3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array('a', 'b'); foreach ($a as $key => $val) { $a[1] .= 'a'; var_dump($a); } 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)
8.3.60.0090.01218.57
8.3.50.0140.00721.15
8.3.40.0090.00618.67
8.3.30.0070.00718.95
8.3.20.0070.00020.29
8.3.10.0080.00020.58
8.3.00.0080.00019.26
8.2.180.0090.00616.63
8.2.170.0140.00722.96
8.2.160.0130.00020.43
8.2.150.0060.00324.18
8.2.140.0000.00824.66
8.2.130.0040.00426.16
8.2.120.0030.00622.18
8.2.110.0030.00720.16
8.2.100.0000.01118.22
8.2.90.0080.00019.36
8.2.80.0060.00317.97
8.2.70.0050.00317.50
8.2.60.0050.00518.00
8.2.50.0090.00018.07
8.2.40.0030.00618.28
8.2.30.0040.00418.16
8.2.20.0040.00417.73
8.2.10.0000.00718.11
8.2.00.0070.00017.71
8.1.280.0110.00425.92
8.1.270.0090.00023.82
8.1.260.0050.00226.35
8.1.250.0050.00328.09
8.1.240.0040.00423.96
8.1.230.0070.00418.93
8.1.220.0040.00417.78
8.1.210.0000.00918.77
8.1.200.0060.00317.23
8.1.190.0030.00517.23
8.1.180.0040.00418.10
8.1.170.0050.00318.71
8.1.160.0080.00021.93
8.1.150.0040.00418.95
8.1.140.0070.00017.41
8.1.130.0030.00317.69
8.1.120.0070.00017.35
8.1.110.0030.00717.34
8.1.100.0040.00317.34
8.1.90.0000.00717.47
8.1.80.0070.00017.44
8.1.70.0030.00317.41
8.1.60.0070.00317.52
8.1.50.0080.00017.47
8.1.40.0000.00717.39
8.1.30.0000.00817.63
8.1.20.0040.00417.60
8.1.10.0000.00717.47
8.1.00.0000.00817.43
8.0.300.0080.00018.77
8.0.290.0070.00016.58
8.0.280.0050.00218.43
8.0.270.0080.00017.15
8.0.260.0000.00717.17
8.0.250.0030.00316.98
8.0.240.0030.00316.97
8.0.230.0000.00816.82
8.0.220.0030.00316.84
8.0.210.0030.00316.89
8.0.200.0000.00616.89
8.0.190.0030.00616.91
8.0.180.0000.00716.84
8.0.170.0030.00616.95
8.0.160.0070.00016.86
8.0.150.0000.00716.69
8.0.140.0030.00516.86
8.0.130.0030.00313.32
8.0.120.0060.00316.77
8.0.110.0040.00416.88
8.0.100.0000.00816.66
8.0.90.0050.00216.76
8.0.80.0130.00316.95
8.0.70.0000.00716.91
8.0.60.0050.00316.83
8.0.50.0000.00716.90
8.0.30.0130.00517.10
8.0.20.0110.00817.40
8.0.10.0070.00016.80
8.0.00.0070.01116.86
7.4.330.0050.00015.03
7.4.320.0030.00316.50
7.4.300.0000.00716.47
7.4.290.0000.00716.47
7.4.280.0040.00416.50
7.4.270.0000.00816.50
7.4.260.0000.00616.38
7.4.250.0090.00016.48
7.4.240.0030.00416.54
7.4.230.0000.00716.57
7.4.220.0160.00316.48
7.4.210.0040.01016.53
7.4.200.0000.00716.66
7.4.160.0040.01216.38
7.4.150.0110.00717.40
7.4.140.0130.01017.86
7.4.130.0110.00616.51
7.4.120.0120.00616.53
7.4.110.0120.00916.68
7.4.100.0100.00616.67
7.4.90.0120.00916.55
7.4.80.0030.01419.39
7.4.70.0080.00816.49
7.4.60.0120.01216.55
7.4.50.0020.00216.41
7.4.40.0000.01616.47
