3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = ['t', 'e', 'a']; foreach ($str as &$chr) {} echo implode('', $str); foreach ($str as &$chr) {} unset($chr); echo implode('', $str); foreach ($str as $chr) {} echo implode('', $str);

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)
8.3.60.0100.01018.11
8.3.50.0070.00821.99
8.3.40.0110.00818.77
8.3.30.0110.00420.21
8.3.20.0080.00020.17
8.3.10.0040.00422.09
8.3.00.0000.00822.40
8.2.180.0110.00316.38
8.2.170.0070.01422.96
8.2.160.0100.00322.21
8.2.150.0040.00424.18
8.2.140.0000.00824.66
8.2.130.0090.00026.16
8.2.120.0080.00019.83
8.2.110.0060.00322.08
8.2.100.0080.00317.91
8.2.90.0040.00419.21
8.2.80.0050.00219.16
8.2.70.0050.00317.38
8.2.60.0030.00617.93
8.2.50.0040.00418.07
8.2.40.0000.00818.02
8.2.30.0040.00418.10
8.2.20.0080.00017.63
8.2.10.0040.00417.71
8.2.00.0060.00317.79
8.1.280.0110.00725.92
8.1.270.0040.00424.66
8.1.260.0050.00326.35
8.1.250.0050.00228.09
8.1.240.0030.00622.19
8.1.230.0060.00619.16
8.1.220.0040.00417.76
8.1.210.0000.00818.77
8.1.200.0030.00617.23
8.1.190.0030.00617.64
8.1.180.0090.00019.01
8.1.170.0000.00918.48
8.1.160.0030.00322.13
8.1.150.0000.00718.66
8.1.140.0040.00417.44
8.1.130.0030.00317.88
8.1.120.0000.00717.43
8.1.110.0080.00017.40
8.1.100.0040.00417.46
8.1.90.0080.00017.33
8.1.80.0040.00417.41
8.1.70.0030.00317.45
8.1.60.0000.00817.53
8.1.50.0070.00017.36
8.1.40.0030.00517.50
8.1.30.0050.00317.45
8.1.20.0050.00317.58
8.1.10.0000.00717.49
8.1.00.0080.00017.39
8.0.300.0040.00418.77
8.0.290.0050.00217.18
8.0.280.0070.00018.41
8.0.270.0040.00417.13
8.0.260.0000.00716.68
8.0.250.0060.00616.92
8.0.240.0040.00416.89
8.0.230.0030.00316.84
8.0.220.0040.00416.92
8.0.210.0000.00816.74
8.0.200.0030.00516.83
8.0.190.0050.00516.95
8.0.180.0070.00016.93
8.0.170.0040.00416.79
8.0.160.0030.00416.91
8.0.150.0070.00016.70
8.0.140.0030.00316.89
8.0.130.0030.00313.30
8.0.120.0000.00816.85
8.0.110.0060.00316.91
8.0.100.0050.00316.69
8.0.90.0040.00316.78
8.0.80.0090.00916.81
8.0.70.0000.00716.75
8.0.60.0030.00616.95
8.0.50.0040.00416.76
8.0.30.0080.01316.88
8.0.20.0090.00917.40
8.0.10.0050.00216.82
8.0.00.0070.01216.70
7.4.330.0050.00015.14
7.4.320.0050.00216.46
7.4.300.0030.00316.54
7.4.290.0030.00316.62
7.4.280.0030.00316.48
7.4.270.0070.00016.47
7.4.260.0000.00613.38
7.4.250.0030.00316.55
7.4.240.0020.00616.46
7.4.230.0000.00716.56
7.4.220.0040.01316.46
7.4.210.0090.00716.60
7.4.200.0030.00316.40
7.4.190.0050.00316.45
7.4.160.0060.00916.48
7.4.150.0080.01217.40
7.4.140.0070.01017.86
7.4.130.0060.01116.49
7.4.120.0080.00916.46
7.4.110.0130.00316.47
7.4.100.0100.00716.45
7.4.90.0130.00316.64
7.4.80.0100.01019.39
7.4.70.0070.01016.38
7.4.60.0110.00716.53
7.4.50.0080.00016.59
7.4.40.0040.01222.77
7.4.30.0090.00916.52
7.4.00.0070.01014.79
7.3.330.0030.00312.99
7.3.320.0030.00313.19
7.3.310.0070.00016.08
7.3.300.0050.00216.21
7.3.290.0090.00916.30
7.3.280.0090.01016.23
7.3.270.0080.00817.40
7.3.260.0170.00616.48
7.3.250.0120.00816.30
7.3.240.0100.01116.21
7.3.230.0130.00316.39
7.3.210.0140.00816.32
7.3.200.0150.00919.39
7.3.190.0100.00416.50
7.3.180.0060.01316.59
7.3.170.0000.01516.46
7.3.160.0130.00616.41
7.3.120.0030.01514.74
7.2.330.0110.00716.65
7.2.320.0170.00016.36
7.2.310.0050.01116.48
7.2.300.0100.00616.62
7.2.290.0070.01016.76
7.2.00.0040.01519.54
7.1.200.0090.00315.80
7.1.100.0090.00618.21
7.1.70.0040.00417.29
7.1.60.0100.01419.43
7.1.50.0200.01034.45
7.1.00.0000.03722.45
7.0.200.0030.00716.75
7.0.140.0000.07722.02
7.0.60.0070.08319.82
