3v4l.org

run code in 300+ PHP versions simultaneously
<?php $A = array(3,4); $B = &$A[0]; $F = &$A[1]; $C = $A; $D = $A; var_dump($C); var_dump($D); $C[0] = $D[1]; $C[0] = 10; $D[1] = 20; var_dump($C); var_dump($D); echo $A[0] . ' ' . $A[1];

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)
8.3.40.0100.00718.76
8.3.30.0090.00619.07
8.3.20.0040.00420.38
8.3.10.0080.00023.66
8.3.00.0060.00319.23
8.2.170.0100.00322.96
8.2.160.0070.00720.40
8.2.150.0060.01324.18
8.2.140.0040.00424.66
8.2.130.0000.00726.16
8.2.120.0050.00320.80
8.2.110.0090.00021.93
8.2.100.0040.00720.47
8.2.90.0040.00419.40
8.2.80.0000.00917.97
8.2.70.0030.00717.63
8.2.60.0030.00817.93
8.2.50.0040.00418.07
8.2.40.0060.00320.07
8.2.30.0080.00018.24
8.2.20.0030.00617.75
8.2.10.0000.00818.04
8.2.00.0040.00417.59
8.1.270.0090.00023.88
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0040.00723.82
8.1.230.0080.00319.06
8.1.220.0000.00717.74
8.1.210.0040.00418.77
8.1.200.0030.00617.48
8.1.190.0080.00017.23
8.1.180.0050.00318.10
8.1.170.0000.01018.66
8.1.160.0050.00222.11
8.1.150.0040.00418.62
8.1.140.0040.00417.53
8.1.130.0030.00317.71
8.1.120.0000.00717.36
8.1.110.0050.00217.38
8.1.100.0050.00217.41
8.1.90.0000.00717.53
8.1.80.0040.00417.38
8.1.70.0000.00817.41
8.1.60.0090.00017.57
8.1.50.0000.00817.55
8.1.40.0040.00417.43
8.1.30.0070.00317.58
8.1.20.0040.00417.57
8.1.10.0030.00617.62
8.1.00.0060.00317.52
8.0.300.0040.00418.77
8.0.290.0060.00316.75
8.0.280.0000.00718.55
8.0.270.0030.00617.27
8.0.260.0000.00717.21
8.0.250.0070.00016.90
8.0.240.0000.00816.97
8.0.230.0040.00416.95
8.0.220.0030.00316.90
8.0.210.0040.00416.88
8.0.200.0040.00416.95
8.0.190.0000.00716.96
8.0.180.0070.00016.95
8.0.170.0060.00316.78
8.0.160.0050.00316.79
8.0.150.0070.00016.75
8.0.140.0000.00816.84
8.0.130.0000.00513.28
8.0.120.0000.00816.86
8.0.110.0030.00616.92
8.0.100.0050.00316.75
8.0.90.0000.00716.76
8.0.80.0090.00616.83
8.0.70.0030.00516.88
8.0.60.0000.00717.00
8.0.50.0050.00216.93
8.0.30.0110.00817.03
8.0.20.0120.00617.40
8.0.10.0000.00816.86
8.0.00.0130.00816.74
7.4.330.0050.00015.00
7.4.320.0030.00316.58
7.4.300.0070.00016.55
7.4.290.0000.00616.55
7.4.280.0000.00716.45
7.4.270.0040.00416.42
7.4.260.0040.00416.42
7.4.250.0000.00716.57
7.4.240.0040.00416.52
7.4.230.0030.00316.46
7.4.220.0030.01316.50
7.4.210.0100.01016.56
7.4.200.0070.00016.56
7.4.160.0050.01116.57
7.4.150.0120.01217.40
7.4.140.0120.01117.86
7.4.130.0060.01416.43
7.4.120.0080.00816.45
7.4.110.0090.01216.43
7.4.100.0040.01316.48
7.4.90.0140.00316.53
7.4.80.0170.02119.39
7.4.70.0060.00916.30
7.4.60.0120.00616.49
7.4.50.0020.00216.40
7.4.40.0110.00616.54
7.4.30.0120.00416.30
7.4.00.0040.01214.84
7.3.330.0060.00013.18
7.3.320.0000.00613.11
7.3.310.0000.00716.32
7.3.300.0060.00016.18
7.3.290.0030.01216.32
7.3.280.0080.01016.32
7.3.270.0150.02017.40
7.3.260.0140.00416.54
7.3.250.0130.00816.44
7.3.240.0100.00716.45
7.3.230.0170.00016.39
7.3.210.0070.01016.54
7.3.200.0030.01319.39
7.3.190.0120.00616.27
7.3.180.0090.00616.45
7.3.170.0060.01116.33
7.3.160.0030.01216.55
7.3.120.0070.01115.04
7.3.10.0090.00716.53
7.3.00.0060.01116.25
7.2.330.0130.00816.43
7.2.320.0040.01316.74
7.2.310.0070.01016.34
7.2.300.0060.01216.61
7.2.290.0160.00316.69
7.2.130.0120.01016.54
7.2.120.0110.00916.78
7.2.110.0120.00516.36
7.2.100.0060.00716.69
7.2.90.0110.00316.69
7.2.80.0080.00816.83
7.2.70.0020.01416.83
7.2.60.0050.00816.83
7.2.50.0110.00916.69
7.2.40.0110.00716.70
7.2.30.0040.01116.60
7.2.20.0070.01116.63
7.2.10.0120.00316.42
7.2.00.0100.00716.73
7.1.250.0080.00515.41
7.1.200.0060.00916.04
7.1.70.0030.00617.19
