3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo 'count(false): ',count(false),"\n"; echo 'count(0): ',count(0),"\n"; echo 'count(array(false)): ',count(array(false)),"\n"; echo 'count(array(0)): ',count(array(0)),"\n"; echo 'count(null): ',count(null),"\n"; echo 'count(array()): ',count(array()),"\n"; class Test {} $t = new Test(); echo 'count($t): ', count($t), "\n"; $emptyit = new EmptyIterator; echo 'count($emptyit): ', count($emptyit), "\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)
8.3.60.0090.00616.50
8.3.50.0150.00821.85
8.3.40.0070.01418.79
8.3.30.0040.01119.17
8.3.20.0140.00320.04
8.3.10.0080.00023.66
8.3.00.0100.00017.75
8.2.180.0110.01118.31
8.2.170.0110.00422.96
8.2.160.0100.00320.53
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0000.00826.16
8.2.120.0000.00822.32
8.2.110.0050.00522.25
8.2.100.0040.00817.85
8.2.90.0000.00919.22
8.2.80.0000.00917.97
8.2.70.0000.00817.75
8.2.60.0080.00018.04
8.2.50.0090.00618.07
8.2.40.0060.00318.22
8.2.30.0030.00518.07
8.2.20.0050.00317.70
8.2.10.0050.00317.94
8.2.00.0040.00417.58
8.1.280.0100.01025.92
8.1.270.0080.00022.19
8.1.260.0000.00826.35
8.1.250.0000.00728.09
8.1.240.0060.00323.87
8.1.230.0080.00419.01
8.1.220.0000.00817.74
8.1.210.0040.00418.77
8.1.200.0070.00417.23
8.1.190.0080.00017.50
8.1.180.0080.00018.10
8.1.170.0000.00818.56
8.1.160.0070.00022.04
8.1.150.0000.00718.52
8.1.140.0040.00417.27
8.1.130.0000.00717.79
8.1.120.0060.00317.35
8.1.110.0030.00517.32
8.1.100.0040.00317.36
8.1.90.0000.00717.21
8.1.80.0000.00717.24
8.1.70.0070.00017.32
8.1.60.0000.00817.54
8.1.50.0040.00417.54
8.1.40.0070.00017.49
8.1.30.0040.00417.57
8.1.20.0000.00717.57
8.1.10.0000.00817.49
8.1.00.0050.00317.40
8.0.300.0040.00418.77
8.0.290.0040.00417.28
8.0.280.0050.00218.52
8.0.270.0030.00317.18
8.0.260.0030.00317.21
8.0.250.0000.00616.98
8.0.240.0000.00816.92
8.0.230.0080.00016.96
8.0.220.0030.00316.86
8.0.210.0070.00016.87
8.0.200.0030.00316.98
8.0.190.0000.00816.85
8.0.180.0070.00016.84
8.0.170.0030.00316.78
8.0.160.0070.00016.88
8.0.150.0050.00216.93
8.0.140.0060.00316.74
8.0.130.0000.00513.38
8.0.120.0080.00016.90
8.0.110.0000.00716.94
8.0.100.0000.00816.89
8.0.90.0040.00416.89
8.0.80.0090.01216.96
8.0.70.0040.00416.96
8.0.60.0000.00716.84
8.0.50.0040.00416.82
8.0.30.0090.01217.19
8.0.20.0100.00817.40
8.0.10.0050.00216.88
8.0.00.0070.01016.70
7.4.330.0050.00015.00
7.4.320.0060.00316.57
7.4.300.0030.00316.64
7.4.290.0000.00716.61
7.4.280.0030.00416.50
7.4.270.0070.00016.46
7.4.260.0040.00416.62
7.4.250.0050.00216.54
7.4.240.0010.00616.57
7.4.230.0030.00316.66
7.4.220.0100.01616.48
7.4.210.0080.00816.63
7.4.200.0040.00416.55
7.4.190.0030.00516.48
7.4.160.0120.00416.42
7.4.150.0090.00917.40
7.4.140.0050.01317.86
7.4.130.0090.00816.42
7.4.120.0080.00916.44
7.4.110.0090.00916.64
7.4.100.0100.01016.67
7.4.90.0060.01316.65
7.4.80.0110.01319.39
7.4.70.0070.01016.38
7.4.60.0090.00616.47
7.4.50.0040.00416.56
7.4.40.0110.00722.77
7.4.30.0140.00316.57
7.4.00.0040.01215.03
7.3.330.0050.00013.33
7.3.320.0000.00513.36
7.3.310.0040.00416.14
7.3.300.0000.00716.31
7.3.290.0090.00916.32
7.3.280.0070.01016.34
7.3.270.0110.00617.40
7.3.260.0090.00916.49
7.3.250.0120.00916.46
7.3.240.0110.00616.38
7.3.230.0080.00816.47
7.3.210.0140.00316.35
7.3.200.0180.01619.39
7.3.190.0130.00316.47
7.3.180.0090.00616.49
7.3.170.0100.00616.38
7.3.160.0090.00916.30
7.3.120.0040.01214.81
7.2.330.0080.01116.62
7.2.320.0040.01416.64
7.2.310.0060.01216.57
7.2.300.0100.00716.61
7.2.290.0170.00616.68
7.2.60.0120.00316.93
7.2.00.0120.00019.54
7.1.200.0070.00715.80
7.1.100.0030.01017.98
7.1.70.0030.00616.82
