3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = array( '1' => array( array('2' => 'lol') ), ); foreach ($array as &$child) { foreach ($child as &$value) { $value['2'] .= ' world'; $value['2'] .= 'meh..'; } }

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)
8.3.60.0080.00616.50
8.3.50.0110.00822.98
8.3.40.0080.00618.84
8.3.30.0060.00918.92
8.3.20.0040.01420.21
8.3.10.0040.00423.66
8.3.00.0080.00017.50
8.2.180.0040.01416.50
8.2.170.0080.00622.96
8.2.160.0030.01020.53
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0070.00726.16
8.2.120.0000.00720.94
8.2.110.0070.00320.47
8.2.100.0080.00418.03
8.2.90.0050.00319.26
8.2.80.0050.00317.97
8.2.70.0080.00017.63
8.2.60.0000.00819.34
8.2.50.0020.00518.22
8.2.40.0040.00422.27
8.2.30.0070.00019.18
8.2.20.0000.00917.61
8.2.10.0000.00717.94
8.2.00.0060.00317.74
8.1.280.0110.00325.92
8.1.270.0050.00323.82
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0040.00422.29
8.1.230.0060.00617.89
8.1.220.0040.00417.91
8.1.210.0000.00818.77
8.1.200.0050.00517.36
8.1.190.0000.00817.13
8.1.180.0060.00318.10
8.1.170.0080.00018.68
8.1.160.0020.00518.81
8.1.150.0040.00420.13
8.1.140.0060.00317.44
8.1.130.0000.00717.77
8.1.120.0040.00417.52
8.1.110.0040.00417.45
8.1.100.0040.00417.50
8.1.90.0070.00217.34
8.1.80.0000.00717.35
8.1.70.0000.00617.36
8.1.60.0030.00617.55
8.1.50.0030.00517.50
8.1.40.0040.00417.52
8.1.30.0040.00417.55
8.1.20.0000.00717.64
8.1.10.0070.00017.38
8.1.00.0040.00417.32
8.0.300.0040.00418.77
8.0.290.0040.00416.75
8.0.280.0070.00018.43
8.0.270.0030.00317.29
8.0.260.0030.00317.30
8.0.250.0000.00616.82
8.0.240.0030.00316.97
8.0.230.0000.00716.89
8.0.220.0040.00416.79
8.0.210.0000.00716.84
8.0.200.0030.00316.90
8.0.190.0030.00516.84
8.0.180.0000.00716.73
8.0.170.0040.00416.90
8.0.160.0040.00416.76
8.0.150.0000.00716.80
8.0.140.0080.00416.81
8.0.130.0060.00013.34
8.0.120.0030.00516.84
8.0.110.0000.00716.88
8.0.100.0040.00416.91
8.0.90.0050.00216.81
8.0.80.0060.00916.82
8.0.70.0020.00516.72
8.0.60.0000.00716.75
8.0.50.0000.00716.68
8.0.30.0080.01217.15
8.0.20.0100.00917.40
8.0.10.0080.00016.99
8.0.00.0090.00916.63
7.4.330.0020.00215.09
7.4.320.0030.00316.50
7.4.300.0030.00316.54
7.4.290.0000.00716.52
7.4.280.0050.00216.58
7.4.270.0070.00016.60
7.4.260.0030.00316.59
7.4.250.0040.00416.36
7.4.240.0020.00616.60
7.4.230.0000.00716.70
7.4.220.0040.01416.61
7.4.210.0060.00916.43
7.4.200.0000.00716.38
7.4.160.0110.00316.56
7.4.150.0110.00717.40
7.4.140.0040.01417.86
7.4.130.0120.00616.43
7.4.120.0070.01116.65
7.4.110.0070.01116.28
7.4.100.0070.01016.36
7.4.90.0060.01216.38
7.4.80.0100.00719.39
7.4.70.0080.01116.20
7.4.60.0180.00316.46
7.4.50.0000.00816.51
7.4.40.0030.01316.34
7.4.30.0070.01016.60
7.4.00.0060.00915.04
7.3.330.0000.00713.25
7.3.320.0000.00513.04
7.3.310.0030.00316.15
7.3.300.0000.00716.18
7.3.290.0040.01116.36
7.3.280.0050.01216.35
7.3.270.0060.01217.40
7.3.260.0120.00616.36
7.3.240.0090.00916.26
7.3.230.0110.01416.39
7.3.210.0100.00716.39
7.3.200.0090.00919.39
7.3.190.0060.00916.29
7.3.180.0090.00616.38
7.3.170.0070.01016.27
7.3.160.0110.00416.34
7.2.330.0030.02016.51
7.2.320.0120.01216.63
7.2.310.0060.01116.61
7.2.300.0030.01416.34
7.2.290.0120.00916.50
7.2.00.0100.00719.47
7.1.100.0060.01217.93
7.1.70.0000.00717.21
7.1.60.0160.01019.40
7.1.50.0070.01717.06
7.1.00.0070.07322.40
7.0.200.0070.00316.83
7.0.140.0030.07322.21
7.0.60.0130.08019.79
7.0.50.0130.07017.72
7.0.40.0070.07020.16
