3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { public function flatten() { $data = func_get_args(); return array_reduce($data, function($c, $a){ return array_merge($c, is_array($a) ?$this->flatten(...$a) : [$a]); }, []) ; } } var_dump((new Foo())->flatten(1)); var_dump((new Foo())->flatten()); var_dump((new Foo())->flatten(1, [2], [3, [4,5]]));

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)
8.3.70.0040.01116.58
8.3.60.0070.01416.38
8.3.50.0100.00717.21
8.3.40.0070.00718.58
8.3.30.0090.00618.38
8.3.20.0090.00021.85
8.3.10.0000.00821.89
8.3.00.0000.00819.56
8.2.190.0120.00616.58
8.2.180.0090.00925.92
8.2.170.0120.00319.09
8.2.160.0090.00622.96
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0000.00820.33
8.2.120.0000.00926.35
8.2.110.0030.00722.25
8.2.100.0100.00317.84
8.2.90.0040.00419.21
8.2.80.0000.00817.97
8.2.70.0000.00817.50
8.2.60.0000.00817.78
8.2.50.0040.00418.07
8.2.40.0030.00618.22
8.2.30.0050.00217.98
8.2.20.0050.00217.98
8.2.10.0070.00018.02
8.2.00.0050.00218.18
8.1.280.0100.01025.92
8.1.270.0090.00024.66
8.1.260.0050.00326.35
8.1.250.0050.00328.09
8.1.240.0000.01020.73
8.1.230.0090.00317.70
8.1.220.0030.00617.76
8.1.210.0080.00018.77
8.1.200.0060.00317.35
8.1.190.0040.00417.36
8.1.180.0060.00318.10
8.1.170.0030.00518.66
8.1.160.0040.00418.77
8.1.150.0060.00318.87
8.1.140.0040.00419.57
8.1.130.0040.00417.43
8.1.120.0040.00417.38
8.1.110.0000.00917.34
8.1.100.0040.00417.46
8.1.90.0000.00717.45
8.1.80.0040.00417.34
8.1.70.0000.00717.50
8.1.60.0000.00817.57
8.1.50.0040.00417.49
8.1.40.0030.00617.41
8.1.30.0070.00017.63
8.1.20.0040.00417.63
8.1.10.0000.00817.55
8.1.00.0000.00717.35
8.0.300.0030.00618.77
8.0.290.0040.00816.63
8.0.280.0000.00718.52
8.0.270.0000.00716.74
8.0.260.0070.00016.75
8.0.250.0080.00017.02
8.0.240.0050.00316.94
8.0.230.0030.00317.02
8.0.220.0040.00416.95
8.0.210.0030.00316.88
8.0.200.0000.00617.01
8.0.190.0000.00816.96
8.0.180.0070.00016.93
8.0.170.0000.00716.95
8.0.160.0040.00416.95
8.0.150.0030.00516.84
8.0.140.0000.00716.82
8.0.130.0030.00613.30
8.0.120.0040.00416.92
8.0.110.0000.00716.93
8.0.100.0000.00816.91
8.0.90.0080.00016.79
8.0.80.0040.01116.83
8.0.70.0070.00016.93
8.0.60.0050.00316.93
8.0.50.0020.00516.94
8.0.30.0090.00716.97
8.0.20.0120.00817.40
8.0.10.0030.00517.09
8.0.00.0120.00616.75
7.4.330.0060.00015.55
7.4.320.0000.00616.65
7.4.300.0030.00316.48
7.4.290.0030.00316.51
7.4.280.0040.00416.59
7.4.270.0070.00016.59
7.4.260.0100.00016.59
7.4.250.0060.00316.45
7.4.240.0040.00416.45
7.4.230.0040.00416.36
7.4.220.0170.01016.45
7.4.210.0080.00616.47
7.4.200.0030.00316.54
7.4.160.0110.00816.46
7.4.150.0090.00917.40
7.4.140.0100.00817.86
7.4.130.0130.01216.43
7.4.120.0110.00916.48
7.4.110.0130.00716.55
7.4.100.0090.00916.57
7.4.90.0070.01116.32
7.4.80.0070.01419.39
7.4.70.0100.00716.46
7.4.60.0060.00916.34
7.4.50.0040.01116.42
7.4.40.0100.01316.58
7.4.30.0100.00716.50
7.4.00.0110.00514.79
7.3.330.0000.00613.27
7.3.320.0000.00613.35
7.3.310.0070.00016.34
7.3.300.0040.00416.19
7.3.290.0080.01316.26
7.3.280.0050.01216.26
7.3.270.0150.00617.40
7.3.260.0090.00916.47
7.3.250.0110.00716.39
7.3.240.0070.01016.45
7.3.230.0110.00816.28
7.3.210.0110.00616.17
7.3.200.0090.00616.47
7.3.190.0060.01116.30
7.3.180.0090.00816.53
7.3.170.0110.00616.48
7.3.160.0150.00616.38
7.3.120.0100.01014.65
7.3.110.0070.00715.04
7.3.100.0070.00715.09
7.3.90.0040.00714.77
7.3.80.0090.00614.58
7.3.70.0110.00414.65
7.3.60.0100.00614.81
7.3.50.0060.00914.89
7.3.40.0040.01114.82
7.3.30.0080.00314.74
7.3.20.0100.00716.68
7.3.10.0200.00716.47
7.3.00.0070.00716.54
7.2.330.0100.00716.73
7.2.320.0120.00616.80
7.2.310.0090.01216.63
7.2.300.0060.01616.59
7.2.290.0090.01216.59
7.2.250.0080.01115.23
7.2.240.0000.02015.20
7.2.230.0120.00614.80
7.2.220.0080.00414.88
7.2.210.0030.01415.04
7.2.200.0150.00014.98
7.2.190.0120.00615.13
7.2.180.0070.01115.14
7.2.170.0070.00714.71
7.2.60.0000.01216.74
7.1.330.0070.00715.86
7.1.320.0100.00316.03
7.1.310.0050.00515.85
7.1.300.0130.00315.54
7.1.290.0080.01115.84
7.1.280.0070.00715.78
7.1.270.0090.00615.82
7.1.260.0070.00715.76
7.1.200.0000.01415.63
7.1.70.0040.00717.16
7.1.60.0110.01115.05
7.1.50.0400.01332.76
7.1.40.0500.01032.57
7.1.30.0500.00732.68
7.1.20.0370.02032.69
7.1.10.0530.00314.63
7.1.00.0330.01314.80
7.0.200.0180.00316.47
7.0.190.0330.01014.46
7.0.180.0300.01314.42
7.0.170.0230.01714.41
7.0.160.0330.00714.44
7.0.150.0400.00714.42
7.0.140.0370.00714.40
7.0.130.0400.00714.66
7.0.120.0500.00714.67
7.0.110.0370.00714.53
7.0.100.0330.01014.43
7.0.90.0330.01314.66
7.0.80.0330.01014.58
7.0.70.0370.01714.49
7.0.60.0430.00314.39
7.0.50.0400.01014.53
7.0.40.0900.01014.63
7.0.30.0370.01314.67
7.0.20.0370.01314.70
7.0.10.0370.01014.72
7.0.00.0370.01014.70

preferences:
52.11 ms | 401 KiB | 5 Q