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: $emptyit = new EmptyIterator; echo 'count($emptyit): ', count($emptyit), "\n"; // obj w/no properties not empty PHP5+ echo 'empty(null):', empty(null), "\n"; echo 'empty(array():',empty(array()),"\n"; // obj w/no properties not empty PHP5+ echo 'empty($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)
8.3.60.0090.00616.63
8.3.50.0090.01421.88
8.3.40.0090.00618.82
8.3.30.0100.00719.21
8.3.20.0080.00020.16
8.3.10.0060.00323.55
8.3.00.0110.00019.36
8.2.180.0110.00718.36
8.2.170.0110.00722.96
8.2.160.0100.00320.37
8.2.150.0040.00424.18
8.2.140.0050.00324.66
8.2.130.0000.01426.16
8.2.120.0060.00322.23
8.2.110.0000.00822.29
8.2.100.0110.00017.84
8.2.90.0050.00319.17
8.2.80.0000.00817.97
8.2.70.0030.00617.63
8.2.60.0000.00817.93
8.2.50.0030.00618.07
8.2.40.0090.00018.15
8.2.30.0030.00517.90
8.2.20.0070.00017.69
8.2.10.0070.00017.89
8.2.00.0000.01017.56
8.1.280.0110.00425.92
8.1.270.0030.00622.11
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0000.00923.89
8.1.230.0040.00719.07
8.1.220.0080.00017.74
8.1.210.0000.00818.77
8.1.200.0040.00817.13
8.1.190.0000.00717.41
8.1.180.0080.00018.10
8.1.170.0060.00318.46
8.1.160.0000.00721.88
8.1.150.0000.00718.45
8.1.140.0040.00417.34
8.1.130.0000.00717.64
8.1.120.0040.00717.24
8.1.110.0000.00717.35
8.1.100.0000.00717.23
8.1.90.0000.00817.34
8.1.80.0070.00017.34
8.1.70.0040.00417.21
8.1.60.0000.00717.53
8.1.50.0040.00417.50
8.1.40.0030.00617.47
8.1.30.0050.00317.56
8.1.20.0070.00017.60
8.1.10.0000.00817.40
8.1.00.0020.00517.36
8.0.300.0000.00718.77
8.0.290.0050.00217.02
8.0.280.0070.00018.32
8.0.270.0040.00417.17
8.0.260.0060.00017.25
8.0.250.0030.00316.97
8.0.240.0080.00016.96
8.0.230.0000.00816.92
8.0.220.0030.00316.77
8.0.210.0030.00316.88
8.0.200.0040.00416.93
8.0.190.0070.00016.90
8.0.180.0040.00416.88
8.0.170.0040.00416.81
8.0.160.0030.00316.86
8.0.150.0050.00216.86
8.0.140.0040.00416.85
8.0.130.0030.00313.29
8.0.120.0030.00616.84
8.0.110.0000.00816.88
8.0.100.0040.00416.93
8.0.90.0050.00316.78
8.0.80.0120.00316.88
8.0.70.0080.00017.02
8.0.60.0000.00716.89
8.0.50.0040.00416.86
8.0.30.0090.00916.90
8.0.20.0120.00817.40
8.0.10.0070.00016.96
8.0.00.0130.00716.75
7.4.330.0030.00315.15
7.4.320.0080.00016.63
7.4.300.0000.00716.61
7.4.290.0070.00016.49
7.4.280.0070.00016.48
7.4.270.0040.00416.44
7.4.260.0070.00016.45
7.4.250.0040.00416.54
7.4.240.0020.00516.52
7.4.230.0040.00416.39
7.4.220.0100.01016.56
7.4.210.0050.01116.58
