3v4l.org

run code in 300+ PHP versions simultaneously
<?php function flatten(array $array) { $return = array(); array_walk_recursive($array, function($a, $b) use (&$return) { $return[$b] = $a; }); return $return; } $a = array(1,2,array(3,4, array(5,6,7), 8), 9); $array = array( 1 => array( 5 => array( 3 => 'testvalue1' ) ), 2 => array( 6 => 'testvalue2' ), 3 => 'testvalue3', 4 => 'testvalue4', ); var_dump(flatten($a));

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)
8.3.60.0150.00318.39
8.3.50.0120.00622.93
8.3.40.0210.00018.68
8.3.30.0000.01419.17
8.3.20.0050.00320.31
8.3.10.0040.00423.48
8.3.00.0090.00017.50
8.2.180.0110.01116.50
8.2.170.0100.00622.96
8.2.160.0100.00320.34
8.2.150.0080.00024.18
8.2.140.0090.00024.66
8.2.130.0040.00426.16
8.2.120.0040.00421.05
8.2.110.0000.00921.00
8.2.100.0040.00817.91
8.2.90.0060.00317.91
8.2.80.0000.00817.97
8.2.70.0000.00817.63
8.2.60.0040.00418.05
8.2.50.0040.00418.07
8.2.40.0000.00818.16
8.2.30.0040.00418.19
8.2.20.0030.00517.64
8.2.10.0050.00318.19
8.2.00.0000.00717.65
8.1.280.0070.00725.92
8.1.270.0080.00023.87
8.1.260.0030.00526.35
8.1.250.0040.00428.09
8.1.240.0070.00322.61
8.1.230.0080.00321.03
8.1.220.0000.00817.79
8.1.210.0000.00918.85
8.1.200.0030.00617.35
8.1.190.0050.00317.10
8.1.180.0000.00818.10
8.1.170.0040.00418.26
8.1.160.0000.00721.89
8.1.150.0040.00419.00
8.1.140.0000.00717.42
8.1.130.0030.00317.84
8.1.120.0070.00017.36
8.1.110.0040.00417.38
8.1.100.0050.00217.48
8.1.90.0060.00317.36
8.1.80.0000.00717.49
8.1.70.0000.00717.34
8.1.60.0040.00417.59
8.1.50.0050.00317.43
8.1.40.0070.00417.47
8.1.30.0000.00817.61
8.1.20.0000.00817.67
8.1.10.0040.00417.59
8.1.00.0000.00717.50
8.0.300.0060.00320.04
8.0.290.0000.00716.63
8.0.280.0070.00018.44
8.0.270.0000.00817.27
8.0.260.0060.00017.21
8.0.250.0030.00316.86
8.0.240.0040.00416.84
8.0.230.0030.00316.89
8.0.220.0070.00016.90
8.0.210.0030.00616.77
8.0.200.0020.00516.91
8.0.190.0000.00717.00
8.0.180.0070.00016.89
8.0.170.0000.00816.75
8.0.160.0000.00816.95
8.0.150.0000.00716.94
8.0.140.0070.00016.89
8.0.130.0030.00313.28
8.0.120.0000.00816.76
8.0.110.0040.00416.94
8.0.100.0040.00416.88
8.0.90.0040.00416.68
8.0.80.0060.00916.81
8.0.70.0030.00516.70
8.0.60.0050.00216.91
8.0.50.0080.00016.75
8.0.30.0070.01317.22
8.0.20.0090.00917.40
8.0.10.0050.00316.89
8.0.00.0090.00916.64
7.4.330.0060.00015.15
7.4.320.0000.00616.41
7.4.300.0040.00416.52
7.4.290.0000.00716.64
7.4.280.0000.00716.45
7.4.270.0000.00716.58
7.4.260.0000.00716.59
7.4.250.0000.00716.55
7.4.240.0070.00016.54
7.4.230.0070.00016.69
7.4.220.0150.00616.68
7.4.210.0030.01216.52
7.4.200.0030.00316.39
7.4.160.0130.00916.52
7.4.150.0100.00917.40
7.4.140.0170.00517.86
