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($t), "\n"; // not empty; see below: echo 'empty(null):', empty(null), "\n"; echo 'empty(array():',empty(array()),"\n"; // obj w/no properties not empty PHP5+ echo 'empty($t):',empty($t),"\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)
8.3.60.0110.00718.43
8.3.50.0080.01321.96
8.3.40.0110.00718.88
8.3.30.0080.00618.92
8.3.20.0070.00020.00
8.3.10.0080.00023.71
8.3.00.0040.00817.38
8.2.180.0210.00018.45
8.2.170.0040.01122.96
8.2.160.0030.01020.52
8.2.150.0000.00824.18
8.2.140.0040.00424.66
8.2.130.0030.00626.16
8.2.120.0080.00022.26
8.2.110.0080.00022.20
8.2.100.0060.00617.78
8.2.90.0050.00319.23
8.2.80.0040.00417.97
8.2.70.0030.00617.63
8.2.60.0050.00317.93
8.2.50.0040.00418.07
8.2.40.0060.00318.03
8.2.30.0040.00417.95
8.2.20.0040.00417.55
8.2.10.0080.00017.95
8.2.00.0070.00317.55
8.1.280.0110.00425.92
8.1.270.0090.00024.04
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0040.00423.71
8.1.230.0100.00519.10
8.1.220.0060.00317.74
8.1.210.0050.00318.77
8.1.200.0090.00017.23
8.1.190.0040.00417.40
8.1.180.0030.00618.10
8.1.170.0040.00418.49
8.1.160.0000.00721.86
8.1.150.0030.00618.50
8.1.140.0080.00017.30
8.1.130.0000.00717.76
8.1.120.0070.00317.34
8.1.110.0040.00417.30
8.1.100.0000.00817.36
8.1.90.0000.00717.34
8.1.80.0000.00717.31
8.1.70.0030.00317.30
8.1.60.0040.00417.34
8.1.50.0040.00417.46
8.1.40.0040.00417.46
8.1.30.0040.00417.50
8.1.20.0050.00217.54
8.1.10.0060.00317.39
8.1.00.0000.00717.27
8.0.300.0070.00018.77
8.0.290.0060.00317.18
8.0.280.0070.00018.31
8.0.270.0070.00017.12
8.0.260.0030.00317.25
8.0.250.0000.00616.97
8.0.240.0100.00016.92
8.0.230.0080.00416.93
8.0.220.0000.00716.91
8.0.210.0080.00016.80
8.0.200.0080.00016.86
8.0.190.0040.00416.83
8.0.180.0040.00416.88
8.0.170.0070.00016.93
8.0.160.0030.00316.75
8.0.150.0080.00016.87
8.0.140.0000.00816.86
8.0.130.0000.00613.36
8.0.120.0050.00316.90
8.0.110.0030.00616.84
8.0.100.0070.00016.94
8.0.90.0060.00316.71
8.0.80.0150.00016.88
8.0.70.0040.00416.88
8.0.60.0040.00416.71
8.0.50.0040.00416.83
8.0.30.0060.01216.87
8.0.20.0100.00817.40
8.0.10.0040.00416.82
8.0.00.0120.00716.56
7.4.330.0000.00515.10
7.4.320.0060.00316.60
7.4.300.0000.00716.56
7.4.290.0000.00616.46
7.4.280.0000.00716.46
7.4.270.0030.00516.60
7.4.260.0030.00316.58
7.4.250.0000.00716.59
7.4.240.0040.00316.54
7.4.230.0030.00316.54
7.4.220.0110.00716.68
7.4.210.0110.00616.53
7.4.200.0030.00316.29
7.4.190.0050.00216.45
7.4.160.0100.00716.30
7.4.150.0090.01217.40
7.4.140.0120.00517.86
7.4.130.0140.00316.45
7.4.120.0060.01116.50
7.4.110.0090.00916.70
7.4.100.0030.01316.44
7.4.90.0100.00716.59
7.4.80.0060.01119.39
7.4.70.0150.00816.61
7.4.60.0100.00716.44
7.4.50.0030.00616.55
7.4.40.0040.01222.77
7.4.30.0140.00316.38
7.4.00.0070.00715.05
7.3.330.0030.00313.25
7.3.320.0050.00013.29
7.3.310.0030.00516.34
7.3.300.0000.00616.30
7.3.290.0070.01116.31
7.3.280.0080.01016.33
7.3.270.0090.00917.40
7.3.260.0100.00716.36
7.3.250.0110.01316.30
7.3.240.0170.00016.44
7.3.230.0070.01016.52
7.3.210.0040.01516.40
7.3.200.0000.01819.39
7.3.190.0060.01116.36
7.3.180.0090.00916.46
7.3.170.0050.01016.32
7.3.160.0130.00916.45
7.3.120.0080.00814.87
7.2.330.0060.01616.43
7.2.320.0030.01416.69
7.2.310.0140.00816.68
7.2.300.0080.00816.79
7.2.290.0130.00616.77
7.2.60.0120.00316.99
7.2.00.0070.00719.54
7.1.200.0070.00715.68
7.1.100.0030.00918.06
7.1.70.0030.00616.82
7.1.60.0070.00719.33
7.1.50.0070.01416.51
7.1.00.0030.07722.28
7.0.200.0740.00914.78
7.0.140.0000.07722.02
