3v4l.org

run code in 300+ PHP versions simultaneously
<?php $count = 0; function p($x, &$count) { $count++; if ($x<= 2) { return 2; } else { return p($x-1)+p($x-2) -1; } } $b = p(5, $count); var_dump(p($b, $count)); echo $count;

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)
8.3.60.0140.00716.63
8.3.50.0160.00321.88
8.3.40.0120.00919.02
8.3.30.0090.00618.82
8.3.20.0040.00420.34
8.3.10.0080.00023.70
8.3.00.0040.00419.51
8.2.180.0070.00716.75
8.2.170.0110.00422.96
8.2.160.0110.00420.35
8.2.150.0040.00424.18
8.2.140.0050.00324.66
8.2.130.0060.00326.16
8.2.120.0050.00320.94
8.2.110.0040.00422.26
8.2.100.0090.00317.63
8.2.90.0030.00519.13
8.2.80.0060.00317.97
8.2.70.0090.00017.63
8.2.60.0040.00717.91
8.2.50.0000.00918.07
8.2.40.0040.00419.46
8.2.30.0000.00720.64
8.2.20.0030.00517.75
8.2.10.0050.00217.94
8.2.00.0050.00318.04
8.1.280.0140.00025.92
8.1.270.0060.00623.96
8.1.260.0000.00726.35
8.1.250.0080.00028.09
8.1.240.0060.00319.32
8.1.230.0090.00317.55
8.1.220.0040.00417.78
8.1.210.0040.00418.77
8.1.200.0110.00017.35
8.1.190.0030.00617.64
8.1.180.0000.00818.10
8.1.170.0050.00318.52
8.1.160.0020.00521.87
8.1.150.0070.00018.75
8.1.140.0000.00819.38
8.1.130.0040.00417.64
8.1.120.0000.00717.29
8.1.110.0000.00717.33
8.1.100.0070.00017.25
8.1.90.0000.00717.30
8.1.80.0050.00217.30
8.1.70.0070.00017.27
8.1.60.0050.00317.51
8.1.50.0040.00417.53
8.1.40.0040.00417.52
8.1.30.0000.00817.72
8.1.20.0060.00317.45
8.1.10.0040.00417.59
8.1.00.0070.00317.52
8.0.300.0040.00418.77
8.0.290.0000.00816.63
8.0.280.0040.00418.40
8.0.270.0000.00717.19
8.0.260.0030.00317.18
8.0.250.0000.00816.83
8.0.240.0050.00216.84
8.0.230.0060.00316.95
8.0.220.0000.00816.88
8.0.210.0040.00316.75
8.0.200.0000.00716.96
8.0.190.0000.00816.93
8.0.180.0040.00416.93
8.0.170.0040.00416.85
8.0.160.0000.00716.90
8.0.150.0000.00716.80
8.0.140.0070.00016.80
8.0.130.0000.00513.31
8.0.120.0030.00516.85
8.0.110.0050.00316.80
8.0.100.0070.00016.90
8.0.90.0030.00316.91
8.0.80.0110.00716.87
8.0.70.0040.00416.95
8.0.60.0030.00516.93
8.0.50.0040.00416.75
8.0.30.0100.01016.89
8.0.20.0100.00817.40
8.0.10.0000.00717.04
8.0.00.0110.00816.81
7.4.330.0000.00516.83
7.4.320.0030.00316.43
7.4.300.0000.00616.64
7.4.290.0030.00516.50
7.4.280.0000.00916.63
7.4.270.0070.00016.56
7.4.260.0000.00716.57
7.4.250.0000.00816.53
7.4.240.0020.00516.49
7.4.230.0000.00716.48
7.4.220.0130.01316.52
7.4.210.0060.00916.52
7.4.200.0040.00416.62
7.4.160.0100.00616.42
7.4.150.0070.01317.40
7.4.140.0070.01017.86
7.4.130.0080.01016.57
7.4.120.0120.00916.70
7.4.110.0070.01016.30
7.4.100.0100.00716.52
7.4.90.0130.00316.42
7.4.80.0070.01419.39
7.4.70.0070.01016.56
7.4.60.0100.01016.48
7.4.50.0100.00616.34
7.4.40.0030.01416.54
7.4.30.0090.00916.81
7.4.00.0070.00715.10
7.3.330.0000.00513.22
7.3.320.0020.00213.23
7.3.310.0000.00716.36
7.3.300.0030.00316.37
7.3.290.0000.00616.22
7.3.280.0050.01016.36
7.3.270.0150.00317.40
7.3.260.0030.01316.45
7.3.250.0120.00616.52
7.3.240.0080.01116.42
7.3.230.0080.01516.58
7.3.210.0130.00316.52
7.3.200.0180.00316.47
7.3.190.0120.00316.38
7.3.180.0090.01016.59
7.3.170.0170.00416.52
7.3.160.0110.00416.46
7.2.330.0110.00716.69
7.2.320.0040.01516.62
7.2.310.0100.01416.44
7.2.300.0090.00816.87
7.2.290.0100.01016.73
7.2.60.0120.00417.03
7.2.50.0090.00616.88
7.1.200.0090.00315.48
7.1.100.0030.00918.01
7.1.70.0100.00316.80
7.1.60.0120.01219.36
7.1.50.0070.01416.90
7.1.00.0030.07322.43
7.0.200.0070.01516.73
7.0.60.0070.04719.82
7.0.50.0030.04717.86
7.0.40.0000.04720.27
7.0.30.0200.04320.23
7.0.20.0330.08320.10
7.0.10.0230.04020.19
7.0.00.0100.05020.23
5.6.280.0070.05720.87
5.6.210.0070.05020.63
5.6.200.0070.08718.16
5.6.190.0170.06720.34
5.6.180.0330.06020.77
5.6.170.0300.07320.54
5.6.160.0070.07720.45
5.6.150.0070.05018.15
5.6.140.0170.06718.21
5.6.130.0100.04718.18
5.6.120.0030.07321.15
5.6.110.0170.07020.98
5.6.100.0070.08720.98
5.6.90.0070.07020.98
5.6.80.0070.08320.53
5.5.350.0230.08720.41
5.5.340.0130.07317.99
5.5.330.0170.07020.29
5.5.320.0070.07720.24
5.5.310.0300.05720.31
5.5.300.0170.07017.94
5.5.290.0130.05018.07
5.5.280.0100.07320.98
5.5.270.0100.04020.84
5.5.260.0070.07320.89
5.5.250.0030.04020.58
5.5.240.4200.03320.07

preferences:
31.04 ms | 401 KiB | 5 Q