7.4.130.0100.00816.48
7.4.120.0120.00616.59
7.4.110.0110.01116.36
7.4.100.0070.01016.59
7.4.90.0040.01216.31
7.4.80.0030.01719.39
7.4.70.0130.00316.72
7.4.60.0110.00516.41
7.4.50.0000.00516.52
7.4.40.0120.00316.27
7.4.30.0110.00616.46
7.4.00.0100.00815.01
7.3.330.0030.00313.48
7.3.320.0000.00513.35
7.3.310.0030.00316.36
7.3.300.0000.00716.23
7.3.290.0090.00916.34
7.3.280.0080.00816.35
7.3.270.0150.00317.40
7.3.260.0140.00616.28
7.3.250.0080.01316.41
7.3.240.0070.01016.45
7.3.230.0170.00316.45
7.3.210.0130.00316.41
7.3.200.0090.00919.39
7.3.190.0030.01616.66
7.3.180.0130.00316.67
7.3.170.0140.00016.32
7.3.160.0110.00516.60
7.3.120.0110.00614.97
7.3.110.0080.00914.95
7.3.100.0100.00614.89
7.3.90.0080.01014.63
7.3.80.0050.01014.71
7.3.70.0050.00514.83
7.3.60.0020.01214.83
7.3.50.0020.01114.77
7.3.40.0040.00914.74
7.3.30.0070.00714.63
7.3.20.0060.00616.57
7.3.10.0060.01016.52
7.3.00.0050.00916.87
7.2.330.0100.01416.38
7.2.320.0090.01216.63
7.2.310.0060.01516.59
7.2.300.0050.01616.63
7.2.290.0120.00416.57
7.2.250.0120.00314.89
7.2.240.0050.01314.78
7.2.230.0120.00514.83
7.2.220.0050.00714.80
7.2.210.0070.01214.93
7.2.200.0070.00615.06
7.2.190.0090.00715.03
7.2.180.0030.00914.95
7.2.170.0020.00814.76
7.2.130.0110.00016.64
7.2.120.0030.00816.86
7.2.110.0040.00816.86
7.2.100.0000.01116.83
7.2.90.0050.00516.90
7.2.80.0000.00916.84
7.2.70.0030.01016.89
7.2.60.0060.00816.79
7.2.50.0030.00716.98
7.2.40.0030.00516.89
7.2.30.0030.01016.87
7.2.20.0090.00616.87
7.2.10.0000.01116.79
7.2.00.0050.00316.95
7.1.330.0100.00615.84
7.1.320.0100.00715.79
7.1.310.0050.01315.88
7.1.300.0050.00815.62
7.1.290.0030.00715.70
7.1.280.0050.00915.89
7.1.270.0070.00715.82
7.1.260.0030.00815.67
7.1.250.0070.00415.90
7.1.200.0080.00416.01
7.1.70.0040.00816.93
7.1.60.0100.01419.40
7.1.50.0090.00616.69
7.1.00.0000.07722.48
7.0.200.0040.00416.86
7.0.140.0030.07322.15
7.0.60.0100.07019.97
7.0.50.0030.08317.86
7.0.40.0030.06320.25
7.0.30.0270.09020.17
7.0.20.0370.04320.10
7.0.10.0000.05020.06
7.0.00.0070.09020.25
5.6.280.0130.06320.90
5.6.210.0170.06720.48
5.6.200.0000.09318.12
5.6.190.0100.06020.56
5.6.180.0330.04020.61
5.6.170.0200.04020.62
5.6.160.0030.09020.52
5.6.150.0070.07018.18
5.6.140.0070.05318.27
5.6.130.0000.08718.15
5.6.120.0130.08021.11
5.6.110.0170.08020.98
5.6.100.0100.04721.03
5.6.90.0170.07321.01
5.6.80.0100.08020.39
5.5.350.3870.04020.39
5.5.340.0100.04718.04
5.5.330.0070.08020.48
5.5.320.0230.07320.27
5.5.310.0170.04720.30
5.5.300.0070.05017.94
5.5.290.0000.04317.98
5.5.280.0100.05020.85
5.5.270.0230.06720.83
5.5.260.0070.09020.65
5.5.250.0000.04720.69
5.5.240.0030.07720.08
5.4.450.0900.04719.42
5.4.440.0570.05719.64
5.4.430.0500.05719.58
