3v4l.org

run code in 300+ PHP versions simultaneously
<?php $var = 'a'; $oldArray = [&$var]; $newArray = $oldArray; $newArray[0] = 'b'; var_dump($var);

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)
8.5.10.0080.01019.96
8.5.00.0130.00819.81
8.4.160.0120.01023.80
8.4.150.0010.00114.05
8.4.140.0130.00717.77
8.4.130.0030.00617.64
8.4.120.0100.01024.02
8.4.110.0080.00322.39
8.4.100.0060.01120.54
8.4.90.0040.00620.54
8.4.80.0130.00517.71
8.4.70.0120.00717.78
8.4.60.0100.01118.88
8.4.50.0050.00518.67
8.4.40.0060.01419.31
8.4.30.0160.00318.52
8.4.20.0040.00422.57
8.4.10.0130.00723.77
8.3.280.0120.01218.38
8.3.270.0100.00916.32
8.3.260.0070.00616.52
8.3.250.0070.00916.66
8.3.240.0120.00717.15
8.3.230.0030.00616.54
8.3.220.0140.00617.29
8.3.210.0120.00616.69
8.3.200.0030.00616.55
8.3.190.0090.00717.25
8.3.180.0100.00816.37
8.3.170.0000.00717.07
8.3.160.0070.01018.53
8.3.150.0070.01118.11
8.3.140.0150.00416.68
8.3.130.0090.00018.34
8.3.120.0090.00920.42
8.3.110.0110.00420.94
8.3.100.0090.00916.48
8.3.90.0080.01126.77
8.3.80.0070.00718.28
8.3.70.0070.01018.30
8.3.60.0070.01016.32
8.3.50.0060.01216.72
8.3.40.0120.00620.46
8.3.30.0090.00618.77
8.3.20.0100.00324.18
8.3.10.0070.00024.66
8.3.00.0070.00026.16
8.2.290.0130.00620.65
8.2.280.0120.00618.38
8.2.270.0030.00517.41
8.2.260.0150.00320.13
8.2.250.0080.00018.39
8.2.240.0040.00419.01
8.2.230.0030.00622.58
8.2.220.0040.00424.06
8.2.210.0130.00626.77
8.2.200.0070.00418.29
8.2.190.0090.00916.58
8.2.180.0140.00716.63
8.2.170.0070.00718.96
8.2.160.0110.00322.96
8.2.150.0070.00025.66
8.2.140.0060.00324.66
8.2.130.0040.00426.16
8.2.120.0040.00426.16
8.2.110.0070.00321.06
8.2.100.0080.00317.72
8.2.90.0060.00319.76
8.2.80.0000.00817.63
8.2.70.0080.00017.60
8.2.60.0080.00018.04
8.2.50.0000.00818.07
8.2.40.0040.00818.34
8.2.30.0040.00417.98
8.2.20.0000.00719.37
8.2.10.0030.00617.73
8.2.00.0100.00617.75
8.1.330.0110.00721.79
8.1.320.0100.00616.00
8.1.310.0040.00418.23
8.1.300.0120.00618.22
8.1.290.0100.00030.84
8.1.280.0060.00925.92
8.1.270.0040.00424.66
8.1.260.0060.00326.35
8.1.250.0040.00428.09
8.1.240.0080.00022.71
8.1.230.0040.00720.94
8.1.220.0080.00017.74
8.1.210.0040.00418.79
8.1.200.0060.00317.36
8.1.190.0000.00817.22
8.1.180.0050.00322.11
8.1.170.0000.00818.70
8.1.160.0040.00418.97
8.1.150.0040.00418.62
8.1.140.0120.00417.39
8.1.130.0140.00317.45
8.1.120.0060.00917.43
8.1.110.0140.00417.39
8.1.100.0100.00717.40
8.1.90.0110.00617.46
8.1.80.0050.00517.53
8.1.70.0030.00717.49
8.1.60.0130.00917.60
8.1.50.0180.00417.46
8.1.40.0080.00417.66
8.1.30.0050.00917.62
8.1.20.0130.00317.57
8.1.10.0090.00317.48
8.1.00.0160.00517.51
8.0.300.0080.00020.07
8.0.290.0000.00716.63
8.0.280.0000.00818.48
8.0.270.0120.00416.80
8.0.260.0190.00016.77
8.0.250.0180.00416.82
8.0.240.0170.00016.71
8.0.230.0140.00416.80
8.0.220.0170.00016.75
8.0.210.0110.00016.76
8.0.200.0100.00516.85
8.0.190.0060.00616.86
8.0.180.0110.00016.82
8.0.170.0080.00316.71
8.0.160.0110.00016.86
8.0.150.0090.00316.80
8.0.140.0040.00416.77
8.0.130.0060.00316.77
8.0.120.0000.01116.71
8.0.110.0030.00616.73
8.0.100.0050.00516.72
8.0.90.0060.00316.66
8.0.80.0040.00716.72
8.0.70.0030.01016.75
8.0.60.0070.00416.78
8.0.50.0130.00216.74
8.0.30.0120.00516.70
8.0.20.0180.00716.76
8.0.10.0200.00316.82

preferences:
37.14 ms | 403 KiB | 5 Q