3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = [ "one" => "one", "two" => "two", "group1" => [ "three" => "three", "four" => "four", "group2" => [ "five" => "five", ], ], "group3" => [ "six" => "six", ] ]; function mergeRecursive(array $array, $result = []) { foreach($array as $k => $v) { if(!is_array($v)) yield $v; else yield "$k," . mergeRecursive($v, $result); } } foreach(mergeRecursive($arr) as $v) echo $v . "\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)
8.3.70.0120.00916.50
8.3.60.0040.01416.88
8.3.50.0270.01022.04
8.3.40.0090.00618.76
8.3.30.0090.00618.72
8.3.20.0070.00020.16
8.3.10.0040.00423.36
8.3.00.0060.00317.78
8.2.180.0060.00916.75
8.2.170.0090.00622.96
8.2.160.0100.01020.38
8.2.150.0000.00824.18
8.2.140.0070.00024.66
8.2.130.0000.00826.16
8.2.120.0050.00317.63
8.2.110.0030.00720.93
8.2.100.0120.00018.22
8.2.90.0000.00819.17
8.2.80.0000.00717.97
8.2.70.0060.00317.63
8.2.60.0050.00317.78
8.2.50.0000.00818.10
8.2.40.0050.00220.48
8.2.30.0000.00720.54
8.2.20.0000.00717.67
8.2.10.0000.00718.11
8.2.00.0050.00318.00
8.1.280.0090.00625.92
8.1.270.0110.00723.91
8.1.260.0000.00726.35
8.1.250.0050.00328.09
8.1.240.0000.00923.82
8.1.230.0040.00719.16
8.1.220.0080.00017.77
8.1.210.0000.00818.77
8.1.200.0040.00417.48
8.1.190.0000.00817.38
8.1.180.0000.00918.10
8.1.170.0040.00418.87
8.1.160.0000.00722.03
8.1.150.0000.00818.89
8.1.140.0030.00519.51
8.1.130.0000.00717.63
8.1.120.0040.00417.37
8.1.110.0000.00717.52
8.1.100.0000.00717.38
8.1.90.0040.00417.45
8.1.80.0030.00517.34
8.1.70.0050.00217.47
8.1.60.0050.00317.49
8.1.50.0040.00417.48
8.1.40.0060.00317.58
8.1.30.0080.00017.54
8.1.20.0030.00517.64
8.1.10.0000.00817.61
8.1.00.0030.00517.53
8.0.300.0040.00418.77
8.0.290.0000.00916.75
8.0.280.0040.00418.33
8.0.270.0030.00317.19
8.0.260.0070.00017.27
8.0.250.0040.00416.95
8.0.240.0030.00517.07
8.0.230.0000.00817.04
8.0.220.0040.00417.01
8.0.210.0000.00717.00
8.0.200.0000.00616.95
8.0.190.0080.00016.91
8.0.180.0000.00817.07
8.0.170.0040.00416.98
8.0.160.0000.00716.93
8.0.150.0040.00416.98
8.0.140.0070.00016.78
8.0.130.0040.00413.38
8.0.120.0080.00016.96
8.0.110.0050.00217.02
8.0.100.0040.00416.81
8.0.90.0040.00216.96
8.0.80.0120.00316.85
8.0.70.0000.00716.95
8.0.60.0030.00316.96
8.0.50.0070.00016.80
8.0.30.0100.00817.11
8.0.20.0130.00417.40
8.0.10.0050.00217.18
8.0.00.0120.00716.75
7.4.330.0050.00015.20
7.4.320.0030.00316.63
7.4.300.0040.00416.58
7.4.290.0060.00016.52
7.4.280.0040.00416.48
7.4.270.0030.00316.54
7.4.260.0040.00416.39
7.4.250.0000.00716.43
7.4.240.0050.00216.53
7.4.230.0000.00716.69
7.4.220.0090.00916.62
7.4.210.0110.00316.50
7.4.200.0030.00316.45
7.4.160.0060.00916.71
7.4.150.0120.00617.40
7.4.140.0120.00817.86
7.4.130.0060.01316.62
7.4.120.0100.00716.57
7.4.110.0060.01216.69
7.4.100.0030.01916.45
7.4.90.0070.01016.54
7.4.80.0160.00019.39
7.4.70.0060.01316.80
7.4.60.0100.01016.69
7.4.50.0040.00416.57
7.4.40.0090.00616.58
7.4.30.0060.01316.57
