3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array('a', 'b'); foreach ($a as $key => $val) { $a[1] .= 'a'; var_dump($val); } 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)
8.3.40.0140.00018.65
8.3.30.0140.00319.01
8.3.20.0070.00020.16
8.3.10.0060.00320.61
8.3.00.0080.00019.25
8.2.170.0110.00422.96
8.2.160.0030.01020.39
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0060.00322.22
8.2.110.0060.00320.43
8.2.100.0070.00418.22
8.2.90.0030.00519.26
8.2.80.0060.00317.97
8.2.70.0030.00617.63
8.2.60.0060.00318.04
8.2.50.0080.00018.07
8.2.40.0040.00418.16
8.2.30.0000.00717.99
8.2.20.0040.00417.84
8.2.10.0000.00717.99
8.2.00.0040.00417.74
8.1.270.0050.00323.97
8.1.260.0000.00726.35
8.1.250.0060.00328.09
8.1.240.0060.00323.72
8.1.230.0040.00719.18
8.1.220.0040.00417.79
8.1.210.0070.00018.77
8.1.200.0060.00317.23
8.1.190.0080.00017.10
8.1.180.0080.00018.10
8.1.170.0090.00018.71
8.1.160.0000.00721.87
8.1.150.0000.00718.83
8.1.140.0050.00317.51
8.1.130.0000.00717.93
8.1.120.0040.00417.33
8.1.110.0030.00617.41
8.1.100.0040.00417.38
8.1.90.0000.00717.36
8.1.80.0000.00817.44
8.1.70.0000.00817.43
8.1.60.0050.00517.57
8.1.50.0030.00617.41
8.1.40.0060.00317.50
8.1.30.0040.00417.50
8.1.20.0000.00717.55
8.1.10.0000.00717.50
8.1.00.0000.00717.45
8.0.300.0040.00418.77
8.0.290.0070.00016.63
8.0.280.0040.00418.50
8.0.270.0000.00717.25
8.0.260.0040.00417.29
8.0.250.0030.00316.99
8.0.240.0000.00616.99
8.0.230.0080.00016.95
8.0.220.0030.00316.89
8.0.210.0070.00016.83
8.0.200.0000.00816.84
8.0.190.0060.00516.91
8.0.180.0070.00016.94
8.0.170.0000.00816.78
8.0.160.0070.00016.84
8.0.150.0050.00216.73
8.0.140.0050.00316.83
8.0.130.0000.00613.36
8.0.120.0080.00016.86
8.0.110.0040.00416.91
8.0.100.0040.00416.71
8.0.90.0030.00316.80
8.0.80.0060.00916.88
8.0.70.0000.00716.86
8.0.60.0040.00416.79
8.0.50.0000.00816.73
8.0.30.0130.00817.04
8.0.20.0100.00917.40
8.0.10.0040.00416.86
8.0.00.0090.00916.71
7.4.330.0050.00015.09
7.4.320.0060.00016.53
7.4.300.0030.00316.49
7.4.290.0040.00416.63
7.4.280.0040.00416.41
7.4.270.0000.00716.50
7.4.260.0000.00616.47
7.4.250.0000.00716.48
7.4.240.0050.00316.58
7.4.230.0000.00816.63
7.4.220.0130.00716.71
7.4.210.0080.00616.69
7.4.200.0030.00316.35
7.4.160.0080.00816.69
7.4.150.0140.00417.40
7.4.140.0100.00917.86
7.4.130.0090.00716.32
7.4.120.0060.01116.46
7.4.110.0070.01016.53
7.4.100.0130.00316.55
7.4.90.0090.01216.62
7.4.80.0110.00719.39
7.4.70.0100.00616.46
7.4.60.0040.01216.55
7.4.50.0000.00516.28
7.4.40.0120.00316.36
7.4.30.0180.00016.29
7.4.00.0030.01314.91
7.3.330.0050.00013.24
7.3.320.0050.00013.17
7.3.310.0040.00416.34
7.3.300.0030.00316.34
7.3.290.0000.01416.42
7.3.280.0090.00816.34
7.3.270.0090.00917.40
7.3.260.0180.00016.67
7.3.250.0100.00916.27
7.3.240.0130.00416.44
7.3.230.0050.01316.39
7.3.210.0140.00316.44
7.3.200.0110.01119.39
7.3.190.0100.01016.41
7.3.180.0000.02216.57
7.3.170.0080.00816.30
7.3.160.0140.00316.48
7.2.330.0150.00316.60
7.2.320.0030.01516.45
7.2.310.0100.00716.71
7.2.300.0100.01016.43
7.2.290.0160.00416.48
7.2.00.0000.01519.23
7.1.100.0000.01417.86
7.1.70.0000.00917.34
7.1.60.0140.01119.32
7.1.50.0060.01217.02
7.1.00.0000.08022.43
7.0.200.0000.01016.77
7.0.140.0030.07322.10
7.0.60.0170.07720.07
7.0.50.0030.08317.78
7.0.40.0070.08320.07
7.0.30.0200.05720.13
7.0.20.0330.07320.23
7.0.10.0030.04720.09
7.0.00.0030.04320.30
