3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = [ 1 => [ 1 => [ 'anna', 'alice' ], 2 => [ 'bob', 'bartold' ] ], 2 => [ 1 => [ 'carol' ], 2 => [ 'david' ] ] ]; $result = []; $currentIndex = 1; array_walk_recursive($result, function($value, $key) use (&$result, &$currentIndex) { if (!is_array($value)) { $result[$currentIndex] = $value; $currentIndex++; } }); var_dump($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)
8.3.60.0070.00716.36
8.3.50.0140.00821.93
8.3.40.0040.01118.61
8.3.30.0080.00618.62
8.3.20.0080.00020.39
8.3.10.0080.00021.77
8.3.00.0040.00420.94
8.2.180.0110.00716.32
8.2.170.0110.00422.96
8.2.160.0070.00722.20
8.2.150.0050.00324.18
8.2.140.0050.00324.66
8.2.130.0050.00326.16
8.2.120.0040.00419.66
8.2.110.0060.00320.55
8.2.100.0070.00418.09
8.2.90.0040.00419.17
8.2.80.0050.00317.97
8.2.70.0000.01017.50
8.2.60.0030.00517.80
8.2.50.0050.00318.07
8.2.40.0030.00519.93
8.2.30.0040.00418.04
8.2.20.0030.00517.68
8.2.10.0040.00417.93
8.2.00.0040.00417.68
8.1.280.0130.00725.92
8.1.270.0080.00020.79
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0040.00723.76
8.1.230.0110.00019.08
8.1.220.0050.00317.74
8.1.210.0040.00418.77
8.1.200.0030.00617.23
8.1.190.0040.00417.22
8.1.180.0040.00418.10
8.1.170.0080.00018.49
8.1.160.0000.00722.08
8.1.150.0030.00618.80
8.1.140.0040.00417.45
8.1.130.0060.00317.83
8.1.120.0000.00717.34
8.1.110.0000.00717.43
8.1.100.0060.00317.47
8.1.90.0070.00317.46
8.1.80.0000.00717.36
8.1.70.0000.00717.33
8.1.60.0050.00517.51
8.1.50.0000.00817.58
8.1.40.0020.00517.54
8.1.30.0050.00317.72
8.1.20.0000.00817.49
8.1.10.0050.00317.35
8.1.00.0000.00717.51
8.0.300.0040.00418.77
8.0.290.0070.00016.63
8.0.280.0030.00318.43
8.0.270.0030.00317.20
8.0.260.0000.00817.18
8.0.250.0030.00316.90
8.0.240.0070.00016.91
8.0.230.0030.00416.72
8.0.220.0000.00716.82
8.0.210.0030.00616.71
8.0.200.0030.00316.97
8.0.190.0040.00416.96
8.0.180.0040.00416.81
8.0.170.0040.00416.86
8.0.160.0030.00416.97
8.0.150.0000.00716.75
8.0.140.0030.00316.81
8.0.130.0000.00513.36
8.0.120.0000.00816.88
8.0.110.0040.00416.84
8.0.100.0040.00416.91
8.0.90.0080.00016.96
8.0.80.0040.01116.86
8.0.70.0000.00716.84
8.0.60.0000.00816.96
8.0.50.0040.00416.69
8.0.30.0060.01217.15
8.0.20.0170.00717.40
8.0.10.0030.00516.88
8.0.00.0090.00816.65
7.4.330.0020.00215.15
7.4.320.0040.00416.51
7.4.300.0060.00016.51
7.4.290.0030.00316.51
7.4.280.0100.00016.40
7.4.270.0030.00316.40
7.4.260.0030.00716.49
7.4.250.0030.00316.55
7.4.240.0040.00316.55
