3v4l.org

run code in 300+ PHP versions simultaneously
<?php function dot($array, $prepend = '') { $results = array(); if (!$array) return $results; foreach ($array as $key => $value) { if (is_array($value)) { $results = array_merge($results, dot($value, $prepend.$key.'.')); if ($key === 'foo') print_r($results); } else { $results[$prepend.$key] = $value; } } return $results; } $array = [ 'foo' => [], 'bar' => [ 'baz' => 1 ], ]; print_r(dot($array, 'prefix'));

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)
8.3.60.0090.00918.18
8.3.50.0100.00821.88
8.3.40.0040.01118.83
8.3.30.0090.00919.21
8.3.20.0040.00420.34
8.3.10.0050.00323.66
8.3.00.0050.00319.23
8.2.180.0180.00416.50
8.2.170.0070.00722.96
8.2.160.0070.00720.41
8.2.150.0070.00024.18
8.2.140.0080.00024.66
8.2.130.0050.00226.16
8.2.120.0000.00722.21
8.2.110.0100.00021.93
8.2.100.0080.00417.63
8.2.90.0000.00919.22
8.2.80.0000.00817.97
8.2.70.0000.00817.63
8.2.60.0030.00617.93
8.2.50.0000.00818.07
8.2.40.0030.00619.94
8.2.30.0000.00718.04
8.2.20.0040.00417.73
8.2.10.0040.00418.13
8.2.00.0040.00417.66
8.1.280.0110.00625.92
8.1.270.0060.00323.83
8.1.260.0000.00826.35
8.1.250.0080.00028.09
8.1.240.0090.00023.98
8.1.230.0060.00618.98
8.1.220.0070.00017.74
8.1.210.0000.00818.77
8.1.200.0040.01017.36
8.1.190.0030.00517.35
8.1.180.0030.00618.10
8.1.170.0080.00020.43
8.1.160.0040.00422.00
8.1.150.0000.00718.89
8.1.140.0040.00417.37
8.1.130.0000.00717.87
8.1.120.0040.00417.37
8.1.110.0050.00317.53
8.1.100.0000.00717.30
8.1.90.0000.00717.33
8.1.80.0000.00717.37
8.1.70.0030.00517.39
8.1.60.0110.00917.51
8.1.50.0040.00417.51
8.1.40.0030.00617.41
8.1.30.0000.00817.57
8.1.20.0040.00417.50
8.1.10.0040.00417.59
8.1.00.0000.00717.58
8.0.300.0060.00318.77
8.0.290.0060.00316.75
8.0.280.0080.00018.40
8.0.270.0040.00417.29
8.0.260.0030.00317.24
8.0.250.0040.00416.97
8.0.240.0000.00616.94
8.0.230.0000.00716.96
8.0.220.0000.00716.83
8.0.210.0000.00716.90
8.0.200.0060.00016.97
8.0.190.0060.00316.87
8.0.180.0030.00516.85
8.0.170.0030.00516.98
8.0.160.0000.00716.84
8.0.150.0040.00416.95
8.0.140.0040.00416.84
8.0.130.0000.00613.37
8.0.120.0040.00416.75
8.0.110.0050.00216.79
8.0.100.0000.00716.91
8.0.90.0040.00416.69
8.0.80.0080.01516.84
8.0.70.0020.00516.96
8.0.60.0050.00316.71
8.0.50.0040.00416.94
8.0.30.0090.01117.14
8.0.20.0120.00817.40
8.0.10.0050.00217.01
8.0.00.0080.01316.83
7.4.330.0060.00015.02
7.4.320.0060.00016.41
7.4.300.0050.00216.63
7.4.290.0050.00216.49
7.4.280.0000.00716.49
7.4.270.0030.00316.61
7.4.260.0070.00016.63
7.4.250.0040.00416.45
7.4.240.0020.00616.58
7.4.230.0030.00316.42
7.4.220.0110.00716.43
7.4.210.0070.00716.45
7.4.200.0000.00716.34
7.4.160.0080.00816.49
7.4.150.0200.00417.40
7.4.140.0110.01117.86
7.4.130.0110.00616.63
7.4.120.0090.00716.54
7.4.110.0130.01016.28
7.4.100.0070.01116.31
7.4.90.0030.01416.50
7.4.80.0100.00719.39
7.4.70.0090.01116.71
7.4.60.0030.01316.58
7.4.50.0000.00816.48
7.4.40.0120.00916.39
7.4.30.0030.01316.30
7.4.00.0100.00314.95
7.3.330.0000.00713.18
7.3.320.0000.00513.36
7.3.310.0000.00716.26
7.3.300.0000.00716.23
7.3.290.0050.01016.37
7.3.280.0080.01116.36
7.3.270.0110.01417.40
7.3.260.0100.00716.52
7.3.250.0110.00616.41
7.3.240.0120.00916.32
7.3.230.0070.01316.39
7.3.210.0100.00716.22
7.3.200.0110.00419.39
7.3.190.0060.01616.46
7.3.180.0090.00616.53
7.3.170.0040.01216.69
7.3.160.0060.01016.38
7.2.330.0060.01216.77
7.2.320.0060.01016.54
7.2.310.0060.01116.68
7.2.300.0060.00916.69
7.2.290.0140.00916.59
7.2.60.0200.00016.82
7.2.00.0030.00819.21
7.1.200.0000.01215.83
7.1.100.0090.00318.12
7.1.70.0050.00217.28
7.1.60.0130.01019.32
