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";

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)
8.3.60.0100.01018.31
8.3.50.0090.01122.12
8.3.40.0070.00718.79
8.3.30.0170.00318.95
8.3.20.0140.00320.04
8.3.10.0030.00623.64
8.3.00.0000.01019.38
8.2.180.0140.00718.29
8.2.170.0040.01122.96
8.2.160.0070.01020.50
8.2.150.0110.00824.18
8.2.140.0040.00424.66
8.2.130.0150.00326.16
8.2.120.0110.00722.08
8.2.110.0090.00022.11
8.2.100.0120.00017.72
8.2.90.0040.00419.09
8.2.80.0030.00517.97
8.2.70.0050.00517.63
8.2.60.0050.00317.93
8.2.50.0040.00818.07
8.2.40.0040.00418.22
8.2.30.0000.00718.03
8.2.20.0000.00717.61
8.2.10.0000.00718.15
8.2.00.0080.00017.83
8.1.280.0040.01125.92
8.1.270.0090.00923.71
8.1.260.0080.00026.35
8.1.250.0000.00828.09
8.1.240.0060.00323.81
8.1.230.0040.00718.91
8.1.220.0040.00417.79
8.1.210.0000.00818.77
8.1.200.0090.00017.36
8.1.190.0080.00017.52
8.1.180.0000.00718.10
8.1.170.0040.00418.32
8.1.160.0000.00722.09
8.1.150.0040.00418.62
8.1.140.0030.00617.48
8.1.130.0030.00317.81
8.1.120.0060.00317.50
8.1.110.0040.00417.39
8.1.100.0000.00717.37
8.1.90.0000.00717.49
8.1.80.0030.00317.36
8.1.70.0040.00417.40
8.1.60.0000.00717.55
8.1.50.0040.00417.42
8.1.40.0030.00617.41
8.1.30.0000.00817.55
8.1.20.0060.00317.58
8.1.10.0060.00317.57
8.1.00.0050.00317.39
8.0.300.0000.01018.77
8.0.290.0000.00717.04
8.0.280.0040.00418.43
8.0.270.0000.00717.24
8.0.260.0060.00017.25
8.0.250.0000.00816.88
8.0.240.0060.00316.82
8.0.230.0090.00016.84
8.0.220.0050.00316.77
8.0.210.0040.00416.88
8.0.200.0030.00316.98
8.0.190.0000.00816.93
8.0.180.0000.00816.90
8.0.170.0050.00317.03
8.0.160.0030.00316.96
8.0.150.0000.00716.90
8.0.140.0040.00416.79
8.0.130.0060.00313.32
8.0.120.0040.00416.81
8.0.110.0040.00416.98
8.0.100.0040.00416.89
8.0.90.0040.00416.77
8.0.80.0030.01216.95
8.0.70.0080.00016.77
8.0.60.0000.00716.97
8.0.50.0000.00816.83
8.0.30.0050.01417.05
8.0.20.0140.00517.40
8.0.10.0040.00417.05
8.0.00.0090.00716.79
7.4.330.0050.00015.02
7.4.320.0030.00516.45
7.4.300.0000.00816.36
7.4.290.0030.00316.59
7.4.280.0000.00816.48
7.4.270.0000.00716.51
7.4.260.0030.00516.58
7.4.250.0050.00316.58
7.4.240.0040.00416.54
7.4.230.0070.00016.64
7.4.220.0100.01016.70
7.4.210.0080.00616.47
7.4.200.0040.00416.70
7.4.190.0060.00316.60
7.4.160.0060.00916.71
7.4.150.0080.00817.40
7.4.140.0090.00917.86
7.4.130.0140.00816.56
7.4.120.0100.00616.46
7.4.110.0120.00916.52
7.4.100.0090.00916.64
7.4.90.0120.00616.64
7.4.80.0110.00819.39
7.4.70.0060.01116.68
