3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x='initial'; $test=array('A'=>&$x,'B'=>&$x); $test=unserialize(serialize($test)); $test['A']='changed'; echo $test['B']; // Outputs "changed"

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)
8.3.60.0060.00916.50
8.3.50.0130.00722.06
8.3.40.0120.00618.60
8.3.30.0070.00719.05
8.3.20.0040.00420.16
8.3.10.0090.00020.67
8.3.00.0080.00019.17
8.2.180.0110.01118.29
8.2.170.0150.00322.96
8.2.160.0090.00620.45
8.2.150.0040.00424.18
8.2.140.0070.00024.66
8.2.130.0040.00426.16
8.2.120.0030.00519.77
8.2.110.0090.00019.21
8.2.100.0080.00417.91
8.2.90.0060.00619.76
8.2.80.0040.00419.39
8.2.70.0040.00417.38
8.2.60.0030.00617.93
8.2.50.0030.00518.07
8.2.40.0050.00318.03
8.2.30.0080.00018.04
8.2.20.0040.00417.75
8.2.10.0080.00018.06
8.2.00.0000.00917.57
8.1.280.0100.01025.92
8.1.270.0040.00420.73
8.1.260.0040.00426.35
8.1.250.0050.00328.09
8.1.240.0040.00422.65
8.1.230.0070.00420.89
8.1.220.0080.00017.80
8.1.210.0060.00318.84
8.1.200.0060.00317.13
8.1.190.0050.00317.52
8.1.180.0060.00318.10
8.1.170.0000.00918.69
8.1.160.0000.00718.87
8.1.150.0000.00718.88
8.1.140.0070.00017.31
8.1.130.0040.00417.88
8.1.120.0000.00717.25
8.1.110.0030.00317.29
8.1.100.0030.00317.42
8.1.90.0060.00317.30
8.1.80.0040.00417.29
8.1.70.0070.00017.33
8.1.60.0000.00717.43
8.1.50.0060.00317.43
8.1.40.0000.00817.46
8.1.30.0040.00417.59
8.1.20.0080.00017.49
8.1.10.0050.00217.44
8.1.00.0040.00417.52
8.0.300.0030.00320.03
8.0.290.0050.00316.75
8.0.280.0030.00318.45
8.0.270.0040.00417.13
8.0.260.0040.00417.17
8.0.250.0030.00317.07
8.0.240.0090.00016.96
8.0.230.0070.00016.87
8.0.220.0000.00716.86
8.0.210.0070.00016.91
8.0.200.0030.00416.97
8.0.190.0030.00316.85
8.0.180.0000.00716.82
8.0.170.0040.00416.94
8.0.160.0000.00716.84
8.0.150.0030.00416.87
8.0.140.0040.00416.91
8.0.130.0080.00013.25
8.0.120.0020.00516.91
8.0.110.0040.00416.91
8.0.100.0000.00716.95
8.0.90.0040.00416.79
8.0.80.0120.00416.84
8.0.70.0040.00416.94
8.0.60.0040.00416.76
8.0.50.0000.00716.91
8.0.30.0140.00717.04
8.0.20.0120.01017.40
8.0.10.0040.00316.88
8.0.00.0130.00516.88
7.4.330.0000.00515.04
7.4.320.0000.00616.52
7.4.300.0000.00616.54
7.4.290.0040.00416.34
7.4.280.0050.00316.58
7.4.270.0030.00316.44
7.4.260.0080.00016.57
7.4.250.0050.00316.43
7.4.240.0020.00516.51
7.4.230.0030.00316.54
7.4.220.0060.01316.51
7.4.210.0060.00916.59
7.4.200.0040.00416.45
7.4.160.0080.00816.60
7.4.150.0140.00317.40
7.4.140.0080.00917.86
7.4.130.0110.00916.48
7.4.120.0180.00316.48
7.4.110.0100.00716.71
7.4.100.0140.00416.51
7.4.90.0090.00916.59
7.4.80.0140.00816.54
7.4.70.0170.00016.63
7.4.60.0060.00916.48
7.4.50.0040.00416.36
7.4.40.0140.01016.55
7.4.30.0060.01116.62
7.4.00.0030.01014.82
7.3.330.0030.00312.99
7.3.320.0060.00012.98
7.3.310.0000.00716.09
7.3.300.0070.00016.07
7.3.290.0070.00916.27
7.3.280.0070.01016.25
7.3.270.0030.01917.40
7.3.260.0140.00316.43
7.3.250.0070.00916.46
7.3.240.0090.00916.46
7.3.230.0090.00916.54
7.3.210.0140.00316.18
7.3.200.0050.01519.39
7.3.190.0160.00316.34
7.3.180.0060.00916.36
7.3.170.0030.01416.27
7.3.160.0120.00316.66
7.2.330.0150.00316.59
7.2.320.0090.00916.64
7.2.310.0120.00616.43
7.2.300.0080.01516.85
7.2.290.0100.01316.86
7.2.60.0100.00316.73
7.2.00.0030.00919.59
7.1.200.0060.00615.48
7.1.100.0090.00317.64
7.1.70.0060.00616.79
7.1.60.0060.01219.34
7.1.50.0100.01417.08
7.1.00.0070.07322.28
7.0.200.0070.00316.69
7.0.140.0030.07322.07
7.0.60.0000.07320.00
7.0.50.0030.04017.66
