20.0070.05716.40
5.4.10.0100.05316.29
5.4.00.0270.04015.66
5.3.290.0170.05714.67
5.3.280.0230.06314.64
5.3.270.0300.06014.51
5.3.260.0270.06314.59
5.3.250.0130.07314.52
5.3.240.0100.07014.51
5.3.230.0230.05314.67
5.3.220.0130.06714.62
5.3.210.0330.04714.56
5.3.200.0100.05714.46
5.3.190.0230.04314.48
5.3.180.0200.04314.52
5.3.170.0300.04314.59
5.3.160.0130.07314.48
5.3.150.0130.07314.61
5.3.140.0200.06714.54
5.3.130.0100.06714.54
5.3.120.0030.06314.46
5.3.110.0130.05014.48
5.3.100.0200.04713.99
5.3.90.0100.05314.03
5.3.80.0230.04714.00
5.3.70.0170.04714.04
5.3.60.0170.05013.91
5.3.50.0170.04714.04
5.3.40.0170.04713.86
5.3.30.0170.04313.90
5.3.20.0200.04313.59
5.3.10.0070.05313.69
5.3.00.0100.05313.59
5.2.170.0130.04311.18
5.2.160.0100.04311.07
5.2.150.0200.05011.05
5.2.140.0170.05011.09
5.2.130.0170.03311.24
5.2.120.0170.03311.13
5.2.110.0200.03711.05
5.2.100.0070.04311.11
5.2.90.0070.05011.14
5.2.80.0200.03311.10
5.2.70.0130.04311.07
5.2.60.0070.05011.00
5.2.50.0130.04310.95
5.2.40.0070.04310.98
5.2.30.0030.04710.89
5.2.20.0170.03310.96
5.2.10.0000.05310.91
5.2.00.0130.04010.80
5.1.60.0100.0439.95
5.1.50.0070.04010.00
5.1.40.0000.04310.00
5.1.30.0070.04310.48
5.1.20.0100.03710.42
5.1.10.0130.03310.09
5.1.00.0130.03310.09
5.0.50.0100.0308.57
5.0.40.0030.0378.50
5.0.30.0100.0478.20
5.0.20.0070.0338.26
5.0.10.0100.0338.16
5.0.00.0070.0408.15
4.4.90.0130.0175.90
4.4.80.0030.0335.89
4.4.70.0070.0275.82
4.4.60.0000.0275.88
4.4.50.0030.0235.88
4.4.40.0100.0305.86
4.4.30.0070.0205.90
4.4.20.0070.0305.93
4.4.10.0030.0335.97
4.4.00.0100.0405.91
4.3.110.0070.0205.83
4.3.100.0100.0235.79
4.3.90.0030.0235.79
4.3.80.0100.0305.89
4.3.70.0100.0175.81
4.3.60.0070.0235.79
4.3.50.0000.0305.78
4.3.40.0070.0375.80
4.3.30.0030.0304.88
4.3.20.0000.0304.88
4.3.10.0070.0204.88
4.3.00.0200.03314.62

preferences:
144.74 ms | 1394 KiB | 7 Q