3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = [ 1 => [ 1 => [ 'anna', 'alice' ], 2 => [ 'bob', 'bartold' ] ], 2 => [ 1 => [ 'carol' ], 2 => [ 'david' ] ] ]; $result = []; /*$iterator = new \RecursiveIteratorIterator( new \RecursiveArrayIterator($array) ); foreach ($iterator as $result) { var_dump($result); }*/ array_walk_recursive($array, function ($e) use ($result) {$result[] = $e;}); var_dump($result);

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)
8.3.70.0110.00418.68
8.3.60.0100.00716.50
8.3.50.0140.00622.06
8.3.40.0140.00718.61
8.3.30.0130.00619.21
8.3.20.0040.00420.03
8.3.10.0000.00721.96
8.3.00.0000.00720.72
8.2.190.0110.00418.41
8.2.180.0110.00418.04
8.2.170.0040.01422.96
8.2.160.0100.00322.26
8.2.150.0000.00924.18
8.2.140.0080.00024.66
8.2.130.0080.00026.16
8.2.120.0040.00419.66
8.2.110.0000.00820.43
8.2.100.0090.00318.16
8.2.90.0000.00919.20
8.2.80.0030.00517.97
8.2.70.0000.00817.50
8.2.60.0000.00817.93
8.2.50.0040.00418.07
8.2.40.0080.00019.88
8.2.30.0040.00418.18
8.2.20.0070.00017.65
8.2.10.0050.00318.01
8.2.00.0040.00417.66
8.1.280.0130.00625.92
8.1.270.0040.00418.92
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0000.00923.85
8.1.230.0080.00419.15
8.1.220.0040.00417.76
8.1.210.0000.00718.77
8.1.200.0060.00317.35
8.1.190.0040.00417.22
8.1.180.0000.00718.10
8.1.170.0080.00018.59
8.1.160.0040.00421.92
8.1.150.0000.00718.97
8.1.140.0000.00717.36
8.1.130.0000.01017.79
8.1.120.0040.00417.33
8.1.110.0020.00517.50
8.1.100.0050.00317.40
8.1.90.0000.00717.45
8.1.80.0000.00817.46
8.1.70.0040.00417.32
8.1.60.0000.00817.59
8.1.50.0050.00317.53
8.1.40.0080.00017.50
8.1.30.0060.00317.70
8.1.20.0090.00017.51
8.1.10.0040.00417.51
8.1.00.0050.00317.44
8.0.300.0040.00418.77
8.0.290.0000.00816.75
8.0.280.0000.00718.34
8.0.270.0070.00017.25
8.0.260.0000.00617.24
8.0.250.0030.00317.01
8.0.240.0040.00416.98
8.0.230.0000.00616.93
8.0.220.0000.00816.88
8.0.210.0000.00816.92
8.0.200.0050.00216.90
8.0.190.0000.00816.83
8.0.180.0000.00716.81
8.0.170.0030.00516.96
8.0.160.0070.00016.86
8.0.150.0070.00016.77
8.0.140.0080.00016.75
8.0.130.0030.00313.23
8.0.120.0000.00716.75
8.0.110.0040.00416.93
8.0.100.0000.00816.83
8.0.90.0000.00716.76
8.0.80.0100.00616.85
8.0.70.0040.00416.76
8.0.60.0070.00316.83
8.0.50.0000.00716.71
8.0.30.0190.00616.97
8.0.20.0260.02217.40
8.0.10.0030.00517.02
8.0.00.0070.01116.77
7.4.330.0000.00515.06
7.4.320.0030.00316.54
7.4.300.0030.00316.55
7.4.290.0000.00716.52
7.4.280.0040.00716.50
7.4.270.0030.00316.35
7.4.260.0030.00316.55
7.4.250.0080.00016.47
7.4.240.0020.00616.52
7.4.230.0050.00216.62
7.4.220.0160.00316.65
7.4.210.0120.00316.55
7.4.200.0080.00016.42
7.4.160.0000.01516.47
7.4.150.0120.00817.40
7.4.140.0110.01017.86
7.4.130.0050.01616.46
7.4.120.0070.01116.59
7.4.110.0110.00616.52
7.4.100.0120.00916.43
7.4.90.0140.00416.43
7.4.80.0110.00516.66
7.4.70.0150.00616.67
7.4.60.0050.01116.48
7.4.50.0000.00816.41
7.4.40.0130.00316.34
7.4.30.0140.00716.36
7.4.00.0060.00914.84
7.3.330.0020.00313.25
7.3.320.0040.00813.26
7.3.310.0030.00316.32
7.3.300.0060.00016.29
7.3.290.0040.00416.31
7.3.280.0090.01016.27
7.3.270.0000.01617.40
7.3.260.0070.01016.54
7.3.250.0060.01516.55
7.3.240.0060.00916.20
7.3.230.0030.01916.39
7.3.210.0100.00716.57
7.3.200.0100.00719.39
7.3.190.0060.01516.50
7.3.180.0090.00616.24
7.3.170.0130.00316.33
7.3.160.0070.01316.29
7.2.330.0100.00716.57
7.2.320.0070.01016.36
7.2.310.0150.00616.58
7.2.300.0090.00616.61
7.2.290.0100.00616.69
7.2.60.0090.00316.75
7.1.200.0090.00316.01
7.1.100.0060.00918.23
7.1.70.0030.01317.34
7.1.60.0100.01319.46
7.1.50.0090.01216.76