7.4.30.0140.00716.71
7.4.00.0110.00715.07
7.3.330.0050.00013.24
7.3.320.0020.00213.00
7.3.310.0030.00616.38
7.3.300.0030.00316.30
7.3.290.0070.00716.36
7.3.280.0100.01016.38
7.3.270.0150.00317.40
7.3.260.0150.00616.26
7.3.250.0110.01016.46
7.3.240.0080.01116.37
7.3.230.0080.00816.39
7.3.210.0000.01716.46
7.3.200.0220.00619.39
7.3.190.0100.00716.63
7.3.180.0120.00316.25
7.3.170.0030.01316.32
7.3.160.0060.01016.41
7.3.120.0110.00514.80
7.3.110.0080.00814.62
7.3.100.0060.00814.82
7.3.90.0030.01014.89
7.3.80.0060.00814.77
7.3.70.0080.00814.69
7.3.60.0060.00814.85
7.3.50.0080.00714.99
7.3.40.0100.00414.81
7.3.30.0040.00714.62
7.3.20.0070.00516.71
7.3.10.0060.00816.83
7.3.00.0090.00316.38
7.2.330.0070.01116.59
7.2.320.0040.01416.57
7.2.310.0060.01216.37
7.2.300.0070.01016.47
7.2.290.0150.00816.73
7.2.250.0060.01314.85
7.2.240.0030.01415.07
7.2.230.0030.01115.09
7.2.220.0070.01115.01
7.2.210.0060.01015.03
7.2.200.0070.01215.13
7.2.190.0060.01015.04
7.2.180.0020.01415.14
7.2.170.0020.01514.99
7.2.160.0000.01514.84
7.2.150.0070.00716.77
7.2.140.0070.00316.76
7.2.130.0070.00716.87
7.2.120.0080.00417.00
7.2.110.0040.01116.98
7.2.100.0090.00616.98
7.2.90.0080.00417.02
7.2.80.0080.00816.97
7.2.70.0000.01516.64
7.2.60.0040.00816.96
7.2.50.0040.00416.78
7.2.40.0060.00817.08
7.2.30.0000.01016.77
7.2.20.0030.01016.91
7.2.10.0060.00917.00
7.2.00.0050.01118.01
7.1.330.0040.00916.02
7.1.320.0080.00615.69
7.1.310.0060.00815.83
7.1.300.0090.00515.72
7.1.290.0020.01415.81
7.1.280.0050.00615.81
7.1.270.0030.00615.69
7.1.260.0030.01015.85
7.1.250.0070.00715.51
7.1.100.0090.00018.00
7.1.70.0060.00317.25
7.1.60.0090.01619.32
7.1.50.0100.00717.10
7.1.00.0070.07022.31
7.0.200.0000.00816.82
7.0.140.0070.07022.09
7.0.60.0130.08020.00
7.0.50.0100.07317.66
7.0.40.0000.04719.90
7.0.30.0300.06720.09
7.0.20.0270.07320.01
7.0.10.0100.03720.04
7.0.00.0000.09020.08
5.6.280.0070.06721.04
5.6.210.0070.08320.54
5.6.200.0070.03718.15
5.6.190.0070.09320.41
5.6.180.0430.04020.56
5.6.170.0270.05020.50
5.6.160.0000.04320.38
5.6.150.0130.07318.20
5.6.140.0130.07318.09
5.6.130.0030.08018.15
5.6.120.0000.04321.08
5.6.110.0000.04720.99
5.6.100.0130.08021.11
5.6.90.0100.07720.94
5.6.80.0100.06320.43
5.5.350.0130.04320.47
5.5.340.0100.03717.98
5.5.330.0130.06320.06
5.5.320.0470.06720.51
5.5.310.0300.05020.27
5.5.300.0070.04318.02
5.5.290.0070.06317.95
5.5.280.0000.04720.87
5.5.270.0170.07020.74
5.5.260.0070.06020.95
5.5.250.0030.08020.46
5.5.240.0230.03720.14
5.4.450.0230.03319.57
5.4.440.1100.05019.59
5.4.430.1000.05719.61
5.4.420.0870.00019.48
5.4.410.0630.00019.35
5.4.400.0600.00018.96
5.4.390.0600.00019.15