5.6.280.0000.07721.11
5.6.210.0100.07320.72
5.6.200.0000.04318.22
5.6.190.0070.08720.63
5.6.180.0470.08020.32
5.6.170.0170.08320.39
5.6.160.0000.04320.60
5.6.150.0130.07318.15
5.6.140.0070.08018.18
5.6.130.0170.07018.20
5.6.120.0030.04020.80
5.6.110.0000.04321.08
5.6.100.0130.04320.96
5.6.90.0030.04320.96
5.6.80.0030.07020.39
5.5.350.0270.07320.36
5.5.340.0100.08017.92
5.5.330.0100.05320.12
5.5.320.0300.05720.20
5.5.310.0270.06020.31
5.5.300.0030.05017.92
5.5.290.0130.04717.86
5.5.280.0000.04720.73
5.5.270.0100.08320.85
5.5.260.0170.06020.86
5.5.250.0100.07020.77
5.5.240.0100.03320.37
5.4.450.0000.05719.58
5.4.440.0800.05319.46
5.4.430.0800.06719.54
5.4.420.0670.00019.52
5.4.410.0630.00019.21
5.4.400.0700.00019.16
5.4.390.0600.00019.16
5.4.380.0630.00019.18
5.4.370.0670.00018.95
5.4.360.0630.00018.92
5.4.350.0630.00019.07
5.4.340.0800.00018.98
5.4.320.0050.03712.45
5.4.310.0060.03912.45
5.4.300.0060.03612.46
5.4.290.0060.04112.46
5.4.280.0040.03612.35
5.4.270.0040.03612.35
5.4.260.0040.03912.34
5.4.250.0100.03312.35
5.4.240.0080.04112.35
5.4.230.0060.04012.34
5.4.220.0070.03312.34
5.4.210.0080.03912.34
5.4.200.0070.04212.34
5.4.190.0070.03712.34
5.4.180.0040.03912.34
5.4.170.0100.03212.35
5.4.160.0080.03312.34
5.4.150.0020.04012.34
5.4.140.0080.03512.02
5.4.130.0050.04812.01
5.4.120.0080.03811.97
5.4.110.0070.03311.97
5.4.100.0060.03411.97
5.4.90.0050.03711.96
5.4.80.0080.03511.97
5.4.70.0060.03411.96
5.4.60.0060.03311.96
5.4.50.0060.03411.96
5.4.40.0040.03511.95
5.4.30.0040.03511.95
5.4.20.0090.03211.95
5.4.10.0100.02911.95
5.4.00.0050.03611.44
5.3.290.0050.04012.80
5.3.280.0050.03812.70
5.3.270.0080.03712.73
5.3.260.0110.04612.72
5.3.250.0060.03912.72
5.3.240.0050.03812.72
5.3.230.0050.03712.70
5.3.220.0050.03812.68
5.3.210.0100.03412.68
5.3.200.0050.03612.68
5.3.190.0050.03812.68
5.3.180.0050.03712.67
5.3.170.0040.03812.66
5.3.160.0040.03712.68
5.3.150.0040.03812.68
5.3.140.0070.03412.66
5.3.130.0020.04112.66
5.3.120.0050.03912.66
5.3.110.0090.03712.66
5.3.100.0060.03512.12
5.3.90.0080.03712.08
5.3.80.0050.03612.08
5.3.70.0080.03312.07
5.3.60.0030.03812.06
5.3.50.0050.03612.00
5.3.40.0050.03712.00
5.3.30.0050.03511.94
5.3.20.0050.03611.72
5.3.10.0050.03511.69
5.3.00.0030.03811.68
5.2.170.0070.0279.18
5.2.160.0060.0279.18
5.2.150.0050.0299.18
5.2.140.0050.0299.17
5.2.130.0040.0299.13
5.2.120.0030.0299.14
5.2.110.0050.0299.14
5.2.100.0050.0289.14
5.2.90.0080.0259.14
5.2.80.0060.0289.13
5.2.70.0020.0339.13
5.2.60.0020.0359.09
5.2.50.0060.0279.05
5.2.40.0070.0249.04
5.2.30.0040.0309.01
5.2.20.0070.0309.00
5.2.10.0010.0318.92
5.2.00.0050.0368.77
5.1.60.0030.0258.06
5.1.50.0080.0218.06
5.1.40.0010.0278.04
5.1.30.0070.0308.39
5.1.20.0050.0258.41
5.1.10.0080.0228.13
5.1.00.0060.0248.13
5.0.50.0040.0206.62
5.0.40.0030.0226.47
5.0.30.0050.0326.29
5.0.20.0040.0186.26
5.0.10.0030.0206.24
5.0.00.0050.0296.23
4.4.90.0010.0174.78
4.4.80.0030.0154.76
4.4.70.0030.0154.75
4.4.60.0040.0144.76
4.4.50.0020.0164.77
4.4.40.0040.0244.71
4.4.30.0050.0134.76
4.4.20.0030.0154.84
4.4.10.0030.0154.85
4.4.00.0010.0264.75
4.3.110.0030.0184.67
4.3.100.0010.0194.66
4.3.90.0010.0164.64
4.3.80.0040.0224.58
4.3.70.0030.0144.63
4.3.60.0020.0214.63
4.3.50.0050.0194.63
4.3.40.0020.0244.54
4.3.30.0020.0153.28
4.3.20.0030.0153.26
4.3.10.0020.0153.22
4.3.00.0030.02016.50

preferences:
44.68 ms | 400 KiB | 5 Q