3v4l.org

run code in 300+ PHP versions simultaneously
<?php function dot($array, $prepend = '') { $results = array(); foreach ($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));

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)
8.3.70.0110.00718.27
8.3.60.0040.01118.18
8.3.50.0090.00821.25
8.3.40.0110.00418.68
8.3.30.0170.00319.09
8.3.20.0070.00020.34
8.3.10.0000.00823.52
8.3.00.0030.00519.26
8.2.190.0110.00416.75
8.2.180.0060.01316.63
8.2.170.0120.00322.96
8.2.160.0110.00420.58
8.2.150.0000.00724.18
8.2.140.0050.00324.66
8.2.130.0040.00426.16
8.2.120.0000.00822.22
8.2.110.0030.00720.93
8.2.100.0030.00917.63
8.2.90.0080.00019.17
8.2.80.0050.00317.97
8.2.70.0070.00317.75
8.2.60.0040.00418.05
8.2.50.0080.00018.07
8.2.40.0050.00519.97
8.2.30.0000.00718.11
8.2.20.0040.00417.79
8.2.10.0050.00318.18
8.2.00.0040.00417.69
8.1.280.0060.00825.92
8.1.270.0000.00823.83
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0030.00623.92
8.1.230.0080.00418.79
8.1.220.0090.00017.76
8.1.210.0000.00818.77
8.1.200.0080.00017.35
8.1.190.0000.00817.13
8.1.180.0040.00418.10
8.1.170.0080.00020.25
8.1.160.0090.00021.96
8.1.150.0000.00718.84
8.1.140.0050.00217.35
8.1.130.0030.00317.86
8.1.120.0050.00317.45
8.1.110.0040.00417.46
8.1.100.0050.00217.34
8.1.90.0000.00717.44
8.1.80.0000.00717.43
8.1.70.0070.00017.41
8.1.60.0100.00617.58
8.1.50.0030.00517.49
8.1.40.0070.00017.47
8.1.30.0040.00417.51
8.1.20.0000.00717.68
8.1.10.0070.00017.39
8.1.00.0070.00017.50
8.0.300.0030.00518.77
8.0.290.0040.00416.75
8.0.280.0000.00718.45
8.0.270.0000.00717.25
8.0.260.0030.00317.16
8.0.250.0070.00016.96
8.0.240.0030.00316.96
8.0.230.0030.00316.85
8.0.220.0030.00316.79
8.0.210.0030.00316.77
8.0.200.0000.00916.81
8.0.190.0050.00216.82
8.0.180.0040.00416.81
8.0.170.0000.00816.85
8.0.160.0000.00816.77
8.0.150.0030.00516.88
8.0.140.0040.00416.83
8.0.130.0050.00013.32
8.0.120.0050.00216.81
8.0.110.0040.00416.79
8.0.100.0040.00416.80
8.0.90.0040.00416.72
8.0.80.0120.00916.80
8.0.70.0040.00416.84
8.0.60.0040.00416.75
8.0.50.0040.00416.77
8.0.30.0050.01517.11
8.0.20.0110.00817.40
8.0.10.0040.00416.90
8.0.00.0100.01016.98
7.4.330.0030.00315.02
7.4.320.0000.00616.50
7.4.300.0060.00016.59
7.4.290.0030.00316.41
7.4.280.0000.00816.59
7.4.270.0030.00316.57
7.4.260.0030.00516.62
7.4.250.0040.00416.36
7.4.240.0030.00316.52
7.4.230.0000.00716.61
7.4.220.0070.01016.48
7.4.210.0140.00016.69
7.4.200.0070.00016.44
7.4.160.0080.00816.50
7.4.150.0090.01217.40
7.4.140.0090.01217.86
7.4.130.0080.00816.40
7.4.120.0100.00616.46
7.4.110.0000.01616.57
7.4.100.0140.00816.33
7.4.90.0150.00316.50
7.4.80.0090.01219.39
7.4.70.0090.01516.68
7.4.60.0060.01216.43
7.4.50.0000.00816.31
7.4.40.0000.02016.46
7.4.30.0090.01216.53
7.4.00.0030.01014.72
7.3.330.0030.00313.37
7.3.320.0030.00313.37
7.3.310.0040.00416.22
7.3.300.0000.00716.37
7.3.290.0090.00616.39
7.3.280.0080.01116.41
7.3.270.0180.00617.40
7.3.260.0130.00316.71
7.3.250.0070.00916.40
7.3.240.0110.00616.48
7.3.230.0130.00316.39
7.3.210.0060.01016.45
7.3.200.0040.01219.39
7.3.190.0120.01116.67
7.3.180.0120.00316.51
7.3.170.0080.01216.59
7.3.160.0160.00016.60
7.2.330.0060.01216.74
7.2.320.0100.00616.88
7.2.310.0060.01016.66
7.2.300.0130.00716.74
7.2.290.0130.01316.55
7.2.00.0000.01219.50
7.1.200.0050.00515.92
7.1.100.0040.01118.14
7.1.70.0100.00017.19
7.1.60.0090.00316.98
7.1.50.0070.01416.99
7.1.00.0130.07022.54
7.0.200.0080.01116.48
7.0.140.0000.07322.05
7.0.60.0030.07719.75
7.0.50.0230.06717.91