7.4.200.0000.00716.44
7.4.190.0030.00416.55
7.4.160.0080.00816.66
7.4.150.0110.00717.40
7.4.140.0140.00417.86
7.4.130.0090.00816.39
7.4.120.0090.00916.50
7.4.110.0150.00916.71
7.4.100.0060.01016.54
7.4.90.0060.01716.65
7.4.80.0100.01319.39
7.4.70.0130.00316.54
7.4.60.0130.00316.58
7.4.50.0000.00916.23
7.4.40.0070.00722.77
7.4.30.0160.00016.59
7.4.00.0100.00715.06
7.3.330.0000.00513.32
7.3.320.0000.00613.09
7.3.310.0040.00416.14
7.3.300.0030.00316.31
7.3.290.0120.00916.27
7.3.280.0110.00716.30
7.3.270.0040.01217.40
7.3.260.0040.01316.33
7.3.250.0120.00916.29
7.3.240.0140.00316.25
7.3.230.0140.00316.39
7.3.210.0130.00316.42
7.3.200.0030.01419.39
7.3.190.0120.00916.59
7.3.180.0090.00616.43
7.3.170.0040.01116.41
7.3.160.0140.01116.38
7.3.120.0030.01314.74
7.3.10.0130.00416.64
7.3.00.0060.01216.54
7.2.330.0170.00016.82
7.2.320.0110.01216.77
7.2.310.0090.00816.68
7.2.300.0100.00716.86
7.2.290.0130.00316.59
7.2.130.0030.01416.92
7.2.120.0070.00716.87
7.2.110.0080.00616.99
7.2.100.0080.00416.88
7.2.90.0070.00716.70
7.2.80.0110.00317.14
7.2.70.0030.01716.91
7.2.60.0040.01016.55
7.2.50.0060.00917.08
7.2.40.0070.00717.01
7.2.30.0040.01116.52
7.2.20.0070.01016.89
7.2.10.0080.00416.82
7.2.00.0020.01418.20
7.1.250.0060.00615.94
7.1.200.0040.01115.82
7.1.100.0030.01018.11
7.1.70.0040.00416.95
7.1.60.0100.01419.33
7.1.50.0120.00916.92
7.1.00.0030.07722.33
7.0.200.0550.00314.89
7.0.140.0070.07022.00
7.0.60.0200.06720.05
7.0.50.0100.04017.88
7.0.40.0070.06320.25
7.0.30.0230.04020.23
7.0.20.0330.07720.08
7.0.10.0070.05320.07
7.0.00.0070.07020.09
5.6.280.0000.07720.79
5.6.210.0130.06020.68
5.6.200.0100.07318.16
5.6.190.0070.04720.45
5.6.180.0330.04320.48
5.6.170.0330.04320.55
5.6.160.0030.08320.56
5.6.150.0070.08718.19
5.6.140.0100.07018.15
5.6.130.0030.04318.20
5.6.120.0100.04021.12
5.6.110.0070.06720.98
5.6.100.0130.07720.98
5.6.90.0270.07021.04
5.6.80.0170.06320.41
5.6.70.4300.04320.28
5.5.350.0030.03720.43
5.5.340.0030.07317.98
5.5.330.0070.06720.29
5.5.320.0330.03720.27
5.5.310.0130.04320.56
5.5.300.0170.06318.07
5.5.290.0030.04018.02
5.5.280.0070.08020.81
5.5.270.0100.05320.80
5.5.260.0070.07720.98
5.5.250.0130.07020.62
5.5.240.0230.07320.38
5.4.450.0130.06019.21
5.4.440.0200.06019.30
5.4.430.0370.05719.70
5.4.420.0200.05019.58
5.4.410.0200.05019.42
5.4.400.0170.06019.15
5.4.390.0270.07319.38
5.4.380.0230.06318.70
5.4.370.0200.06718.80
5.4.360.0230.05718.51
5.4.350.0370.04718.57
5.4.340.0270.06718.77
5.4.320.0100.04012.51
