3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = []; $array["b"] =& $array["a"]; $array["b"] = 1; var_dump($array); ?>

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)
8.3.70.0090.00918.27
8.3.60.0120.00616.48
8.3.50.0240.01022.11
8.3.40.0040.01118.65
8.3.30.0070.01018.54
8.3.20.0070.00020.21
8.3.10.0000.00723.78
8.3.00.0000.00719.85
8.2.190.0100.01016.63
8.2.180.0090.00616.50
8.2.170.0040.01122.96
8.2.160.0040.01120.33
8.2.150.0000.00824.18
8.2.140.0000.00824.66
8.2.130.0000.00820.89
8.2.120.0050.00326.35
8.2.110.0060.00319.20
8.2.100.0090.00317.78
8.2.90.0030.00619.26
8.2.80.0000.00917.97
8.2.70.0000.00917.63
8.2.60.0050.00317.93
8.2.50.0080.00018.10
8.2.40.0030.00621.11
8.2.30.0030.00620.68
8.2.20.0000.00717.55
8.2.10.0050.00217.86
8.2.00.0070.00017.95
8.1.280.0040.01425.92
8.1.270.0000.00818.77
8.1.260.0040.00428.09
8.1.250.0140.00028.09
8.1.240.0030.00721.19
8.1.230.0080.00517.83
8.1.220.0000.00817.74
8.1.210.0060.00318.77
8.1.200.0000.00817.36
8.1.190.0050.00317.22
8.1.180.0040.00418.10
8.1.170.0000.00818.50
8.1.160.0000.00720.69
8.1.150.0040.00418.72
8.1.140.0050.00319.49
8.1.130.0000.00717.50
8.1.120.0030.00417.29
8.1.110.0080.00017.38
8.1.100.0000.00717.29
8.1.90.0000.00717.37
8.1.80.0000.00717.40
8.1.70.0070.00017.23
8.1.60.0050.00317.58
8.1.50.0000.00717.46
8.1.40.0000.00717.48
8.1.30.0080.00017.58
8.1.20.0060.00317.44
8.1.10.0050.00317.56
8.1.00.0090.00017.54
8.0.300.0080.00018.77
8.0.290.0090.00016.58
8.0.280.0040.00418.30
8.0.270.0070.00017.19
8.0.260.0000.00617.06
8.0.250.0030.00316.91
8.0.240.0040.00416.80
8.0.230.0070.00016.86
8.0.220.0000.00816.75
8.0.210.0000.00716.86
8.0.200.0060.00016.92
8.0.190.0000.00816.79
8.0.180.0000.00716.85
8.0.170.0030.00616.71
8.0.160.0000.00716.80
8.0.150.0030.00416.77
8.0.140.0070.00016.80
8.0.130.0000.00613.23
8.0.120.0080.00016.68
8.0.110.0030.00516.71
8.0.100.0040.00416.61
8.0.90.0040.00416.69
8.0.80.0090.01516.79
8.0.70.0040.00416.62
8.0.60.0070.00016.88
8.0.50.0030.00316.72
8.0.30.0110.00517.05
8.0.20.0120.00617.40
8.0.10.0050.00216.91
8.0.00.0100.00916.73
7.4.330.0000.00516.79
7.4.320.0030.00316.52
7.4.300.0000.00616.36
7.4.290.0030.00316.51
7.4.280.0030.00616.36
7.4.270.0000.00716.52
7.4.260.0000.00716.54
7.4.250.0030.00516.51
7.4.240.0060.00116.38
7.4.230.0030.00316.63
7.4.220.0150.00416.58
7.4.210.0070.00716.48
7.4.200.0070.00016.64
7.4.160.0070.01116.41
7.4.150.0160.00617.40
7.4.140.0100.01117.86
7.4.130.0110.00716.57
7.4.120.0140.00416.51
7.4.110.0090.00916.25
7.4.100.0030.01316.23
7.4.90.0030.01416.55
7.4.80.0070.01119.39
7.4.70.0030.01316.52
7.4.60.0040.01116.38
7.4.50.0040.01216.12
7.4.40.0060.01016.36
7.4.30.0070.01316.44
7.4.00.0100.00314.93
7.3.330.0060.00012.95
7.3.320.0020.00213.12
7.3.310.0030.00516.03
7.3.300.0030.00316.09
7.3.290.0090.00716.18
7.3.280.0110.00416.14
7.3.270.0120.01217.40
7.3.260.0090.00916.18
7.3.250.0090.00816.23
7.3.240.0130.00616.57
7.3.230.0060.01616.47
7.3.210.0050.01116.05
7.3.200.0120.00416.48
7.3.190.0060.01216.18
7.3.180.0100.00616.23
7.3.170.0070.01016.31
7.3.160.0040.01616.46
7.2.330.0080.01216.29
7.2.320.0170.00716.59
7.2.310.0100.00616.36
7.2.300.0060.01016.35
7.2.290.0090.00916.61
7.2.60.0090.00616.63
7.2.00.0030.00619.33
7.1.200.0000.01215.82
7.1.100.0690.01516.08
7.1.70.0030.00517.19
7.1.60.0090.01619.50
7.1.50.0070.01016.86
7.1.00.0070.07322.40
7.0.200.0000.00816.63
7.0.60.0070.03719.94
7.0.50.0070.06317.71
7.0.40.0070.07720.06
7.0.30.0300.07320.20
7.0.20.0230.05719.96
7.0.10.0100.08320.19
7.0.00.0100.07720.16
5.6.280.0030.06320.89
5.6.210.0200.05020.47
5.6.200.0070.03718.12
5.6.190.0070.07320.32
5.6.180.0500.07020.39
5.6.170.0230.07020.38
5.6.160.0070.04720.49
5.6.150.0100.07318.21
5.6.140.0070.08018.20
5.6.130.0100.05018.12
5.6.120.0130.07021.09
5.6.110.0100.04021.11
5.6.100.0130.08020.95
5.6.90.0100.08021.07
5.6.80.0130.06720.37
5.5.350.0030.07720.40
5.5.340.0000.04017.95
5.5.330.0070.08320.56
5.5.320.0030.04720.32
5.5.310.0230.07720.50
5.5.300.0000.08717.96
5.5.290.0130.07017.90
5.5.280.0000.04320.79
5.5.270.0100.07320.93
5.5.260.0130.07720.75
5.5.250.0030.04020.69
5.5.240.0170.07320.25

preferences:
71.64 ms | 401 KiB | 5 Q