7.1.60.0060.01319.33
7.1.50.0070.01416.53
7.1.00.0070.07322.40
7.0.200.0150.00014.90
7.0.140.0030.07022.04
7.0.60.0100.08020.06
7.0.50.0100.07718.00
7.0.40.0070.09020.10
7.0.30.0130.04720.09
7.0.20.0230.08020.07
7.0.10.0100.06720.07
7.0.00.0130.07720.15
5.6.280.0070.07021.15
5.6.210.0130.07320.53
5.6.200.0100.07718.15
5.6.190.0030.09320.51
5.6.180.0300.03720.49
5.6.170.0270.07320.58
5.6.160.0070.08320.54
5.6.150.0000.07018.15
5.6.140.0070.08318.18
5.6.130.0030.04018.28
5.6.120.0200.07321.14
5.6.110.0070.06721.09
5.6.100.0030.08020.97
5.6.90.0130.07321.12
5.6.80.0130.07320.37
5.6.70.3370.04020.36
5.5.350.0130.04020.50
5.5.340.0070.05318.07
5.5.330.0030.04720.37
5.5.320.0270.04720.32
5.5.310.0130.04720.35
5.5.300.0130.06717.98
5.5.290.0030.04018.08
5.5.280.0030.08720.88
5.5.270.0130.08020.86
5.5.260.0130.07320.64
5.5.250.0100.04020.59
5.5.240.0230.07320.29
5.4.450.0130.06319.17
5.4.440.0100.06319.47
5.4.430.0200.07019.46
5.4.420.0130.05719.46
5.4.410.0270.04319.49
5.4.400.0170.05719.01
5.4.390.0130.06319.25
5.4.380.0300.06018.50
5.4.370.0370.06318.72
5.4.360.0470.06318.56
5.4.350.0300.06318.52
5.4.340.0430.04018.59
5.4.320.0060.04212.50
5.4.310.0060.03712.50
5.4.300.0080.04112.50
5.4.290.0070.03712.49
5.4.280.0080.03912.37
5.4.270.0100.03712.36
5.4.260.0160.05712.36
5.4.250.0100.04712.36
5.4.240.0200.05612.37
5.4.230.0170.08612.36
5.4.220.0150.05012.35
5.4.210.0140.03712.36
5.4.200.0100.04112.36
5.4.190.0170.03512.35
5.4.180.0060.05012.35
5.4.170.0160.05512.36
5.4.160.0060.04112.36
5.4.150.0120.04112.36
5.4.140.0110.05912.04
5.4.130.0100.04812.03
5.4.120.0170.06711.98
5.4.110.0220.06311.98
5.4.100.0090.04311.98
5.4.90.0090.04911.98
5.4.80.0130.04611.98
5.4.70.0090.04311.98
5.4.60.0180.05511.98
5.4.50.0090.04811.98
5.4.40.0210.08511.97
5.4.30.0300.05611.96
5.4.20.0090.05111.96
5.4.10.0130.04211.96
5.4.00.0070.04711.45
5.3.290.0060.03912.80
5.3.280.0120.04812.71
5.3.270.0190.07212.72
5.3.260.0120.05512.72
5.3.250.0130.05612.72
5.3.240.0210.07112.72
5.3.230.0290.09112.70
5.3.220.0160.06412.68
5.3.210.0160.04012.68
5.3.200.0130.07212.68
5.3.190.0280.06212.68
5.3.180.0200.04612.68
5.3.170.0100.05012.67
5.3.160.0110.05012.68
5.3.150.0090.04212.67
5.3.140.0100.04112.66
5.3.130.0100.04512.66
5.3.120.0100.05112.66
5.3.110.0310.07712.66
5.3.100.0250.06412.12
5.3.90.0130.05312.08
5.3.80.0060.05312.08
5.3.70.0160.04912.07
5.3.60.0140.05912.06
5.3.50.0140.04712.00
5.3.40.0100.04612.00
5.3.30.0100.04611.95
5.3.20.0070.05211.73
5.3.10.0110.04511.71
5.3.00.0100.04611.69
5.2.170.0070.0429.18
5.2.160.0070.0399.18
5.2.150.0060.0469.18
5.2.140.0100.0569.18
5.2.130.0090.0419.14
5.2.120.0120.0529.14
5.2.110.0020.0419.14
5.2.100.0070.0379.14
5.2.90.0100.0579.14
5.2.80.0070.0349.14
5.2.70.0110.0609.13
5.2.60.0080.0409.09
5.2.50.0110.0869.06
5.2.40.0110.0359.04
5.2.30.0060.0389.02
5.2.20.0080.0369.00
5.2.10.0080.0358.91
5.2.00.0060.0428.78
5.1.60.0070.0248.06
5.1.50.0050.0268.06
5.1.40.0050.0268.04
5.1.30.0050.0278.39
5.1.20.0070.0288.42
5.1.10.0050.0288.14
5.1.00.0080.0258.14
5.0.50.0050.0226.63
5.0.40.0040.0206.48
5.0.30.0030.0346.30
5.0.20.0090.0256.27
5.0.10.0060.0266.25
5.0.00.0040.0386.23
4.4.90.0030.0274.78
4.4.80.0050.0154.75
4.4.70.0050.0174.76
4.4.60.0020.0174.75
4.4.50.0030.0164.77
4.4.40.0070.0234.70
4.4.30.0070.0124.75
4.4.20.0030.0174.84
4.4.10.0050.0174.85
4.4.00.0060.0364.76
4.3.110.0030.0194.67
4.3.100.0040.0214.66
4.3.90.0040.0204.64
4.3.80.0080.0344.58
4.3.70.0040.0194.63
4.3.60.0060.0184.63
4.3.50.0020.0224.62
4.3.40.0050.0344.54
4.3.30.0040.0203.29
4.3.20.0030.0203.27
4.3.10.0020.0213.23
4.3.00.0000.0237.82

preferences:
49.12 ms | 401 KiB | 5 Q