7.4.230.0030.00316.62
7.4.220.0200.00016.61
7.4.210.0090.00716.54
7.4.200.0080.00016.49
7.4.160.0130.00316.36
7.4.150.0110.01117.40
7.4.140.0130.00517.86
7.4.130.0150.00316.57
7.4.120.0060.01116.51
7.4.110.0150.00416.57
7.4.100.0170.01116.57
7.4.90.0130.00316.38
7.4.80.0060.00916.38
7.4.70.0130.00316.38
7.4.60.0090.00616.48
7.4.50.0050.00016.46
7.4.40.0030.01316.46
7.4.30.0130.00916.47
7.4.00.0140.00314.72
7.3.330.0000.00613.26
7.3.320.0130.00013.28
7.3.310.0000.00716.34
7.3.300.0040.00416.17
7.3.290.0000.00716.16
7.3.280.0090.00816.29
7.3.270.0160.00317.40
7.3.260.0060.01216.35
7.3.250.0080.01116.48
7.3.240.0100.00716.24
7.3.230.0080.01116.39
7.3.210.0100.01016.39
7.3.200.0130.00619.39
7.3.190.0090.00616.21
7.3.180.0140.00316.34
7.3.170.0070.01016.39
7.3.160.0090.01216.44
7.3.10.0060.00616.67
7.3.00.0110.00016.78
7.2.330.0100.00716.41
7.2.320.0080.00816.50
7.2.310.0060.01216.63
7.2.300.0080.01116.61
7.2.290.0070.01016.68
7.2.130.0040.00816.83
7.2.120.0100.00616.71
7.2.110.0000.01216.82
7.2.100.0000.01016.61
7.2.90.0070.00716.87
7.2.80.0030.00916.70
7.2.70.0000.01216.66
7.2.60.0090.01016.49
7.2.50.0060.00616.80
7.2.40.0000.01116.61
7.2.30.0120.00316.81
7.2.20.0000.01216.94
7.2.10.0030.00716.64
7.2.00.0090.00218.07
7.1.250.0030.00515.80
7.1.200.0160.00015.77
7.1.100.0070.00718.37
7.1.70.0000.00717.19
7.1.60.0060.00617.17
7.1.50.0090.01316.82
7.1.00.0030.07722.57
7.0.200.0030.01216.56
7.0.140.0000.06322.22
7.0.60.0130.07719.84
7.0.50.0100.08317.87
7.0.40.0130.06720.14
7.0.30.0230.03720.06
7.0.20.0370.07720.02
7.0.10.0100.04020.24
7.0.00.0070.05020.23
5.6.280.0070.07021.04
5.6.210.0030.06320.78
5.6.200.0030.08318.16
5.6.190.0070.06020.41
5.6.180.0400.04720.69
5.6.170.0200.04320.50
5.6.160.0100.07720.43
5.6.150.0000.09018.18
5.6.140.0030.08318.18
5.6.130.0070.07018.23
5.6.120.0070.04020.95
5.6.110.0070.08721.14
5.6.100.0170.06020.93
5.6.90.0170.07721.12
5.6.80.0130.07720.53
5.5.350.0370.07020.41
5.5.340.0170.07318.09
5.5.330.0070.07020.27
5.5.320.0070.05020.30
5.5.310.0300.04720.30
5.5.300.0070.04018.03
5.5.290.0130.03717.99
5.5.280.0130.07020.65
5.5.270.0130.07320.85
5.5.260.0170.07320.88
5.5.250.0100.08020.71
5.5.240.0130.07020.16
5.4.450.0070.06019.60
5.4.440.0100.05319.46
5.4.430.0500.06319.60
5.4.420.1000.05319.47
5.4.410.0970.04719.32
5.4.400.0870.06019.15
5.4.390.0130.05318.81
5.4.380.0230.05018.47
5.4.370.0130.06018.45
5.4.360.0230.04718.79
5.4.350.0170.05318.79
5.4.340.0230.04318.80
5.4.320.0270.05018.74
