3v4l.org

run code in 300+ PHP versions simultaneously
<?php $emptyit = new EmptyIterator; echo 'count($emptyit): ', count($emptyit), "\n"; // obj w/no properties not empty PHP5+ echo '$emptyit->count(): ', $emptyit->count(), "\n"; $n=0; foreach ($emptyit as $e) { $n++; } echo $n;

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)
8.3.60.0120.00616.63
8.3.50.0160.00822.05
8.3.40.0060.01218.72
8.3.30.0070.00719.04
8.3.20.0040.00420.34
8.3.10.0000.00823.66
8.3.00.0080.00319.38
8.2.180.0180.00318.63
8.2.170.0110.00722.96
8.2.160.0160.00320.34
8.2.150.0050.00324.18
8.2.140.0070.00024.66
8.2.130.0040.01126.16
8.2.120.0070.00022.13
8.2.110.0060.00320.23
8.2.100.0120.00017.78
8.2.90.0000.00818.34
8.2.80.0030.00518.91
8.2.70.0000.00817.50
8.2.60.0000.00817.93
8.2.50.0000.00818.07
8.2.40.0030.00618.22
8.2.30.0030.00718.06
8.2.20.0080.00017.79
8.2.10.0040.00418.05
8.2.00.0060.00317.68
8.1.280.0070.00725.92
8.1.270.0000.01023.96
8.1.260.0040.00426.35
8.1.250.0050.00228.09
8.1.240.0090.00023.97
8.1.230.0040.00719.16
8.1.220.0000.00817.78
8.1.210.0080.00018.77
8.1.200.0070.00317.13
8.1.190.0080.00017.35
8.1.180.0000.00818.10
8.1.170.0080.00018.59
8.1.160.0060.00318.87
8.1.150.0000.00820.13
8.1.140.0000.00717.36
8.1.130.0030.00317.86
8.1.120.0000.01017.32
8.1.110.0000.00817.34
8.1.100.0030.00317.46
8.1.90.0000.00717.45
8.1.80.0070.00017.45
8.1.70.0070.00017.33
8.1.60.0040.00417.64
8.1.50.0090.00017.55
8.1.40.0040.00417.39
8.1.30.0000.00817.63
8.1.20.0000.00717.71
8.1.10.0040.00417.46
8.1.00.0040.00417.43
8.0.300.0040.00418.77
8.0.290.0050.00216.75
8.0.280.0030.00318.45
8.0.270.0070.00017.30
8.0.260.0000.00618.37
8.0.250.0030.00316.95
8.0.240.0090.00016.86
8.0.230.0050.00516.96
8.0.220.0000.00716.77
8.0.210.0040.00416.78
8.0.200.0040.00416.86
8.0.190.0000.00716.91
8.0.180.0040.00416.89
8.0.170.0040.00417.03
8.0.160.0030.00316.96
8.0.150.0070.00016.87
8.0.140.0080.00016.90
8.0.130.0000.00713.45
8.0.120.0050.00216.84
8.0.110.0050.00316.77
8.0.100.0040.00416.76
8.0.90.0040.00417.00
8.0.80.0110.00416.93
8.0.70.0000.00816.89
8.0.60.0040.00417.07
8.0.50.0020.00516.77
8.0.30.0120.00717.18
8.0.20.0050.01417.40
8.0.10.0040.00417.18
8.0.00.0090.00816.86
7.4.330.0030.00315.12
7.4.320.0030.00516.54
7.4.300.0030.00316.61
7.4.290.0040.00416.57
7.4.280.0040.00416.51
7.4.270.0040.00416.50
7.4.260.0000.00816.51
7.4.250.0070.00016.57
7.4.240.0060.00216.54
7.4.230.0000.00716.46
7.4.220.0090.00916.50
7.4.210.0070.00816.51
7.4.200.0080.00016.41
7.4.190.0040.00416.76
7.4.160.0130.00316.46
7.4.150.0060.01217.40
7.4.140.0090.01017.86
7.4.130.0110.00716.60
7.4.120.0120.00416.55
7.4.110.0090.00916.66
7.4.100.0120.00616.31
7.4.90.0120.00916.54
7.4.80.0120.00919.39
7.4.70.0100.00616.47
7.4.60.0160.00016.80
7.4.50.0030.00516.52
7.4.40.0070.01122.77
7.4.30.0140.00316.40
7.4.00.0040.01114.87
7.3.330.0050.00013.16
7.3.320.0060.00013.06
7.3.310.0070.00016.33
7.3.300.0000.00716.31
7.3.290.0110.00616.25
7.3.280.0110.00616.30
7.3.270.0150.00317.40
7.3.260.0150.00316.31
7.3.250.0140.00616.43
7.3.240.0120.00416.38
7.3.230.0080.00816.46
7.3.210.0090.00916.41
7.3.200.0080.00919.39
7.3.190.0170.00316.48
7.3.180.0090.00616.43
7.3.170.0060.00916.47
7.3.160.0050.01416.36
7.3.120.0060.01214.73
7.2.330.0030.01316.85
7.2.320.0100.00716.79
7.2.310.0090.01316.60
7.2.300.0080.00816.85
7.2.290.0110.00616.70
7.2.60.0030.01016.93
7.2.00.0030.00619.19
7.1.200.0120.00215.48
7.1.100.0100.00317.83
7.1.70.0000.00716.79
7.1.60.0030.01519.33
7.1.50.0030.00916.84
7.1.00.0000.07722.31
7.0.200.0670.00014.84