7.1.00.0070.07322.51
7.0.200.0040.00416.74
7.0.140.0030.06022.00
7.0.60.0100.08019.93
7.0.50.0000.06717.97
7.0.40.0130.07020.27
7.0.30.0200.04020.24
7.0.20.0300.07320.19
7.0.10.0170.07720.20
7.0.00.0130.04720.06
5.6.280.0130.06720.89
5.6.210.0070.07020.52
5.6.200.0000.09318.18
5.6.190.0000.04720.55
5.6.180.0300.04320.52
5.6.170.0170.04320.54
5.6.160.0070.06320.42
5.6.150.0030.04718.29
5.6.140.0070.06718.21
5.6.130.0030.07718.20
5.6.120.0100.05021.04
5.6.110.0200.07320.99
5.6.100.0030.06020.99
5.6.90.0030.08721.03
5.6.80.0070.07020.40
5.5.350.0230.07720.50
5.5.340.0100.07317.98
5.5.330.0000.05320.43
5.5.320.0270.05320.25
5.5.310.0330.08720.27
5.5.300.0100.04717.98
5.5.290.0070.08017.98
5.5.280.0130.07720.66
5.5.270.0070.08320.78
5.5.260.0100.08020.93
5.5.250.0000.05020.76
5.5.240.0030.08020.26
5.4.450.0630.06319.59
5.4.440.1000.05319.41
5.4.430.0800.04319.70
5.4.420.0930.04719.60
5.4.410.0830.06019.46
5.4.400.0670.06018.98
5.4.390.0170.05318.63
5.4.380.0270.05018.47
5.4.370.0200.04718.41
5.4.360.0100.05718.79
5.4.350.0130.05718.75
5.4.340.0130.05718.76
5.4.320.0100.06318.62
5.4.310.0170.07718.72
5.4.300.0200.07318.73
5.4.290.0130.08018.75
5.4.280.0200.05318.55
5.4.270.0170.06018.76
5.4.260.0330.05718.43
5.4.250.0200.07318.84
5.4.240.0200.06718.75
5.4.230.0200.05318.77
5.4.220.0230.05318.68
5.4.210.0130.07018.60
5.4.200.0230.05316.80
5.4.190.0200.06718.70
5.4.180.0070.06318.53
5.4.170.0170.05318.64
5.4.160.0230.04718.59
5.4.150.0270.05718.87
5.4.140.0230.06316.32
5.4.130.0130.05016.27
5.4.120.0270.04716.34
5.4.110.0130.05716.32
5.4.100.0200.05316.41
5.4.90.0100.05316.18
5.4.80.0130.05016.18
5.4.70.0070.05716.31
5.4.60.0130.05016.30
5.4.50.0170.04716.14
5.4.40.0200.04716.25
5.4.30.0200.04716.14
5.4.20.0100.05716.29
5.4.10.0230.04716.25
5.4.00.0100.07015.74
5.3.290.0100.06314.74
5.3.280.0200.06314.68
5.3.270.0100.07714.66
5.3.260.0100.06014.54
5.3.250.0200.06714.54
5.3.240.0230.06314.52
5.3.230.0130.06014.51
5.3.220.0130.05314.65
5.3.210.0130.05314.46
5.3.200.0230.04314.66
5.3.190.0300.04714.52
5.3.180.0170.05014.57
5.3.170.0100.05314.68
5.3.160.0030.06314.56
5.3.150.0170.05014.55
5.3.140.0100.05714.52
5.3.130.0130.06314.46
5.3.120.0200.05714.53
5.3.110.0270.06314.58
5.3.100.0330.05014.13
5.3.90.0130.06013.97
5.3.80.0070.06713.99
5.3.70.0200.04713.96
5.3.60.0130.05313.99
5.3.50.0230.04314.02
5.3.40.0200.06014.04
5.3.30.0200.04314.00
5.3.20.0170.04713.62
5.3.10.0070.05713.73
5.3.00.0170.05313.62
5.2.170.0130.04011.09
5.2.160.0030.05011.18
5.2.150.0170.05011.12
5.2.140.0030.05311.08
5.2.130.0100.04311.08
5.2.120.0100.04311.25
5.2.110.0230.03011.09
5.2.100.0200.03311.05
5.2.90.0130.04011.07
5.2.80.0200.03711.02
5.2.70.0230.04711.13
5.2.60.0170.03710.99
5.2.50.0030.04711.05
5.2.40.0130.04011.13
5.2.30.0030.05010.94
5.2.20.0070.04311.07
5.2.10.0200.04310.82
5.2.00.0170.03710.73
5.1.60.0170.0279.97
5.1.50.0030.04010.05
5.1.40.0070.0379.97
5.1.30.0030.04310.34
5.1.20.0100.03710.41
5.1.10.0100.03710.13
5.1.00.0130.03710.19
5.0.50.0100.0278.61
5.0.40.0170.0178.47
5.0.30.0100.0438.25
5.0.20.0000.0338.23
5.0.10.0030.0308.20
5.0.00.0000.0478.36
4.4.90.0070.0205.90
4.4.80.0000.0275.82
4.4.70.0100.0175.85
4.4.60.0030.0275.86
4.4.50.0070.0205.90
4.4.40.0030.0375.93
4.4.30.0000.0275.92
4.4.20.0030.0235.98
4.4.10.0000.0276.02
4.4.00.0070.0335.95
4.3.110.0070.0235.86
4.3.100.0070.0275.82
4.3.90.0100.0275.78
4.3.80.0030.0375.80
4.3.70.0030.0305.89
4.3.60.0100.0235.76
4.3.50.0030.0305.80
4.3.40.0070.0375.73
4.3.30.0100.0234.87
4.3.20.0070.0204.87
4.3.10.0030.0234.87
4.3.00.0130.0207.09

preferences:
39.41 ms | 401 KiB | 5 Q