7.1.50.0130.00916.92
7.1.00.0100.06722.44
7.0.200.0000.00716.83
7.0.140.0030.07322.04
7.0.60.0030.08319.97
7.0.50.0100.06017.84
7.0.40.0030.09720.20
7.0.30.0300.04720.23
7.0.20.0030.06320.09
7.0.10.0030.06720.07
7.0.00.0030.06320.10
5.6.210.0030.04720.62
5.6.200.0100.08318.29
5.6.190.0030.09720.68
5.6.180.0300.07320.65
5.6.170.0200.04320.52
5.6.160.0000.04720.55
5.6.150.0030.04018.21
5.6.140.0030.04318.15
5.6.130.0070.04718.16
5.6.120.0100.08321.06
5.6.110.0030.04020.98
5.6.100.0000.09021.14
5.6.90.0130.08020.95
5.6.80.0100.05720.29
5.6.70.4300.04020.38
5.5.350.0230.05020.47
5.5.340.0100.03318.10
5.5.330.0130.07720.37
5.5.320.0300.04320.27
5.5.310.0270.06720.38
5.5.300.0000.04318.01
5.5.290.0100.06317.95
5.5.280.0030.08020.68
5.5.270.0170.04320.76
5.5.260.0100.08020.97
5.5.250.0100.07720.59
5.5.240.0300.07020.36
5.4.450.0900.05719.47
5.4.440.0800.06319.59
5.4.430.0730.05719.47
5.4.420.0730.06019.30
5.4.410.0770.06319.18
5.4.400.0670.05318.88
5.4.390.0130.08019.26
5.4.380.0630.06018.87
5.4.370.0700.06318.98
5.4.360.0470.06319.31
5.4.350.0800.04319.26
5.4.340.0050.03712.01
5.4.320.0070.03612.51
5.4.310.0070.03712.50
5.4.300.0040.03912.50
5.4.290.0070.03812.50
5.4.280.0070.03412.40
5.4.270.0070.03912.40
5.4.260.0090.03912.39
5.4.250.0040.03912.40
5.4.240.0060.03612.40
5.4.230.0050.03912.39
5.4.220.0080.03912.39
5.4.210.0070.03612.39
5.4.200.0080.03612.39
5.4.190.0060.03712.38
5.4.180.0050.03712.39
5.4.170.0070.03512.39
5.4.160.0050.03612.39
5.4.150.0070.03412.38
5.4.140.0070.03612.07
5.4.130.0080.03312.05
5.4.120.0050.03612.02
5.4.110.0050.03512.01
5.4.100.0090.03112.01
5.4.90.0050.03712.02
5.4.80.0060.03612.02
5.4.70.0020.03712.01
5.4.60.0050.03512.00
5.4.50.0080.03412.01
5.4.40.0060.03512.00
5.4.30.0070.03512.00
5.4.20.0040.03612.00
5.4.10.0050.03611.99
5.4.00.0040.04011.48
5.3.290.0100.05112.80
5.3.280.0080.03612.71
5.3.270.0080.03712.73
5.3.260.0050.04012.72
5.3.250.0040.03912.72
5.3.240.0100.03712.72
5.3.230.0060.04112.71
5.3.220.0090.04012.68
5.3.210.0060.04212.68
5.3.200.0050.04412.68
5.3.190.0060.03812.68
5.3.180.0060.03712.68
5.3.170.0070.03612.67
5.3.160.0050.03612.67
5.3.150.0050.03912.68
5.3.140.0070.03612.66
5.3.130.0030.04112.66
5.3.120.0040.04012.66
5.3.110.0040.04112.66
5.3.100.0070.03612.12
5.3.90.0040.03812.11
5.3.80.0080.03712.09
5.3.70.0070.03612.09
5.3.60.0070.03612.08
5.3.50.0060.03712.02
5.3.40.0070.03512.02
5.3.30.0050.03511.99
5.3.20.0060.03511.77
5.3.10.0050.03611.73
5.3.00.0090.03311.72
5.2.170.0020.0339.22
5.2.160.0060.0299.22
5.2.150.0040.0319.22
5.2.140.0050.0309.21
5.2.130.0050.0299.18
5.2.120.0050.0299.18
5.2.110.0020.0339.19
5.2.100.0040.0299.18
5.2.90.0050.0299.18
5.2.80.0050.0299.18
5.2.70.0030.0329.18
5.2.60.0030.0319.13
5.2.50.0080.0269.10
5.2.40.0020.0319.07
5.2.30.0010.0339.05
5.2.20.0040.0299.04
5.2.10.0040.0288.95
5.2.00.0050.0288.81
5.1.60.0070.0218.09
5.1.50.0060.0228.08
5.1.40.0030.0258.07
5.1.30.0040.0258.42
5.1.20.0080.0238.44
5.1.10.0060.0248.16
5.1.00.0060.0248.16
5.0.50.0030.0216.64
5.0.40.0030.0206.51
5.0.30.0020.0336.32
5.0.20.0020.0206.28
5.0.10.0040.0196.27
5.0.00.0010.0336.25
4.4.90.0030.0154.78
4.4.80.0050.0134.75
4.4.70.0020.0184.75
4.4.60.0030.0154.75
4.4.50.0020.0164.77
4.4.40.0030.0244.70
4.4.30.0000.0184.76
4.4.20.0060.0124.84
4.4.10.0050.0134.84
4.4.00.0040.0234.76
4.3.110.0020.0164.67
4.3.100.0020.0164.67
4.3.90.0030.0144.64
4.3.80.0050.0234.58
4.3.70.0020.0164.63
4.3.60.0050.0204.63
4.3.50.0030.0214.63
4.3.40.0020.0254.54
4.3.30.0060.0213.30
4.3.20.0060.0393.29
4.3.10.0030.0203.24
4.3.00.0130.0236.99

preferences:
49 ms | 401 KiB | 5 Q