7.0.140.0000.07322.00
7.0.60.0070.08019.86
7.0.50.0200.05717.78
7.0.40.0030.09020.12
7.0.30.0200.07320.21
7.0.20.0330.07020.18
7.0.10.0070.09320.30
7.0.00.0070.04720.12
5.6.280.0130.06320.91
5.6.210.0130.08020.62
5.6.200.0070.08018.18
5.6.190.0070.07020.67
5.6.180.0300.05320.27
5.6.170.0170.05320.33
5.6.160.0000.09720.44
5.6.150.0000.09018.16
5.6.140.0100.08018.18
5.6.130.0030.04018.20
5.6.120.0200.06720.98
5.6.110.0070.08320.98
5.6.100.0070.07020.98
5.6.90.0100.06720.96
5.6.80.0030.03720.41
5.6.70.4000.03720.38
5.5.350.0100.05720.29
5.5.340.0070.08318.02
5.5.330.0070.06720.37
5.5.320.0500.06320.26
5.5.310.0300.07020.28
5.5.300.0170.05717.89
5.5.290.0070.03717.89
5.5.280.0100.04020.64
5.5.270.0100.08320.87
5.5.260.0070.04320.84
5.5.250.0030.04020.61
5.5.240.0100.06320.18
5.4.450.0200.05319.64
5.4.440.0230.06719.54
5.4.430.0200.05719.53
5.4.420.0330.07719.23
5.4.410.0270.05719.47
5.4.400.0230.04719.27
5.4.390.0200.05718.77
5.4.380.0430.06718.69
5.4.370.0270.05318.67
5.4.360.0370.05318.70
5.4.350.0300.06018.72
5.4.340.0330.07718.50
5.4.320.0080.03712.46
5.4.310.0060.03712.45
5.4.300.0060.03712.46
5.4.290.0090.05112.46
5.4.280.0070.03512.32
5.4.270.0050.03812.32
5.4.260.0060.03812.32
5.4.250.0060.03912.32
5.4.240.0050.03712.32
5.4.230.0070.04012.32
5.4.220.0100.03312.32
5.4.210.0070.03412.32
5.4.200.0070.03912.31
5.4.190.0070.03612.31
5.4.180.0070.03512.31
5.4.170.0080.03412.32
5.4.160.0050.03712.32
5.4.150.0120.04312.31
5.4.140.0060.03712.00
5.4.130.0050.03911.98
5.4.120.0040.03711.94
5.4.110.0040.03711.94
5.4.100.0040.04411.94
5.4.90.0040.03911.94
5.4.80.0050.03811.94
5.4.70.0060.03611.94
5.4.60.0090.03211.93
5.4.50.0070.04211.94
5.4.40.0070.03511.93
5.4.30.0070.04011.92
5.4.20.0070.03411.92
5.4.10.0080.03311.92
5.4.00.0090.03311.41
5.3.290.0050.04112.80
5.3.280.0080.03712.71
5.3.270.0070.03812.72
5.3.260.0060.03912.72
5.3.250.0120.03212.72
5.3.240.0070.03612.72
5.3.230.0080.03912.71
5.3.220.0080.03712.68
5.3.210.0060.04012.68
5.3.200.0070.03712.68
5.3.190.0110.03612.67
5.3.180.0080.03812.67
5.3.170.0100.04612.67
5.3.160.0070.04012.67
5.3.150.0060.04212.67
5.3.140.0070.04112.66
5.3.130.0140.03712.66
5.3.120.0100.04612.66
5.3.110.0110.04612.66
5.3.100.0050.04312.12
5.3.90.0060.03712.09
5.3.80.0070.03912.07
5.3.70.0060.03612.07
5.3.60.0060.03612.06
5.3.50.0070.03612.00
5.3.40.0060.03712.00
5.3.30.0070.03511.94
5.3.20.0090.04211.70
5.3.10.0060.04911.66
5.3.00.0080.03411.66
5.2.170.0040.0319.15
5.2.160.0040.0309.15
5.2.150.0060.0299.15
5.2.140.0020.0379.15
5.2.130.0050.0289.10
5.2.120.0060.0279.11
5.2.110.0050.0299.12
5.2.100.0060.0289.11
5.2.90.0070.0279.11
5.2.80.0050.0309.11
5.2.70.0040.0329.11
5.2.60.0080.0329.06
5.2.50.0070.0279.03
5.2.40.0070.0259.00
5.2.30.0030.0318.98
5.2.20.0040.0328.97
5.2.10.0030.0298.91
5.2.00.0020.0308.77
5.1.60.0030.0248.05
5.1.50.0040.0258.05
5.1.40.0050.0238.04
5.1.30.0050.0258.39
5.1.20.0070.0238.41
5.1.10.0010.0288.14
5.1.00.0070.0218.13
5.0.50.0040.0206.60
5.0.40.0040.0196.46
5.0.30.0050.0306.27
5.0.20.0030.0196.25
5.0.10.0020.0216.23
5.0.00.0050.0336.21
4.4.90.0020.0164.77
4.4.80.0030.0154.76
4.4.70.0020.0164.75
4.4.60.0050.0134.75
4.4.50.0010.0174.77
4.4.40.0030.0254.71
4.4.30.0030.0154.76
4.4.20.0030.0154.84
4.4.10.0050.0134.85
4.4.00.0030.0244.76
4.3.110.0020.0164.67
4.3.100.0030.0144.66
4.3.90.0030.0174.63
4.3.80.0030.0244.59
4.3.70.0030.0144.63
4.3.60.0020.0154.63
4.3.50.0050.0134.63
4.3.40.0060.0214.54
4.3.30.0020.0163.27
4.3.20.0000.0173.25
4.3.10.0010.0173.21
4.3.00.0000.0277.81

preferences:
38.17 ms | 401 KiB | 5 Q