7.4.60.0120.00316.47
7.4.50.0060.00316.34
7.4.40.0120.00322.77
7.4.30.0040.01416.50
7.4.00.0050.01115.03
7.3.330.0050.00013.07
7.3.320.0020.00213.22
7.3.310.0000.00716.39
7.3.300.0040.00416.20
7.3.290.0000.01716.34
7.3.280.0090.00816.31
7.3.270.0130.00417.40
7.3.260.0100.00716.62
7.3.250.0130.00816.54
7.3.240.0060.00916.53
7.3.230.0090.00616.46
7.3.210.0100.00616.41
7.3.200.0060.01519.39
7.3.190.0160.00616.44
7.3.180.0100.00616.41
7.3.170.0060.01216.31
7.3.160.0150.00316.43
7.3.120.0070.01014.82
7.3.110.0070.01014.81
7.3.100.0070.00914.94
7.3.90.0050.00714.72
7.3.80.0050.00814.87
7.3.70.0060.00614.83
7.3.60.0080.00814.78
7.3.50.0080.00414.64
7.3.40.0140.00214.85
7.3.30.0070.00414.73
7.3.20.0020.01316.75
7.3.10.0090.00316.40
7.3.00.0050.00816.38
7.2.330.0110.00816.68
7.2.320.0090.00916.41
7.2.310.0100.00616.35
7.2.300.0150.00916.74
7.2.290.0060.01216.62
7.2.250.0050.01415.02
7.2.240.0110.00514.86
7.2.230.0030.01215.12
7.2.220.0070.00515.03
7.2.210.0060.00715.23
7.2.200.0020.01014.90
7.2.190.0070.00914.93
7.2.180.0090.00514.89
7.2.170.0060.00814.97
7.2.60.0140.00017.06
7.2.00.0040.01219.45
7.1.330.0080.00715.88
7.1.320.0020.01215.75
7.1.310.0100.00315.50
7.1.300.0070.00415.76
7.1.290.0040.00815.75
7.1.280.0000.01015.77
7.1.270.0070.00715.75
7.1.260.0030.00915.73
7.1.200.0190.00815.52
7.1.100.0000.01418.06
7.1.70.0000.00817.07
7.1.60.0090.00919.33
7.1.50.0100.01316.55
7.1.00.0070.07322.37
7.0.200.0100.00315.06
7.0.140.0100.06322.10
7.0.60.0130.05719.91
7.0.50.0000.09017.86
7.0.40.0100.08020.40
7.0.30.0230.07720.17
7.0.20.0300.07720.17
7.0.10.0170.06320.04
7.0.00.0070.08320.19
5.6.280.0030.07320.82
5.6.210.0030.08020.66
5.6.200.0070.07718.13
5.6.190.0100.08320.61
5.6.180.0200.05720.58
5.6.170.0230.03320.38
5.6.160.0130.06720.32
5.6.150.0100.04718.19
5.6.140.0000.09018.18
5.6.130.0030.04018.11
5.6.120.0200.07020.96
5.6.110.0070.08020.96
5.6.100.0000.04321.08
5.6.90.0070.04020.96
5.6.80.0170.07320.36
5.6.70.0100.07720.37
5.5.350.0270.07720.46
5.5.340.0170.07018.00
5.5.330.0130.08720.40
5.5.320.0270.07020.41
5.5.310.0330.07320.17
5.5.300.0100.07717.94
5.5.290.0030.08018.01
5.5.280.0100.07720.73
5.5.270.0170.07320.84
5.5.260.0100.05720.95
5.5.250.0070.08320.57
5.5.240.0100.03320.14
5.4.450.0500.05719.43
5.4.440.0670.06319.12
5.4.430.0200.04319.42
5.4.420.0730.05019.44
5.4.410.0700.04719.28
5.4.400.0830.05018.97
5.4.390.0830.05319.31
5.4.380.0400.04318.57
5.4.370.0400.06318.65
5.4.360.0400.05318.61
5.4.350.0430.04718.50
5.4.340.0330.05718.77