5.4.380.0630.00019.14
5.4.370.0600.00019.26
5.4.360.0600.00019.14
5.4.350.0630.00018.98
5.4.340.0600.00019.09
5.4.320.0070.03512.45
5.4.310.0060.03812.45
5.4.300.0100.03312.46
5.4.290.0060.03812.45
5.4.280.0070.03412.35
5.4.270.0060.03512.35
5.4.260.0090.03712.35
5.4.250.0060.04212.35
5.4.240.0040.03712.35
5.4.230.0040.04212.34
5.4.220.0070.03412.34
5.4.210.0030.03712.34
5.4.200.0050.03712.34
5.4.190.0060.03412.34
5.4.180.0060.03412.34
5.4.170.0040.03712.35
5.4.160.0020.03912.34
5.4.150.0060.03512.34
5.4.140.0050.03712.03
5.4.130.0050.03512.01
5.4.120.0070.03411.97
5.4.110.0050.03611.96
5.4.100.0040.03611.97
5.4.90.0080.03311.96
5.4.80.0030.04111.97
5.4.70.0060.03411.96
5.4.60.0050.03711.97
5.4.50.0060.03411.97
5.4.40.0030.03611.96
5.4.30.0100.03011.95
5.4.20.0050.03411.95
5.4.10.0090.03011.95
5.4.00.0060.03511.44
5.3.290.0050.03812.80
5.3.280.0050.03712.70
5.3.270.0060.03712.72
5.3.260.0060.03712.72
5.3.250.0070.03512.72
5.3.240.0070.03412.72
5.3.230.0040.03812.71
5.3.220.0040.03712.68
5.3.210.0070.03612.68
5.3.200.0080.03412.68
5.3.190.0050.03812.68
5.3.180.0040.04012.68
5.3.170.0080.03412.67
5.3.160.0090.03412.67
5.3.150.0090.04112.68
5.3.140.0040.03812.66
5.3.130.0040.04012.66
5.3.120.0040.04112.66
5.3.110.0070.03712.66
5.3.100.0070.03612.12
5.3.90.0070.03912.08
5.3.80.0080.03812.07
5.3.70.0060.03512.08
5.3.60.0070.03412.06
5.3.50.0060.03612.00
5.3.40.0050.03712.00
5.3.30.0080.03411.95
5.3.20.0060.03411.72
5.3.10.0030.03611.69
5.3.00.0050.03511.68
5.2.170.0020.0319.18
5.2.160.0050.0289.18
5.2.150.0070.0389.18
5.2.140.0060.0399.17
5.2.130.0030.0329.13
5.2.120.0020.0319.13
5.2.110.0050.0339.14
5.2.100.0040.0289.14
5.2.90.0050.0339.14
5.2.80.0040.0349.13
5.2.70.0030.0349.14
5.2.60.0030.0369.08
5.2.50.0080.0329.05
5.2.40.0050.0289.04
5.2.30.0030.0329.01
5.2.20.0030.0309.00
5.2.10.0060.0298.92
5.2.00.0070.0378.78
5.1.60.0050.0258.06
5.1.50.0050.0248.06
5.1.40.0050.0338.04
5.1.30.0070.0318.39
5.1.20.0050.0328.41
5.1.10.0050.0338.13
5.1.00.0040.0458.14
5.0.50.0040.0286.62
5.0.40.0040.0196.48
5.0.30.0030.0326.28
5.0.20.0040.0186.26
5.0.10.0030.0206.23
5.0.00.0030.0316.23
4.4.90.0030.0164.77
4.4.80.0050.0134.76
4.4.70.0020.0174.75
4.4.60.0010.0174.75
4.4.50.0020.0194.77
4.4.40.0050.0294.71
4.4.30.0020.0204.76
4.4.20.0010.0184.84
4.4.10.0050.0134.85
4.4.00.0040.0244.76
4.3.110.0050.0134.67
4.3.100.0040.0134.67
4.3.90.0040.0204.63
4.3.80.0020.0254.59
4.3.70.0020.0154.63
4.3.60.0030.0184.63
4.3.50.0010.0204.63
4.3.40.0020.0244.53
4.3.30.0030.0153.28
4.3.20.0020.0163.25
4.3.10.0000.0173.22
4.3.00.0270.01316.50

preferences:
42.51 ms | 401 KiB | 5 Q