3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = [ 1 => [ 1 => [ 'anna', 'alice' ], 2 => [ 'bob', 'bartold' ] ], 2 => [ 1 => [ 'carol' ], 2 => [ 'david' ] ] ]; $result = []; array_walk_recursive($array, function ($value, $key) use (&$result) { if (!is_array($value)) { echo "{$key} <br /> -- {$value} <br />"; } }); var_dump($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)
8.3.60.0000.01616.63
8.3.50.0160.00522.12
8.3.40.0140.00018.70
8.3.30.0140.00019.08
8.3.20.0050.00320.20
8.3.10.0040.00421.94
8.3.00.0070.00020.77
8.2.180.0130.01016.38
8.2.170.0140.00722.96
8.2.160.0070.01022.21
8.2.150.0050.00324.18
8.2.140.0050.00324.66
8.2.130.0080.00026.16
8.2.120.0030.00519.66
8.2.110.0110.01120.34
8.2.100.0080.00318.09
8.2.90.0000.00719.21
8.2.80.0000.00817.97
8.2.70.0080.00017.50
8.2.60.0040.00417.93
8.2.50.0040.00418.07
8.2.40.0040.00419.75
8.2.30.0040.00418.17
8.2.20.0000.00817.65
8.2.10.0000.00818.12
8.2.00.0000.00717.75
8.1.280.0070.00725.92
8.1.270.0050.00520.66
8.1.260.0040.00426.35
8.1.250.0030.00528.09
8.1.240.0060.00323.75
8.1.230.0090.00319.09
8.1.220.0040.00417.79
8.1.210.0000.00818.77
8.1.200.0100.00017.25
8.1.190.0080.00017.35
8.1.180.0040.00418.10
8.1.170.0030.00518.52
8.1.160.0070.00021.92
8.1.150.0020.00518.83
8.1.140.0080.00017.45
8.1.130.0070.00317.84
8.1.120.0000.00717.52
8.1.110.0000.00817.37
8.1.100.0000.00817.40
8.1.90.0030.00617.39
8.1.80.0000.00717.50
8.1.70.0040.00417.39
8.1.60.0030.00617.47
8.1.50.0050.00317.43
8.1.40.0080.00017.51
8.1.30.0000.00817.62
8.1.20.0000.00817.52
8.1.10.0040.00417.50
8.1.00.0080.00017.34
8.0.300.0040.00418.77
8.0.290.0000.00716.75
8.0.280.0000.00718.44
8.0.270.0040.00417.32
8.0.260.0030.00317.29
8.0.250.0030.00316.85
8.0.240.0050.00316.93
8.0.230.0030.00316.94
8.0.220.0050.00316.94
8.0.210.0030.00316.94
8.0.200.0000.00616.81
8.0.190.0030.00416.83
8.0.180.0040.00416.93
8.0.170.0000.00716.85
8.0.160.0000.00716.91
8.0.150.0030.00516.87
8.0.140.0040.00416.87
8.0.130.0000.00813.30
8.0.120.0030.00516.84
8.0.110.0000.00716.79
8.0.100.0030.00316.73
8.0.90.0050.00216.90
8.0.80.0130.00316.84
8.0.70.0040.00416.81
8.0.60.0030.00516.95
8.0.50.0000.00716.77
8.0.30.0110.01017.21
8.0.20.0130.00917.40
8.0.10.0040.00416.89
8.0.00.0080.01016.78
7.4.330.0000.00615.03
7.4.320.0000.00716.64
7.4.300.0000.00616.48
7.4.290.0000.00716.58
7.4.280.0060.00316.42
7.4.270.0030.00316.51
7.4.260.0090.00016.57
7.4.250.0000.00716.55
7.4.240.0060.00116.55
7.4.230.0070.00016.34
7.4.220.0030.01716.36
7.4.210.0120.00316.53
7.4.200.0030.00316.62
7.4.160.0110.00616.65
7.4.150.0280.02017.40
7.4.140.0120.00517.86
7.4.130.0100.01016.59
7.4.120.0170.00116.51
7.4.110.0100.00716.43
7.4.100.0170.00316.57
7.4.90.0110.00716.51
7.4.80.0050.01116.48
7.4.70.0120.00616.28
7.4.60.0070.01116.50
7.4.50.0000.00516.35
7.4.40.0040.01516.61
7.4.30.0140.00716.59
7.4.00.0060.00815.12
7.3.330.0000.00613.30
7.3.320.0060.00613.37
7.3.310.0050.00316.36
7.3.300.0030.00316.38
7.3.290.0030.00316.32
7.3.280.0110.00616.36
7.3.270.0130.01117.40
7.3.260.0060.01216.32
7.3.250.0110.01016.48
7.3.240.0110.00516.49
7.3.230.0110.00816.41
7.3.210.0130.00416.45
7.3.200.0140.00719.39
7.3.190.0090.00616.32
7.3.180.0100.00716.34
7.3.170.0120.00916.29
7.3.160.0030.01516.32
7.2.330.0030.01416.41
7.2.320.0100.00616.68
7.2.310.0000.01816.69
7.2.300.0120.00816.59
7.2.290.0090.01016.42
7.2.00.0090.00019.27
7.1.200.0030.00715.62
7.1.100.0000.01218.12
7.1.70.0070.01017.21
7.1.60.0130.01319.46
7.1.50.0040.01816.91
7.1.00.0030.07722.48
7.0.200.0040.00416.87
7.0.140.0000.07722.08