5.4.320.0070.03412.45
5.4.310.0070.04512.45
5.4.300.0070.03512.46
5.4.290.0080.03612.45
5.4.280.0050.05812.32
5.4.270.0110.05512.32
5.4.260.0120.05112.32
5.4.250.0090.04212.32
5.4.240.0100.04612.32
5.4.230.0090.04812.32
5.4.220.0120.04212.32
5.4.210.0120.04112.32
5.4.200.0110.10112.32
5.4.190.0200.09612.31
5.4.180.0080.05312.31
5.4.170.0100.05712.32
5.4.160.0080.05012.32
5.4.150.0130.04612.31
5.4.140.0090.05412.00
5.4.130.0110.04911.99
5.4.120.0100.04911.94
5.4.110.0090.05111.94
5.4.100.0110.04911.94
5.4.90.0110.05311.94
5.4.80.0190.07211.94
5.4.70.0130.04111.94
5.4.60.0080.04311.93
5.4.50.0110.03911.94
5.4.40.0120.03611.93
5.4.30.0070.05111.92
5.4.20.0110.04011.93
5.4.10.0080.04511.92
5.4.00.0090.04311.41
5.3.290.0030.04312.80
5.3.280.0070.05312.71
5.3.270.0130.06412.72
5.3.260.0170.05712.72
5.3.250.0140.06112.72
5.3.240.0080.06512.72
5.3.230.0120.06012.71
5.3.220.0120.05912.68
5.3.210.0160.06012.68
5.3.200.0160.05712.68
5.3.190.0130.05912.68
5.3.180.0130.06012.68
5.3.170.0130.06112.67
5.3.160.0190.04912.67
5.3.150.0160.05212.67
5.3.140.0130.05312.66
5.3.130.0150.05412.66
5.3.120.0100.05912.66
5.3.110.0160.05312.66
5.3.100.0100.05212.12
5.3.90.0150.04912.08
5.3.80.0080.04912.08
5.3.70.0140.04612.08
5.3.60.0120.05012.06
5.3.50.0130.04612.00
5.3.40.0130.04412.00
5.3.30.0080.03711.94
5.3.20.0100.03811.70
5.3.10.0110.05811.66
5.3.00.0100.04811.66
5.2.170.0110.0399.15
5.2.160.0100.0379.15
5.2.150.0060.0439.15
5.2.140.0090.0409.15
5.2.130.0100.0389.11
5.2.120.0080.0389.11
5.2.110.0070.0419.11
5.2.100.0080.0409.12
5.2.90.0100.0389.11
5.2.80.0130.0439.11
5.2.70.0070.0429.11
5.2.60.0050.0429.06
5.2.50.0080.0409.04
5.2.40.0080.0379.01
5.2.30.0070.0408.99
5.2.20.0060.0388.96
5.2.10.0090.0368.91
5.2.00.0070.0408.77
5.1.60.0050.0358.05
5.1.50.0040.0388.05
5.1.40.0060.0348.04
5.1.30.0040.0398.38
5.1.20.0110.0328.41
5.1.10.0080.0328.13
5.1.00.0050.0378.13
5.0.50.0070.0256.59
5.0.40.0070.0246.46
5.0.30.0050.0406.27
5.0.20.0040.0256.24
5.0.10.0070.0246.22
5.0.00.0050.0376.21
4.4.90.0040.0224.78
4.4.80.0060.0184.75
4.4.70.0050.0194.75
4.4.60.0030.0214.75
4.4.50.0040.0224.77
4.4.40.0030.0334.71
4.4.30.0070.0184.76
4.4.20.0030.0224.84
4.4.10.0060.0204.85
4.4.00.0040.0314.76
4.3.110.0080.0314.67
4.3.100.0070.0184.66
4.3.90.0040.0184.63
4.3.80.0040.0264.58
4.3.70.0050.0164.63
4.3.60.0060.0194.63
4.3.50.0050.0214.63
4.3.40.0050.0324.53
4.3.30.0030.0213.27
4.3.20.0040.0203.25
4.3.10.0060.0193.21
4.3.00.0000.0238.80

preferences:
49.91 ms | 400 KiB | 5 Q