3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = "test\0test"; var_dump($$a);

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)
8.4.120.0100.01020.57
8.4.110.0100.00818.84
8.4.100.0120.00817.62
8.4.90.0120.01017.65
8.4.80.0110.00917.68
8.4.70.0130.00717.82
8.4.60.0090.01219.58
8.4.50.0140.00619.48
8.4.40.0060.01317.76
8.4.30.0040.00418.80
8.4.20.0070.01218.33
8.4.10.0130.00718.10
8.3.250.0100.00819.12
8.3.240.0090.01016.57
8.3.230.0070.00516.87
8.3.220.0100.00817.19
8.3.210.0090.01016.52
8.3.200.0040.00416.61
8.3.190.0130.00716.61
8.3.180.0140.00516.61
8.3.170.0060.00920.76
8.3.160.0090.00916.73
8.3.150.0230.00316.71
8.3.140.0070.00718.54
8.3.130.0060.00816.48
8.3.120.0110.00318.64
8.3.110.0090.00418.71
8.3.100.0070.00716.59
8.3.90.0070.00721.63
8.3.80.0160.00017.30
8.3.70.0170.00317.51
8.3.60.0150.00717.58
8.3.50.0140.00416.74
8.3.40.0130.00320.33
8.3.30.0120.00718.72
8.3.20.0120.00624.00
8.3.10.0130.00724.25
8.3.00.0080.01023.39
8.2.290.0090.00220.21
8.2.280.0050.00318.29
8.2.270.0120.00416.53
8.2.260.0110.00516.85
8.2.250.0100.00316.69
8.2.240.0110.00516.80
8.2.230.0100.00419.49
8.2.220.0110.00420.32
8.2.210.0130.00521.43
8.2.200.0080.00616.57
8.2.190.0100.00717.37
8.2.180.0140.00516.43
8.2.170.0130.00320.38
8.2.160.0100.00620.22
8.2.150.0130.00524.26
8.2.140.0070.01023.66
8.2.130.0130.00323.67
8.2.120.0140.00624.07
8.2.110.0120.00623.96
8.2.100.0090.01023.99
8.2.90.0120.00524.00
8.2.80.0100.00723.94
8.2.70.0120.00623.99
8.2.60.0110.00724.00
8.2.50.0100.00924.01
8.2.40.0100.00723.97
8.2.30.0110.00623.98
8.2.20.0100.00623.97
8.2.10.0090.00724.00
8.2.00.0100.00723.94
8.1.330.0130.00516.82
8.1.320.0090.00916.04
8.1.310.0110.00717.15
8.1.300.0110.00317.01
8.1.290.0070.00623.53
8.1.280.0100.00620.99
8.1.270.0090.00823.95
8.1.260.0060.00823.67
8.1.250.0100.00523.93
8.1.240.0110.00523.91
8.1.230.0090.00723.94
8.1.220.0100.00723.93
8.1.210.0090.00723.93
8.1.200.0090.00723.93
8.1.190.0110.00423.92
8.1.180.0090.00623.91
8.1.170.0120.00523.94
8.1.160.0090.00623.93
8.1.150.0110.00423.98
8.1.140.0090.00823.89
8.1.130.0110.00623.95
8.1.120.0110.00623.99
8.1.110.0080.00823.96
8.1.100.0080.00723.94
8.1.90.0090.00723.92
8.1.80.0090.00623.99
8.1.70.0100.00523.98
8.1.60.0080.00823.97
8.1.50.0090.00723.96
8.1.40.0090.00623.99
8.1.30.0100.00623.99
8.1.20.0110.00523.94
8.1.10.0090.00623.93
8.1.00.0060.01023.89

preferences:
28.37 ms | 403 KiB | 5 Q