7.0.60.0130.05719.82
7.0.50.0070.04017.92
7.0.40.0030.06320.27
7.0.30.0170.04320.30
7.0.20.0300.04720.25
7.0.10.0000.04720.13
7.0.00.0030.06320.09
5.6.280.0030.07321.04
5.6.210.0230.03020.61
5.6.200.0100.06718.20
5.6.190.0130.08720.75
5.6.180.0500.06720.39
5.6.170.0270.06320.50
5.6.160.0070.07320.50
5.6.150.0070.08018.29
5.6.140.0100.07718.23
5.6.130.0070.08318.27
5.6.120.0100.05321.15
5.6.110.0130.06320.91
5.6.100.0100.08020.89
5.6.90.0130.04320.94
5.6.80.0170.04020.51
5.5.350.0200.08020.41
5.5.340.0100.08317.98
5.5.330.0030.06020.25
5.5.320.0070.05720.38
5.5.310.0300.07020.27
5.5.300.0100.08018.09
5.5.290.0070.08017.95
5.5.280.0170.04720.77
5.5.270.0100.05020.89
5.5.260.0100.08320.80
5.5.250.0230.07720.59
5.5.240.0100.07720.29
5.4.450.0730.04719.59
5.4.440.1030.05719.47
5.4.430.0170.04719.33
5.4.420.1100.04719.63
5.4.410.0700.05719.35
5.4.400.0770.04719.14
5.4.390.0100.05718.81
5.4.380.0200.05018.79
5.4.370.0200.05718.61
5.4.360.0270.04318.59
5.4.350.0230.05018.78
5.4.340.0230.05718.57
5.4.320.0070.06718.76
5.4.310.0230.04718.70
5.4.300.0170.05018.52
5.4.290.0200.04718.80
5.4.280.0100.05718.59
5.4.270.0230.07318.53
5.4.260.0230.05318.69
5.4.250.0130.06318.78
5.4.240.0030.06718.58
5.4.230.0130.05318.69
5.4.220.0170.05018.73
5.4.210.0200.04318.52
5.4.200.0100.05716.63
5.4.190.0130.05018.73
5.4.180.0170.04718.60
5.4.170.0170.05318.73
5.4.160.0200.05018.54
5.4.150.0230.04718.75
5.4.140.0170.05016.30
5.4.130.0170.04716.26
5.4.120.0130.05316.26
5.4.110.0130.05016.32
5.4.100.0130.05716.25
5.4.90.0130.06016.28
5.4.80.0030.06016.16
5.4.70.0200.04716.41
5.4.60.0170.04716.30
5.4.50.0130.05016.29
5.4.40.0070.06316.17
5.4.30.0100.05316.21
5.4.20.0200.06316.20
5.4.10.0230.04016.18
5.4.00.0100.05315.64
5.3.290.0200.04714.60
5.3.280.0100.05714.66
5.3.270.0200.06714.70
5.3.260.0100.06314.66
5.3.250.0130.05314.57
5.3.240.0200.05014.68
5.3.230.0100.06314.61
5.3.220.0230.04314.56
5.3.210.0130.05714.46
5.3.200.0130.05314.54
5.3.190.0100.06014.60
5.3.180.0130.05314.54
5.3.170.0170.05314.56
5.3.160.0170.05014.53
5.3.150.0170.05014.54
5.3.140.0130.05714.57
5.3.130.0100.06014.64
5.3.120.0200.05014.46
5.3.110.0270.04714.48
5.3.100.0130.05314.14
5.3.90.0300.04014.01
5.3.80.0070.05714.11
5.3.70.0130.05713.98
5.3.60.0100.06013.95
5.3.50.0130.05013.88
5.3.40.0300.06014.02
5.3.30.0170.05013.98
5.3.20.0230.05313.63
5.3.10.0270.03713.60
5.3.00.0200.05013.63
5.2.170.0130.05011.29
5.2.160.0130.04011.18
5.2.150.0100.05011.07
5.2.140.0100.04311.20
5.2.130.0200.03311.07
5.2.120.0170.03311.14
5.2.110.0170.03711.07
5.2.100.0170.03711.25
5.2.90.0130.05311.26
5.2.80.0130.04011.02
5.2.70.0130.04711.05
5.2.60.0200.03711.02
5.2.50.0170.05011.16
5.2.40.0170.04011.13
5.2.30.0200.04710.89
5.2.20.0100.04710.91
5.2.10.0130.04010.85
5.2.00.0030.05010.85
5.1.60.0130.0309.96
5.1.50.0170.02710.09
5.1.40.0070.03710.07
5.1.30.0030.04010.38
5.1.20.0030.05010.50
5.1.10.0070.04310.06
5.1.00.0070.04010.04
5.0.50.0100.0278.57
5.0.40.0070.0278.50
5.0.30.0030.0478.36
5.0.20.0070.0278.19
5.0.10.0100.0238.25
5.0.00.0070.0438.20
4.4.90.0030.0275.89
4.4.80.0070.0205.86
4.4.70.0030.0275.81
4.4.60.0030.0235.85
4.4.50.0070.0205.91
4.4.40.0030.0375.89
4.4.30.0100.0175.91
4.4.20.0030.0275.98
4.4.10.0070.0236.02
4.4.00.0030.0375.90
4.3.110.0130.0235.82
4.3.100.0100.0205.79
4.3.90.0000.0275.82
4.3.80.0030.0335.89
4.3.70.0100.0175.81
4.3.60.0070.0205.79
4.3.50.0030.0235.80
4.3.40.0000.0405.75
4.3.30.0000.0305.14
4.3.20.0100.0175.14
4.3.10.0100.0205.14
4.3.00.0170.01314.62

preferences:
37.38 ms | 401 KiB | 5 Q