7.0.40.0100.07720.26
7.0.30.0370.07320.30
7.0.20.0230.05320.08
7.0.10.0100.08320.30
7.0.00.0070.04020.24
5.6.280.0070.07021.15
5.6.210.0130.03320.45
5.6.200.0070.07018.27
5.6.190.0070.04020.51
5.6.180.0270.07720.52
5.6.170.0330.06720.62
5.6.160.0030.04020.41
5.6.150.0070.03718.12
5.6.140.0070.04718.22
5.6.130.0130.07318.12
5.6.120.0030.06321.13
5.6.110.0030.04321.13
5.6.100.0130.08320.98
5.6.90.0170.06021.02
5.6.80.0030.07020.36
5.6.70.4400.04020.41
5.5.350.0370.06720.39
5.5.340.0030.04018.01
5.5.330.0130.08020.27
5.5.320.0270.04020.51
5.5.310.0270.04720.38
5.5.300.0100.08017.96
5.5.290.0100.04017.98
5.5.280.0100.04320.76
5.5.270.0170.07720.97
5.5.260.0100.08320.97
5.5.250.0130.06320.65
5.5.240.0070.06720.35
5.4.450.0130.05319.65
5.4.440.0730.05719.74
5.4.430.0930.04319.69
5.4.420.0770.05019.16
5.4.410.0830.06719.51
5.4.400.0730.05019.23
5.4.390.1000.06019.13
5.4.380.1000.06319.05
5.4.370.0900.06019.22
5.4.360.0170.05719.14
5.4.350.0670.06319.13
5.4.340.0080.03512.02
5.4.320.0070.04612.50
5.4.310.0030.04112.50
5.4.300.0030.03912.50
5.4.290.0020.04212.50
5.4.280.0070.03412.40
5.4.270.0080.03312.40
5.4.260.0060.05312.40
5.4.250.0070.04112.40
5.4.240.0090.03512.40
5.4.230.0080.04412.39
5.4.220.0090.03712.39
5.4.210.0120.03812.39
5.4.200.0070.04012.39
5.4.190.0080.03912.38
5.4.180.0120.03412.39
5.4.170.0080.03412.39
5.4.160.0050.03612.39
5.4.150.0050.03912.39
5.4.140.0020.04112.07
5.4.130.0090.03812.06
5.4.120.0090.04612.02
5.4.110.0060.04012.01
5.4.100.0080.04412.01
5.4.90.0060.03512.01
5.4.80.0090.03412.01
5.4.70.0050.03612.01
5.4.60.0070.03312.01
5.4.50.0040.04212.01
5.4.40.0070.03212.00
5.4.30.0070.03411.99
5.4.20.0080.04112.00
5.4.10.0110.04112.00
5.4.00.0050.04411.48
5.3.290.0060.04912.80
5.3.280.0070.04012.71
5.3.270.0090.04112.72
5.3.260.0060.03812.72
5.3.250.0060.04412.72
5.3.240.0050.04212.72
5.3.230.0080.03712.71
5.3.220.0070.03612.68
5.3.210.0070.03812.68
5.3.200.0030.04112.68
5.3.190.0060.05012.68
5.3.180.0070.03712.67
5.3.170.0070.03912.67
5.3.160.0050.03912.67
5.3.150.0070.03512.67
5.3.140.0060.03612.66
5.3.130.0040.03912.65
5.3.120.0060.03912.66
5.3.110.0090.03712.66
5.3.100.0080.04012.13
5.3.90.0040.03912.11
5.3.80.0050.03812.09
5.3.70.0080.03312.09
5.3.60.0060.03712.08
5.3.50.0070.03512.03
5.3.40.0060.03612.03
5.3.30.0060.03411.98
5.3.20.0060.03511.77
5.3.10.0050.03511.73
5.3.00.0050.04211.72
5.2.170.0050.0329.22
5.2.160.0050.0299.22
5.2.150.0050.0309.22
5.2.140.0030.0329.21
5.2.130.0050.0289.18
5.2.120.0030.0299.18
5.2.110.0060.0289.19
5.2.100.0060.0269.18
5.2.90.0040.0299.18
5.2.80.0050.0339.17
5.2.70.0070.0349.17
5.2.60.0030.0319.13
5.2.50.0050.0329.10
5.2.40.0070.0279.07
5.2.30.0060.0309.05
5.2.20.0050.0369.04
5.2.10.0100.0338.94
5.2.00.0100.0288.81
5.1.60.0060.0308.09
5.1.50.0070.0238.09
5.1.40.0040.0328.07
5.1.30.0030.0298.42
5.1.20.0100.0258.44
5.1.10.0050.0258.16
5.1.00.0060.0248.17
5.0.50.0050.0216.64
5.0.40.0050.0176.50
5.0.30.0060.0296.31
5.0.20.0040.0196.29
5.0.10.0040.0296.27
5.0.00.0030.0336.26
4.4.90.0030.0154.78
4.4.80.0060.0154.76
4.4.70.0030.0154.76
4.4.60.0040.0194.75
4.4.50.0020.0164.77
4.4.40.0020.0254.71
4.4.30.0040.0144.76
4.4.20.0010.0174.84
4.4.10.0050.0144.85
4.4.00.0050.0224.76
4.3.110.0020.0164.67
4.3.100.0020.0164.66
4.3.90.0020.0164.64
4.3.80.0060.0294.58
4.3.70.0050.0144.63
4.3.60.0020.0154.63
4.3.50.0050.0134.62
4.3.40.0040.0234.54
4.3.30.0030.0203.30
4.3.20.0040.0163.28
4.3.10.0010.0183.25
4.3.00.0100.0276.99

preferences:
32.62 ms | 401 KiB | 5 Q