7.0.50.0100.03317.82
7.0.40.0130.05020.40
7.0.30.0370.07020.02
7.0.20.0100.04720.16
7.0.10.0200.08020.15
7.0.00.0030.04320.12
5.6.280.0130.06320.90
5.6.210.0130.05320.70
5.6.200.0030.04018.11
5.6.190.0030.04320.40
5.6.180.0270.07320.43
5.6.170.0400.06720.41
5.6.160.0200.07020.46
5.6.150.0030.04018.18
5.6.140.0100.05318.18
5.6.130.0070.06318.08
5.6.120.0070.08320.98
5.6.110.0070.07320.94
5.6.100.0100.08021.10
5.6.90.0030.07021.10
5.6.80.0070.03720.41
5.6.70.0230.03320.47
5.5.350.0070.08020.43
5.5.340.0070.05317.92
5.5.330.0070.03720.56
5.5.320.0270.05320.17
5.5.310.0230.04720.24
5.5.300.0000.07717.89
5.5.290.0130.07717.90
5.5.280.0130.07720.89
5.5.270.0130.08020.76
5.5.260.0100.07720.75
5.5.250.0200.07320.65
5.5.240.0000.04020.12
5.4.450.0230.05019.32
5.4.440.0270.05719.61
5.4.430.0270.05719.63
5.4.420.0270.05319.54
5.4.410.0230.05019.50
5.4.400.0330.06318.70
5.4.390.0470.05318.61
5.4.380.0200.05318.74
5.4.370.0200.05718.67
5.4.360.0300.04318.58
5.4.350.0060.04011.97
5.4.340.0110.04311.97
5.4.320.0040.03712.46
5.4.310.0060.05712.45
5.4.300.0050.03712.46
5.4.290.0070.03812.45
5.4.280.0120.04612.32
5.4.270.0070.04212.32
5.4.260.0060.03912.32
5.4.250.0090.03512.32
5.4.240.0070.03512.32
5.4.230.0080.03612.31
5.4.220.0100.04212.31
5.4.210.0060.04412.32
5.4.200.0070.03712.31
5.4.190.0060.04112.31
5.4.180.0080.04312.31
5.4.170.0080.03712.32
5.4.160.0090.04612.32
5.4.150.0080.04812.31
5.4.140.0100.05012.00
5.4.130.0080.04411.99
5.4.120.0070.03911.95
5.4.110.0090.03511.94
5.4.100.0080.03811.94
5.4.90.0040.04011.94
5.4.80.0060.03711.94
5.4.70.0070.03511.94
5.4.60.0060.03511.94
5.4.50.0050.03711.94
5.4.40.0100.03211.93
5.4.30.0070.03711.92
5.4.20.0080.04311.92
5.4.10.0090.04611.92
5.4.00.0040.04611.41
5.3.290.0080.04012.80
5.3.280.0070.05212.70
5.3.270.0100.04012.72
5.3.260.0070.05812.72
5.3.250.0060.03812.72
5.3.240.0120.04912.71
5.3.230.0120.03812.71
5.3.220.0140.03312.68
5.3.210.0100.03712.68
5.3.200.0090.03512.68
5.3.190.0070.03812.68
5.3.180.0130.04712.67
5.3.170.0080.03512.66
5.3.160.0090.03612.67
5.3.150.0050.03812.67
5.3.140.0050.03812.66
5.3.130.0040.04212.66
5.3.120.0050.04612.66
5.3.110.0090.04012.66
5.3.100.0070.03912.12
5.3.90.0060.04312.08
5.3.80.0080.03812.07
5.3.70.0110.04112.08
5.3.60.0110.03712.06
5.3.50.0090.03812.00
5.3.40.0090.04412.00
5.3.30.0070.03911.94
5.3.20.0100.03311.70
5.3.10.0060.03511.67
5.3.00.0080.03411.66
5.2.170.0060.0299.15
5.2.160.0070.0279.15
5.2.150.0110.0269.15
5.2.140.0100.0359.15
5.2.130.0050.0399.11
5.2.120.0060.0289.11
5.2.110.0040.0319.11
5.2.100.0040.0309.12
5.2.90.0070.0279.11
5.2.80.0050.0349.11
5.2.70.0090.0419.10
5.2.60.0040.0329.06
5.2.50.0080.0279.03
5.2.40.0050.0289.00
5.2.30.0100.0328.99
5.2.20.0090.0338.97
5.2.10.0090.0318.90
5.2.00.0110.0378.76
5.1.60.0090.0278.05
5.1.50.0070.0318.04
5.1.40.0080.0288.03
5.1.30.0060.0308.37
5.1.20.0050.0408.40
5.1.10.0050.0328.12
5.1.00.0070.0328.12
5.0.50.0040.0266.60
5.0.40.0060.0266.46
5.0.30.0030.0326.27
5.0.20.0030.0216.25
5.0.10.0040.0286.22
5.0.00.0050.0306.20
4.4.90.0040.0144.78
4.4.80.0050.0144.76
4.4.70.0020.0164.75
4.4.60.0030.0174.76
4.4.50.0020.0164.77
4.4.40.0040.0244.71
4.4.30.0040.0174.76
4.4.20.0030.0174.84
4.4.10.0010.0184.85
4.4.00.0030.0244.76
4.3.110.0020.0174.66
4.3.100.0010.0174.66
4.3.90.0030.0154.63
4.3.80.0040.0344.58
4.3.70.0040.0234.63
4.3.60.0020.0174.63
4.3.50.0080.0114.63
4.3.40.0030.0244.54
4.3.30.0040.0193.27
4.3.20.0010.0233.25
4.3.10.0020.0203.21
4.3.00.0030.0207.02

preferences:
43.65 ms | 401 KiB | 5 Q