7.0.40.0000.04720.01
7.0.30.0400.04020.13
7.0.20.0200.08320.27
7.0.10.0100.05019.95
7.0.00.0000.09320.16
5.6.280.0030.07320.81
5.6.210.0070.07720.46
5.6.200.0200.06718.12
5.6.190.0100.04320.68
5.6.180.0100.08020.60
5.6.170.0270.07320.50
5.6.160.0070.08020.51
5.6.150.0000.04718.12
5.6.140.0030.08318.17
5.6.130.0030.08318.23
5.6.120.0100.08321.03
5.6.110.0100.08021.00
5.6.100.0170.05321.12
5.6.90.0030.08020.96
5.6.80.0200.05320.30
5.5.350.0400.06320.45
5.5.340.0070.07317.89
5.5.330.0130.03320.40
5.5.320.0370.06020.28
5.5.310.0270.07320.21
5.5.300.0130.05017.98
5.5.290.0170.07017.98
5.5.280.0030.06020.76
5.5.270.0070.09320.75
5.5.260.0070.05720.75
5.5.250.0030.04720.68
5.5.240.0230.05020.21
5.4.450.0900.06319.23
5.4.440.0870.05719.58
5.4.430.0670.05719.51
5.4.420.0100.05319.35
5.4.410.0200.04319.39
5.4.400.0230.06018.72
5.4.390.0500.05318.52
5.4.380.0500.05018.56
5.4.370.0430.05718.58
5.4.360.0400.05018.54
5.4.350.0050.03511.97
5.4.340.0070.03411.96
5.4.320.0090.03912.45
5.4.310.0050.04012.45
5.4.300.0050.03812.46
5.4.290.0080.04112.45
5.4.280.0060.03912.35
5.4.270.0090.04212.34
5.4.260.0070.03912.35
5.4.250.0080.05012.34
5.4.240.0070.03812.35
5.4.230.0060.04012.34
5.4.220.0090.03212.34
5.4.210.0080.03912.34
5.4.200.0060.04512.34
5.4.190.0050.04112.34
5.4.180.0060.03912.34
5.4.170.0080.03812.34
5.4.160.0040.03912.34
5.4.150.0060.03712.34
5.4.140.0050.04012.02
5.4.130.0070.03612.01
5.4.120.0090.03711.96
5.4.110.0080.03611.96
5.4.100.0040.03811.96
5.4.90.0060.03811.96
5.4.80.0070.03511.96
5.4.70.0050.03611.96
5.4.60.0090.03711.96
5.4.50.0050.03911.96
5.4.40.0070.03411.95
5.4.30.0050.04111.95
5.4.20.0050.03711.95
5.4.10.0110.03211.95
5.4.00.0050.03911.43
5.3.290.0060.04212.80
5.3.280.0050.04112.71
5.3.270.0090.05112.72
5.3.260.0080.04412.72
5.3.250.0050.04012.72
5.3.240.0100.03712.72
5.3.230.0110.03612.71
5.3.220.0060.04112.68
5.3.210.0050.04312.68
5.3.200.0060.03712.68
5.3.190.0050.03912.68
5.3.180.0090.03412.67
5.3.170.0070.03512.67
5.3.160.0030.04012.67
5.3.150.0050.03812.67
5.3.140.0140.04212.66
5.3.130.0050.04712.66
5.3.120.0060.04512.66
5.3.110.0040.04812.66
5.3.100.0070.04312.11
5.3.90.0050.03912.09
5.3.80.0090.03412.08
5.3.70.0050.04312.07
5.3.60.0030.04612.06
5.3.50.0090.03712.00
5.3.40.0070.03612.00
5.3.30.0080.04511.95
5.3.20.0100.03311.74
5.3.10.0060.03411.70
5.3.00.0050.03711.68
5.2.170.0040.0339.18
5.2.160.0030.0309.18
5.2.150.0050.0309.18
5.2.140.0050.0329.18
5.2.130.0040.0319.14
5.2.120.0050.0299.13
5.2.110.0110.0239.15
5.2.100.0020.0319.14
5.2.90.0090.0369.14
5.2.80.0070.0409.14
5.2.70.0070.0319.13
5.2.60.0050.0309.09
5.2.50.0070.0329.06
5.2.40.0020.0349.04
5.2.30.0080.0299.01
5.2.20.0060.0379.00
5.2.10.0030.0328.92
5.2.00.0080.0328.78
5.1.60.0050.0298.06
5.1.50.0050.0258.06
5.1.40.0020.0278.04
5.1.30.0070.0238.39
5.1.20.0040.0278.41
5.1.10.0050.0288.14
5.1.00.0050.0298.14
5.0.50.0090.0206.62
5.0.40.0030.0216.48
5.0.30.0040.0356.29
5.0.20.0050.0216.26
5.0.10.0080.0296.24
5.0.00.0030.0386.23
4.4.90.0030.0174.78
4.4.80.0030.0164.76
4.4.70.0030.0184.76
4.4.60.0040.0154.76
4.4.50.0040.0144.77
4.4.40.0010.0274.70
4.4.30.0030.0164.76
4.4.20.0040.0144.85
4.4.10.0020.0174.85
4.4.00.0020.0284.76
4.3.110.0020.0174.67
4.3.100.0020.0164.66
4.3.90.0020.0164.63
4.3.80.0040.0234.59
4.3.70.0020.0174.63
4.3.60.0040.0144.63
4.3.50.0030.0204.63
4.3.40.0030.0284.54
4.3.30.0010.0173.29
4.3.20.0030.0193.27
4.3.10.0040.0153.23
4.3.00.0030.0237.05

preferences:
65.68 ms | 401 KiB | 5 Q