7.1.60.0100.01319.70
7.1.50.0150.01217.02
7.1.00.0100.07022.42
7.0.200.0140.00716.20
7.0.140.0100.06722.08
7.0.60.0100.04319.93
7.0.50.0030.05717.81
7.0.40.0030.08719.90
7.0.30.0370.04320.09
7.0.20.0130.04320.18
7.0.10.0130.05020.16
7.0.00.0030.04319.99
5.6.280.0070.07021.13
5.6.210.0100.08020.52
5.6.200.0030.04318.19
5.6.190.0070.08720.44
5.6.180.0470.07320.41
5.6.170.0330.04720.49
5.6.160.0070.08020.37
5.6.150.0130.06718.18
5.6.140.0070.07718.12
5.6.130.0370.04718.17
5.6.120.0070.05720.80
5.6.110.0030.08721.14
5.6.100.0070.05320.98
5.6.90.0070.07720.84
5.6.80.0100.03320.40
5.5.350.0170.08320.29
5.5.340.0200.07017.88
5.5.330.0070.07020.29
5.5.320.0270.04720.17
5.5.310.0270.06020.32
5.5.300.0100.05018.02
5.5.290.0030.07017.91
5.5.280.0100.08320.84
5.5.270.0070.08720.74
5.5.260.0200.08020.73
5.5.250.0100.04720.59
5.5.240.0300.06720.16
5.4.450.0470.04326.16
5.4.440.0230.04726.13
5.4.430.0530.05026.13
5.4.420.0130.05326.13
5.4.410.0200.03326.12
5.4.400.0230.03326.11
5.4.390.0330.04726.09
5.4.380.0200.04718.62
5.4.370.0170.05018.70
5.4.360.0200.06318.70
5.4.350.0170.05018.59
5.4.340.0200.05018.68
5.4.320.0070.03512.46
5.4.310.0020.04212.45
5.4.300.0080.04712.46
5.4.290.0100.04912.45
5.4.280.0060.05012.35
5.4.270.0090.04612.35
5.4.260.0060.05312.35
5.4.250.0090.05012.35
5.4.240.0070.04912.35
5.4.230.0050.05312.34
5.4.220.0080.05012.34
5.4.210.0090.04912.34
5.4.200.0140.04712.34
5.4.190.0080.05212.34
5.4.180.0100.04612.34
5.4.170.0080.03812.35
5.4.160.0080.03912.35
5.4.150.0070.04212.34
5.4.140.0130.04112.02
5.4.130.0080.03812.02
5.4.120.0060.03811.97
5.4.110.0080.03811.97
5.4.100.0050.04011.97
5.4.90.0090.03811.97
5.4.80.0050.04211.97
5.4.70.0090.03411.96
5.4.60.0080.03511.96
5.4.50.0080.03811.96
5.4.40.0080.03811.95
5.4.30.0040.04711.95
5.4.20.0080.04011.95
5.4.10.0110.04911.95
5.4.00.0070.05211.44
5.3.290.0070.03912.80
5.3.280.0070.05212.71
5.3.270.0110.05212.72
5.3.260.0060.05712.72
5.3.250.0080.05412.71
5.3.240.0070.05412.72
5.3.230.0130.04812.71
5.3.220.0120.07712.68
5.3.210.0090.05412.68
5.3.200.0100.05112.68
5.3.190.0070.04512.68
5.3.180.0110.05012.68
5.3.170.0100.05012.67
5.3.160.0100.05112.67
5.3.150.0080.04112.67
5.3.140.0060.04112.66
5.3.130.0020.04712.66
5.3.120.0060.04612.66
5.3.110.0040.05412.65
5.3.100.0060.04612.12
5.3.90.0060.04612.09
5.3.80.0050.04412.07
5.3.70.0050.03912.08
5.3.60.0050.03712.07
5.3.50.0060.03712.00
5.3.40.0070.03812.00
5.3.30.0050.04011.94
5.3.20.0110.03211.72
5.3.10.0080.03611.69
5.3.00.0070.03711.68
5.2.170.0040.0409.18
5.2.160.0080.0299.18
5.2.150.0030.0339.18
5.2.140.0050.0329.17
5.2.130.0080.0369.13
5.2.120.0070.0429.14
5.2.110.0080.0319.14
5.2.100.0030.0329.14
5.2.90.0060.0359.14
5.2.80.0050.0339.13
5.2.70.0080.0289.14
5.2.60.0070.0299.09
5.2.50.0040.0309.06
5.2.40.0030.0319.03
5.2.30.0070.0309.01
5.2.20.0040.0309.00
5.2.10.0040.0308.93
5.2.00.0060.0308.79
5.1.60.0040.0278.07
5.1.50.0050.0248.07
5.1.40.0020.0278.05
5.1.30.0040.0288.41
5.1.20.0090.0288.43
5.1.10.0040.0268.15
5.1.00.0040.0288.15
5.0.50.0030.0236.63
5.0.40.0040.0246.49
5.0.30.0040.0476.30
5.0.20.0050.0276.27
5.0.10.0050.0316.25
5.0.00.0020.0366.24
4.4.90.0050.0154.77
4.4.80.0020.0194.76
4.4.70.0040.0164.76
4.4.60.0020.0184.76
4.4.50.0030.0234.77
4.4.40.0020.0264.71
4.4.30.0030.0164.76
4.4.20.0020.0204.85
4.4.10.0070.0164.85
4.4.00.0030.0324.76
4.3.110.0040.0164.67
4.3.100.0030.0174.67
4.3.90.0030.0154.63
4.3.80.0040.0324.58
4.3.70.0030.0214.63
4.3.60.0060.0184.63
4.3.50.0050.0204.62
4.3.40.0030.0264.54
4.3.30.0040.0163.29
4.3.20.0020.0183.27
4.3.10.0040.0163.23
4.3.00.0130.01726.09

preferences:
76.4 ms | 400 KiB | 5 Q