7.0.30.0270.07720.02
7.0.20.0300.07320.16
7.0.10.0070.07720.20
7.0.00.0100.04320.00
5.6.280.0100.06721.07
5.6.210.0100.08020.48
5.6.200.0070.08018.18
5.6.190.0000.09720.43
5.6.180.0300.04020.45
5.6.170.0500.06720.49
5.6.160.0130.03020.44
5.6.150.0000.04318.13
5.6.140.0170.07018.11
5.6.130.0030.08318.19
5.6.120.0130.08021.14
5.6.110.0130.06720.98
5.6.100.0070.08720.99
5.6.90.0200.07321.13
5.6.80.0170.07020.37
5.5.350.0370.06320.40
5.5.340.0070.05018.01
5.5.330.0070.05020.17
5.5.320.0230.03720.31
5.5.310.0230.03320.39
5.5.300.0030.04017.93
5.5.290.0070.08018.01
5.5.280.0000.05020.73
5.5.270.0100.06020.77
5.5.260.0070.07720.64
5.5.250.0130.07020.67
5.5.240.0070.07320.23
5.4.450.0630.06319.56
5.4.440.0800.05719.25
5.4.430.0130.05319.25
5.4.420.0100.05719.31
5.4.410.0100.07719.20
5.4.400.0170.04319.40
5.4.390.0170.04319.15
5.4.380.0300.06018.68
5.4.370.0530.05718.73
5.4.360.0230.06018.53
5.4.350.0670.05318.59
5.4.340.0500.05318.53
5.4.320.0040.03712.46
5.4.310.0010.04212.45
5.4.300.0060.03512.46
5.4.290.0070.03612.45
5.4.280.0030.03712.35
5.4.270.0060.03412.35
5.4.260.0080.03412.35
5.4.250.0040.03812.35
5.4.240.0040.04112.35
5.4.230.0090.03212.34
5.4.220.0090.03312.34
5.4.210.0060.03312.34
5.4.200.0070.04312.34
5.4.190.0030.03812.34
5.4.180.0050.03612.34
5.4.170.0010.04012.35
5.4.160.0040.03712.35
5.4.150.0060.03612.34
5.4.140.0050.03812.03
5.4.130.0120.04012.01
5.4.120.0040.03611.97
5.4.110.0090.03711.96
5.4.100.0050.03511.96
5.4.90.0090.03411.96
5.4.80.0020.04111.96
5.4.70.0040.03811.96
5.4.60.0070.03711.96
5.4.50.0060.03411.96
5.4.40.0050.03411.95
5.4.30.0050.03511.95
5.4.20.0050.03711.95
5.4.10.0060.03411.95
5.4.00.0040.03611.44
5.3.290.0050.03812.80
5.3.280.0060.03712.71
5.3.270.0090.03512.72
5.3.260.0080.04612.72
5.3.250.0060.04112.72
5.3.240.0020.04012.72
5.3.230.0050.04112.71
5.3.220.0100.03312.68
5.3.210.0060.03812.68
5.3.200.0070.03512.68
5.3.190.0050.03812.68
5.3.180.0060.03512.67
5.3.170.0090.03212.67
5.3.160.0060.03512.67
5.3.150.0060.03512.67
5.3.140.0040.03912.66
5.3.130.0080.03512.65
5.3.120.0090.03412.66
5.3.110.0080.03612.66
5.3.100.0070.03712.12
5.3.90.0110.03512.08
5.3.80.0050.04112.08
5.3.70.0060.03512.08
5.3.60.0040.03712.07
5.3.50.0070.03312.00
5.3.40.0060.03712.00
5.3.30.0080.04311.94
5.3.20.0090.03211.72
5.3.10.0040.03511.69
5.3.00.0030.03711.68
5.2.170.0050.0289.18
5.2.160.0040.0289.18
5.2.150.0050.0299.18
5.2.140.0050.0309.17
5.2.130.0070.0269.14
5.2.120.0080.0249.13
5.2.110.0040.0289.14
5.2.100.0060.0269.14
5.2.90.0010.0319.14
5.2.80.0020.0349.14
5.2.70.0080.0349.13
5.2.60.0060.0369.09
5.2.50.0050.0319.06
5.2.40.0040.0299.03
5.2.30.0050.0309.01
5.2.20.0070.0349.00
5.2.10.0080.0278.92
5.2.00.0040.0298.77
5.1.60.0030.0258.07
5.1.50.0050.0238.06
5.1.40.0030.0258.04
5.1.30.0040.0268.39
5.1.20.0030.0288.41
5.1.10.0030.0278.14
5.1.00.0040.0328.14
5.0.50.0010.0246.61
5.0.40.0020.0216.47
5.0.30.0040.0306.29
5.0.20.0050.0186.26
5.0.10.0020.0226.23
5.0.00.0040.0296.23
4.4.90.0030.0154.78
4.4.80.0040.0144.75
4.4.70.0030.0164.75
4.4.60.0020.0174.75
4.4.50.0020.0224.77
4.4.40.0030.0294.71
4.4.30.0000.0184.76
4.4.20.0040.0134.84
4.4.10.0030.0174.85
4.4.00.0030.0334.75
4.3.110.0020.0154.67
4.3.100.0030.0184.67
4.3.90.0010.0164.64
4.3.80.0050.0214.59
4.3.70.0030.0234.63
4.3.60.0040.0134.62
4.3.50.0020.0164.63
4.3.40.0010.0254.54
4.3.30.0010.0243.29
4.3.20.0020.0163.26
4.3.10.0030.0143.22
4.3.00.0200.0207.08

preferences:
47.6 ms | 401 KiB | 5 Q