7.0.60.0130.07719.92
7.0.50.0100.06017.84
7.0.40.0130.06720.21
7.0.30.0430.06720.20
7.0.20.0170.05320.26
7.0.10.0030.04720.06
7.0.00.0170.07720.09
5.6.280.0070.07320.78
5.6.210.0100.07320.47
5.6.200.0030.08018.25
5.6.190.0030.04720.55
5.6.180.0070.06020.53
5.6.170.0170.04020.51
5.6.160.0070.08320.54
5.6.150.0030.05718.18
5.6.140.0000.07018.18
5.6.130.0100.08018.18
5.6.120.0130.08021.09
5.6.110.0000.09321.01
5.6.100.0130.07720.98
5.6.90.0070.06720.95
5.6.80.0170.06320.36
5.5.350.0100.06320.47
5.5.340.0070.07718.01
5.5.330.0070.05020.27
5.5.320.0270.07720.31
5.5.310.0230.03320.33
5.5.300.0000.04318.04
5.5.290.0070.07317.95
5.5.280.0030.08320.88
5.5.270.0170.07720.79
5.5.260.0030.05020.86
5.5.250.0000.08720.55
5.5.240.0100.07320.26
5.4.450.1230.05319.54
5.4.440.0300.04319.38
5.4.430.0400.03319.47
5.4.420.0500.04319.66
5.4.410.0100.03319.18
5.4.400.1070.03019.14
5.4.390.0500.03719.00
5.4.380.0400.05718.72
5.4.370.0330.05718.76
5.4.360.0430.05718.48
5.4.350.0330.07018.74
5.4.340.0300.05718.74
5.4.320.0080.04612.51
5.4.310.0060.03712.51
5.4.300.0070.03512.51
5.4.290.0100.03312.51
5.4.280.0070.03812.38
5.4.270.0080.03712.38
5.4.260.0110.03712.38
5.4.250.0040.04512.38
5.4.240.0130.04312.38
5.4.230.0090.04112.37
5.4.220.0110.05212.37
5.4.210.0070.03712.37
5.4.200.0090.04912.37
5.4.190.0100.03612.37
5.4.180.0080.03712.36
5.4.170.0060.03912.37
5.4.160.0050.04912.37
5.4.150.0080.03712.36
5.4.140.0080.03712.05
5.4.130.0090.03412.04
5.4.120.0100.03612.00
5.4.110.0090.04212.00
5.4.100.0130.06112.00
5.4.90.0060.04012.00
5.4.80.0090.05812.00
5.4.70.0130.04112.00
5.4.60.0110.03412.00
5.4.50.0080.04011.99
5.4.40.0050.03811.98
5.4.30.0100.03911.98
5.4.20.0080.05411.98
5.4.10.0080.04111.98
5.4.00.0080.03811.47
5.3.290.0080.03712.80
5.3.280.0090.03712.70
5.3.270.0080.05412.72
5.3.260.0130.05212.72
5.3.250.0140.04512.72
5.3.240.0030.04812.72
5.3.230.0110.03712.71
5.3.220.0090.04412.68
5.3.210.0080.04112.68
5.3.200.0090.03812.68
5.3.190.0140.06112.68
5.3.180.0170.06912.67
5.3.170.0120.06112.67
5.3.160.0120.03512.68
5.3.150.0110.04312.67
5.3.140.0110.06412.66
5.3.130.0100.05312.66
5.3.120.0140.04712.66
5.3.110.0100.05612.66
5.3.100.0190.04012.12
5.3.90.0130.04612.08
5.3.80.0080.05312.07
5.3.70.0100.05812.07
5.3.60.0120.05512.07
5.3.50.0070.05612.00
5.3.40.0110.05312.00
5.3.30.0140.05911.95
5.3.20.0170.05911.73
5.3.10.0100.05811.70
5.3.00.0090.05511.69
5.2.170.0120.0499.19
5.2.160.0070.0469.18
5.2.150.0110.0449.19
5.2.140.0100.0469.18
5.2.130.0090.0459.14
5.2.120.0080.0439.14
5.2.110.0060.0349.15
5.2.100.0070.0329.14
5.2.90.0060.0429.14
5.2.80.0050.0389.14
5.2.70.0080.0339.14
5.2.60.0060.0339.09
5.2.50.0100.0299.06
5.2.40.0070.0339.04
5.2.30.0090.0359.02
5.2.20.0050.0329.01
5.2.10.0060.0298.91
5.2.00.0090.0368.79
5.1.60.0110.0278.06
5.1.50.0100.0348.07
5.1.40.0170.0398.05
5.1.30.0100.0308.39
5.1.20.0050.0318.42
5.1.10.0050.0308.14
5.1.00.0040.0318.15
5.0.50.0070.0236.62
5.0.40.0060.0206.48
5.0.30.0050.0336.29
5.0.20.0060.0196.26
5.0.10.0030.0286.24
5.0.00.0070.0316.23
4.4.90.0050.0204.78
4.4.80.0030.0174.76
4.4.70.0030.0174.75
4.4.60.0030.0184.75
4.4.50.0070.0294.77
4.4.40.0050.0324.71
4.4.30.0060.0264.75
4.4.20.0070.0234.84
4.4.10.0070.0244.85
4.4.00.0050.0334.76
4.3.110.0060.0194.67
4.3.100.0050.0244.67
4.3.90.0120.0264.63
4.3.80.0060.0464.58
4.3.70.0030.0164.63
4.3.60.0060.0224.63
4.3.50.0100.0254.63
4.3.40.0100.0434.54
4.3.30.0030.0263.29
4.3.20.0070.0223.27
4.3.10.0050.0223.23
4.3.00.0000.01313.47

preferences:
43.53 ms | 401 KiB | 5 Q