5.4.310.0050.04012.51
5.4.300.0060.04412.51
5.4.290.0110.04412.50
5.4.280.0130.04412.38
5.4.270.0130.04312.38
5.4.260.0110.04912.38
5.4.250.0030.05612.38
5.4.240.0110.05012.38
5.4.230.0130.04912.37
5.4.220.0080.05312.37
5.4.210.0110.04512.37
5.4.200.0090.05212.37
5.4.190.0050.05312.37
5.4.180.0050.05612.37
5.4.170.0100.04912.38
5.4.160.0100.04712.37
5.4.150.0110.04712.36
5.4.140.0140.04812.06
5.4.130.0090.04712.04
5.4.120.0140.04712.00
5.4.110.0140.04612.00
5.4.100.0110.04512.00
5.4.90.0070.05412.00
5.4.80.0120.04612.00
5.4.70.0100.04412.00
5.4.60.0080.04711.99
5.4.50.0120.04512.00
5.4.40.0110.04811.98
5.4.30.0150.04411.98
5.4.20.0140.04511.98
5.4.10.0180.04111.98
5.4.00.0060.05011.47
5.3.290.0060.04112.80
5.3.280.0120.05112.71
5.3.270.0120.05312.72
5.3.260.0150.04912.72
5.3.250.0110.05112.71
5.3.240.0070.05212.72
5.3.230.0100.04912.71
5.3.220.0120.05712.68
5.3.210.0120.03612.68
5.3.200.0050.04112.68
5.3.190.0070.04112.68
5.3.180.0090.04212.67
5.3.170.0070.04212.66
5.3.160.0100.03812.67
5.3.150.0140.03412.67
5.3.140.0120.04412.66
5.3.130.0080.05112.66
5.3.120.0070.04212.66
5.3.110.0080.04512.66
5.3.100.0100.03912.12
5.3.90.0060.04112.08
5.3.80.0090.04612.07
5.3.70.0090.04912.07
5.3.60.0110.04812.06
5.3.50.0120.04912.00
5.3.40.0130.05312.00
5.3.30.0100.05411.96
5.3.20.0120.05411.73
5.3.10.0110.04611.70
5.3.00.0120.04611.69
5.2.170.0130.0379.18
5.2.160.0100.0389.18
5.2.150.0080.0409.18
5.2.140.0060.0409.18
5.2.130.0090.0379.14
5.2.120.0080.0369.14
5.2.110.0080.0369.15
5.2.100.0080.0389.15
5.2.90.0080.0399.14
5.2.80.0080.0429.14
5.2.70.0070.0429.14
5.2.60.0100.0399.09
5.2.50.0080.0409.06
5.2.40.0060.0389.04
5.2.30.0090.0399.02
5.2.20.0070.0359.00
5.2.10.0090.0348.92
5.2.00.0070.0388.79
5.1.60.0040.0348.06
5.1.50.0080.0328.06
5.1.40.0090.0318.05
5.1.30.0070.0368.39
5.1.20.0040.0498.42
5.1.10.0120.0498.15
5.1.00.0090.0338.14
5.0.50.0110.0416.63
5.0.40.0220.0516.49
5.0.30.0020.0356.30
5.0.20.0020.0226.27
5.0.10.0040.0216.25
5.0.00.0020.0336.24
4.4.90.0040.0164.77
4.4.80.0010.0174.75
4.4.70.0010.0184.76
4.4.60.0030.0164.76
4.4.50.0000.0194.77
4.4.40.0030.0254.71
4.4.30.0020.0164.76
4.4.20.0060.0134.84
4.4.10.0040.0154.85
4.4.00.0030.0254.76
4.3.110.0030.0154.67
4.3.100.0030.0154.67
4.3.90.0050.0144.63
4.3.80.0030.0334.58
4.3.70.0030.0144.63
4.3.60.0020.0244.63
4.3.50.0090.0304.63
4.3.40.0010.0284.54
4.3.30.0130.0633.29
4.3.20.0020.0173.27
4.3.10.0020.0173.23
4.3.00.0030.0207.81

preferences:
45.96 ms | 401 KiB | 5 Q