7.4.00.0110.00614.97
7.3.330.0030.00313.38
7.3.320.0060.00013.26
7.3.310.0000.00816.45
7.3.300.0000.00716.30
7.3.290.0060.01016.43
7.3.280.0070.01316.44
7.3.270.0110.00617.40
7.3.260.0100.00716.44
7.3.250.0090.00816.50
7.3.240.0120.00516.52
7.3.230.0110.00716.39
7.3.210.0130.00316.46
7.3.200.0130.00316.48
7.3.190.0030.01316.56
7.3.180.0110.00716.56
7.3.170.0060.01616.65
7.3.160.0100.00716.54
7.3.120.0110.00714.72
7.3.110.0110.00714.77
7.3.100.0040.00714.86
7.3.90.0030.01414.64
7.3.80.0070.01014.76
7.3.70.0070.01014.63
7.3.60.0070.00714.67
7.3.50.0070.00715.00
7.3.40.0070.00714.95
7.3.30.0030.01315.01
7.3.20.0030.01016.84
7.3.10.0070.00716.65
7.3.00.0080.00416.90
7.2.330.0060.01216.57
7.2.320.0120.00616.44
7.2.310.0040.02016.48
7.2.300.0130.00916.48
7.2.290.0120.00616.68
7.2.250.0090.00614.80
7.2.240.0120.00415.22
7.2.230.0000.01114.91
7.2.220.0060.01214.97
7.2.210.0070.01015.21
7.2.200.0070.01015.01
7.2.190.0070.00714.80
7.2.180.0040.01115.09
7.2.170.0000.01414.84
7.2.60.0110.00316.38
7.2.00.0060.00619.23
7.1.330.0030.01015.92
7.1.320.0070.00715.71
7.1.310.0060.00615.89
7.1.300.0030.01015.84
7.1.290.0030.00715.70
7.1.280.0040.00716.02
7.1.270.0060.00615.86
7.1.260.0100.00315.71
7.1.200.0040.00715.73
7.1.100.0030.01018.00
7.1.70.0060.00917.30
7.1.60.0090.01519.11
7.1.50.0260.01034.93
7.1.00.0070.07322.40
7.0.200.0260.00414.45
7.0.60.0070.04319.97
7.0.50.0000.04317.96
7.0.40.0070.05320.09
7.0.30.0170.04320.22
7.0.20.0200.08020.22
7.0.10.0330.07720.23
7.0.00.0100.08720.25
5.6.280.0030.03021.03
5.6.210.0100.09320.69
5.6.200.0100.08318.16
5.6.190.0070.04320.41
5.6.180.4030.04720.38
5.6.170.0200.08020.40
5.6.160.0130.04320.54
5.6.150.0100.07018.27
5.6.140.0070.06318.21
5.6.130.0100.08318.16
5.6.120.0030.04021.00
5.6.110.0130.07720.98
5.6.100.0070.09020.98
5.6.90.0070.03721.10
5.6.80.0100.08720.38
5.6.70.0000.08020.35
5.5.350.0170.08320.44
5.5.340.0100.07718.09
5.5.330.0030.08720.43
5.5.320.0430.07320.13
5.5.310.0200.08320.34
5.5.300.0030.05017.97
5.5.290.0170.05718.08
5.5.280.0030.08720.88
5.5.270.0070.05320.90
5.5.260.0130.03720.85
5.5.250.0070.04020.69
5.5.240.0070.04720.13
5.4.450.0230.07019.32
5.4.440.0130.08719.32
5.4.430.0330.07019.41
5.4.420.0330.06719.27
5.4.410.0230.07319.37
5.4.400.0170.05319.23
5.4.390.0300.05318.98
5.4.380.0200.07319.08
5.4.370.0270.05319.00
5.4.360.0300.06319.22
5.4.350.0230.03719.32
5.4.340.0270.03319.08
5.4.320.0230.07319.23
5.4.310.0270.06019.22
5.4.300.0270.04319.31
5.4.290.0170.05318.98
5.4.280.0200.06719.09
5.4.270.0300.06719.21
5.4.260.0230.04319.06
5.4.250.0230.06719.21
5.4.240.0270.05318.87
5.4.230.0200.07319.16
5.4.220.0370.06018.86
5.4.210.0270.03719.21
5.4.200.0270.06019.19
5.4.190.0330.06719.08
5.4.180.0300.07019.05
5.4.170.0230.07318.98
5.4.160.0200.06019.11
5.4.150.0230.06719.14
5.4.140.0270.04716.46
5.4.130.0200.04316.35
5.4.120.0230.05016.50
5.4.110.0300.04316.55
5.4.100.0270.05016.55
5.4.90.0330.03316.55

preferences:
57.08 ms | 401 KiB | 5 Q