5.4.420.0670.05319.63
5.4.410.0070.05719.41
5.4.400.0230.04719.27
5.4.390.0170.05019.07
5.4.380.0130.05018.74
5.4.370.0170.03718.61
5.4.360.0200.03718.84
5.4.350.0070.04012.03
5.4.340.0080.03412.02
5.4.320.0050.03712.50
5.4.310.0030.04112.51
5.4.300.0050.03812.51
5.4.290.0050.03912.50
5.4.280.0070.04212.41
5.4.270.0060.03612.40
5.4.260.0070.03612.40
5.4.250.0090.03412.41
5.4.240.0050.03612.41
5.4.230.0040.04512.40
5.4.220.0040.04712.39
5.4.210.0080.03212.39
5.4.200.0050.03712.39
5.4.190.0080.04412.39
5.4.180.0080.03412.39
5.4.170.0050.04012.40
5.4.160.0070.03412.39
5.4.150.0090.04212.39
5.4.140.0070.04112.07
5.4.130.0050.03512.07
5.4.120.0050.03612.02
5.4.110.0050.03512.02
5.4.100.0050.04112.02
5.4.90.0100.04412.02
5.4.80.0070.04512.02
5.4.70.0080.04012.01
5.4.60.0120.03412.02
5.4.50.0050.03612.02
5.4.40.0070.03212.00
5.4.30.0080.03312.00
5.4.20.0050.03512.00
5.4.10.0050.03312.00
5.4.00.0060.03511.48
5.3.290.0030.04112.80
5.3.280.0070.03612.71
5.3.270.0080.04612.72
5.3.260.0080.04812.72
5.3.250.0080.04012.72
5.3.240.0060.05312.72
5.3.230.0080.04212.71
5.3.220.0090.03812.68
5.3.210.0070.05512.68
5.3.200.0100.03312.68
5.3.190.0080.04412.67
5.3.180.0100.03812.67
5.3.170.0080.04012.67
5.3.160.0030.03812.67
5.3.150.0060.03612.67
5.3.140.0040.03712.66
5.3.130.0060.04012.66
5.3.120.0050.03912.66
5.3.110.0040.04012.66
5.3.100.0120.04012.13
5.3.90.0070.03512.11
5.3.80.0060.03612.10
5.3.70.0050.03612.10
5.3.60.0050.03712.09
5.3.50.0050.03712.03
5.3.40.0030.04412.03
5.3.30.0030.03611.99
5.3.20.0070.03311.77
5.3.10.0060.04311.73
5.3.00.0080.04011.72
5.2.170.0070.0279.22
5.2.160.0060.0279.21
5.2.150.0080.0279.22
5.2.140.0070.0279.21
5.2.130.0030.0309.17
5.2.120.0050.0289.18
5.2.110.0040.0349.18
5.2.100.0030.0299.18
5.2.90.0070.0289.18
5.2.80.0020.0389.17
5.2.70.0040.0299.17
5.2.60.0060.0359.13
5.2.50.0040.0299.09
5.2.40.0030.0319.07
5.2.30.0070.0289.05
5.2.20.0110.0279.04
5.2.10.0060.0328.95
5.2.00.0050.0338.80
5.1.60.0010.0288.09
5.1.50.0040.0248.08
5.1.40.0020.0338.07
5.1.30.0070.0278.42
5.1.20.0040.0268.43
5.1.10.0040.0268.16
5.1.00.0070.0228.16
5.0.50.0030.0326.64
5.0.40.0070.0226.50
5.0.30.0020.0316.31
5.0.20.0030.0246.28
5.0.10.0010.0236.25
5.0.00.0000.0406.24
4.4.90.0060.0214.78
4.4.80.0020.0164.76
4.4.70.0030.0224.75
4.4.60.0020.0204.75
4.4.50.0050.0244.77
4.4.40.0020.0314.71
4.4.30.0040.0144.76
4.4.20.0050.0224.84
4.4.10.0030.0154.85
4.4.00.0020.0254.76
4.3.110.0020.0274.66
4.3.100.0010.0224.66
4.3.90.0020.0144.63
4.3.80.0030.0314.58
4.3.70.0030.0214.63
4.3.60.0050.0174.63
4.3.50.0050.0134.63
4.3.40.0010.0254.54
4.3.30.0030.0183.30
4.3.20.0040.0303.28
4.3.10.0010.0263.23
4.3.00.0130.0237.59

preferences:
39.23 ms | 401 KiB | 5 Q