5.4.310.0130.05718.47
5.4.300.0170.05318.53
5.4.290.0200.04718.72
5.4.280.0170.05018.83
5.4.270.0230.04318.44
5.4.260.0170.04718.73
5.4.250.0100.07718.80
5.4.240.0130.05718.61
5.4.230.0030.06318.60
5.4.220.0170.05018.77
5.4.210.0030.06318.69
5.4.200.0170.04716.63
5.4.190.0230.04018.71
5.4.180.0170.05018.75
5.4.170.0100.06018.59
5.4.160.0170.05018.61
5.4.150.0130.05318.78
5.4.140.0070.05716.18
5.4.130.0230.04016.29
5.4.120.0200.04316.29
5.4.110.0200.04316.29
5.4.100.0200.04716.32
5.4.90.0230.06016.33
5.4.80.0130.05716.25
5.4.70.0130.07016.25
5.4.60.0100.05016.17
5.4.50.0100.05016.13
5.4.40.0200.04716.22
5.4.30.0130.05016.20
5.4.20.0200.04716.26
5.4.10.0170.04716.18
5.4.00.0000.06015.75
5.3.290.0100.05714.58
5.3.280.0230.04314.67
5.3.270.0270.06714.60
5.3.260.0130.05714.70
5.3.250.0100.05714.61
5.3.240.0130.05714.58
5.3.230.0230.04714.60
5.3.220.0230.04314.52
5.3.210.0100.06014.62
5.3.200.0170.04714.46
5.3.190.0100.05714.48
5.3.180.0200.04714.66
5.3.170.0130.05014.55
5.3.160.0230.03714.51
5.3.150.0070.05714.46
5.3.140.0170.05014.56
5.3.130.0130.05314.59
5.3.120.0130.06314.46
5.3.110.0230.05014.64
5.3.100.0170.05013.95
5.3.90.0200.04714.00
5.3.80.0070.05713.96
5.3.70.0070.06013.91
5.3.60.0100.05314.00
5.3.50.0230.04313.94
5.3.40.0130.05014.02
5.3.30.0170.05013.82
5.3.20.0170.04313.68
5.3.10.0100.05313.73
5.3.00.0200.04713.53
5.2.170.0130.04311.18
5.2.160.0200.03711.13
5.2.150.0070.04711.12
5.2.140.0100.04311.11
5.2.130.0000.05011.15
5.2.120.0130.03711.13
5.2.110.0070.04311.05
5.2.100.0030.04311.14
5.2.90.0070.04311.03
5.2.80.0100.04011.07
5.2.70.0170.03711.14
5.2.60.0070.04311.01
5.2.50.0100.04011.00
5.2.40.0100.04010.94
5.2.30.0270.02310.91
5.2.20.0070.04311.11
5.2.10.0070.04310.87
5.2.00.0070.04710.76
5.1.60.0100.0339.97
5.1.50.0100.0379.96
5.1.40.0070.0409.98
5.1.30.0130.03710.40
5.1.20.0000.04710.40
5.1.10.0130.03310.12
5.1.00.0070.04010.10
5.0.50.0030.0408.64
5.0.40.0070.0378.47
5.0.30.0070.0438.25
5.0.20.0000.0338.23
5.0.10.0070.0278.23
5.0.00.0070.0408.25
4.4.90.0070.0205.92
4.4.80.0000.0235.89
4.4.70.0030.0235.93
4.4.60.0100.0175.81
4.4.50.0070.0205.92
4.4.40.0000.0405.82
4.4.30.0030.0235.95
4.4.20.0000.0275.96
4.4.10.0030.0235.97
4.4.00.0030.0335.91
4.3.110.0070.0205.84
4.3.100.0030.0235.85
4.3.90.0000.0235.84
4.3.80.0070.0305.78
4.3.70.0000.0275.76
4.3.60.0070.0175.81
4.3.50.0130.0135.89
4.3.40.0100.0275.75
4.3.30.0030.0234.97
4.3.20.0030.0204.97
4.3.10.0000.0274.97
4.3.00.0230.03314.62

preferences:
40.83 ms | 401 KiB | 5 Q