3v4l.org

run code in 300+ PHP versions simultaneously
<?php function array_flatten($array, $keychain = '/') { $data = array(); foreach($array as $key=> $value) { if(is_array($value)) { $data = array_merge($data, array_flatten($value, $keychain.$key.'/')); } else { $data[$keychain.$key] = $value; } } return $data; } $array = array( array( 'foo' => 'bar', 'baz' => 'blah' ), array( 'foo' => 'bar', 'baz' => 'blah' ) ); var_dump(array_flatten($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)
8.3.40.0120.00318.97
8.3.30.0040.01118.79
8.3.20.0050.00318.78
8.3.10.0040.00421.21
8.3.00.0040.00421.94
8.2.170.0120.00618.91
8.2.160.0070.00722.12
8.2.150.0040.00424.18
8.2.140.0030.00624.66
8.2.130.0050.00326.16
8.2.120.0060.00321.12
8.2.110.0060.00320.94
8.2.100.0090.00317.91
8.2.90.0060.00319.30
8.2.80.0050.00317.97
8.2.70.0000.00917.75
8.2.60.0000.00818.04
8.2.50.0040.00718.07
8.2.40.0040.00418.09
8.2.30.0000.00821.28
8.2.20.0000.00717.68
8.2.10.0000.00817.79
8.2.00.0030.00517.79
8.1.270.0080.00024.66
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0090.00921.31
8.1.230.0060.00617.45
8.1.220.0060.00317.80
8.1.210.0000.00818.77
8.1.200.0040.00717.48
8.1.190.0050.00317.23
8.1.180.0040.00418.10
8.1.170.0000.00818.65
8.1.160.0040.00418.80
8.1.150.0040.00418.59
8.1.140.0060.00317.37
8.1.130.0070.00017.75
8.1.120.0000.00717.35
8.1.110.0040.00417.36
8.1.100.0000.00717.34
8.1.90.0050.00217.49
8.1.80.0000.00717.36
8.1.70.0000.00717.41
8.1.60.0030.00617.57
8.1.50.0000.00717.42
8.1.40.0030.00617.42
8.1.30.0040.00417.48
8.1.20.0000.00817.50
8.1.10.0050.00317.53
8.1.00.0070.00017.40
8.0.300.0000.00718.77
8.0.290.0040.00416.63
8.0.280.0040.00418.44
8.0.270.0070.00017.19
8.0.260.0070.00016.86
8.0.250.0000.00716.98
8.0.240.0050.00516.93
8.0.230.0070.00016.86
8.0.220.0030.00316.95
8.0.210.0000.00716.87
8.0.200.0070.00016.81
8.0.190.0040.00416.92
8.0.180.0000.00716.85
8.0.170.0030.00616.92
8.0.160.0050.00216.79
8.0.150.0050.00316.82
8.0.140.0000.00816.88
8.0.130.0030.00313.40
8.0.120.0040.00416.84
8.0.110.0040.00416.92
8.0.100.0000.00716.80
8.0.90.0040.00416.92
8.0.80.0090.00916.92
8.0.70.0000.00816.81
8.0.60.0070.00016.77
8.0.50.0040.00416.94
8.0.30.0100.00916.95
8.0.20.0130.00917.40
8.0.10.0040.00416.91
8.0.00.0060.01516.83
7.4.330.0060.00016.75
7.4.320.0070.00016.51
7.4.300.0000.00616.50
7.4.290.0000.00716.55
7.4.280.0000.00716.63
7.4.270.0070.00016.50
7.4.260.0030.00313.29
7.4.250.0000.00816.48
7.4.240.0000.00716.51
7.4.230.0000.00716.63
7.4.220.0070.01016.47
7.4.210.0090.00616.51
7.4.200.0000.00716.34
7.4.190.0030.00316.38
7.4.160.0130.00316.65
7.4.150.0100.00717.40
7.4.140.0070.01517.86
7.4.130.0100.00716.42
7.4.120.0110.00816.51
7.4.110.0090.00916.41
7.4.100.0110.00716.59
7.4.90.0120.01016.40
7.4.80.0080.01519.39
7.4.70.0120.01216.59
7.4.60.0130.00316.52
7.4.50.0030.00616.12
7.4.40.0000.01222.77
7.4.30.0040.01116.29
7.4.00.0060.00814.81
7.3.330.0000.00513.19
7.3.320.0060.00013.30
7.3.310.0000.00716.46
7.3.300.0030.00316.25
7.3.290.0050.01016.35
7.3.280.0080.00716.37
7.3.270.0120.00917.40
7.3.260.0160.00618.24
7.3.250.0150.00316.41
7.3.240.0090.00916.61
7.3.230.0080.00816.39
7.3.210.0060.01216.33
7.3.200.0090.00919.39
7.3.190.0030.01416.35
7.3.180.0130.00416.36
7.3.170.0090.00916.51
7.3.160.0060.01216.52
7.3.120.0090.00314.88
7.2.330.0140.00316.64
7.2.320.0110.01116.41
7.2.310.0040.01316.78
7.2.300.0030.01316.70
7.2.290.0000.01616.77
7.2.60.0000.00816.97
7.1.200.0100.00015.89
7.1.100.0030.01018.27
7.1.70.0050.00516.86
7.1.60.0130.01019.40
7.1.50.0130.00717.06
7.1.00.0070.04322.30
7.0.200.0000.00916.71
7.0.140.0030.07322.09
7.0.70.0100.07721.78
7.0.60.0070.07321.86
7.0.50.0030.05322.09
7.0.40.0070.04320.11
7.0.30.0070.08720.09
7.0.20.0070.08320.11
7.0.10.0000.09020.12
7.0.00.0070.08020.16
5.6.280.0030.07021.02
5.6.220.0070.07320.74
5.6.210.0070.07320.75
5.6.200.0070.08020.97
5.6.190.0130.05721.05
5.6.180.0070.08021.17
5.6.170.0030.08321.02
5.6.160.0030.07321.02
5.6.150.0030.08721.11
5.6.140.0030.04021.04
5.6.130.0000.04321.07
5.6.120.0030.06721.02
5.6.110.0030.08721.07
5.6.100.0170.06021.10
5.6.90.0030.08721.15
5.6.80.0030.08320.57
5.6.70.0100.06020.38
5.6.60.0070.08020.49
5.6.50.0070.07720.37
5.6.40.0030.05720.54
5.6.30.0100.04720.50
5.6.20.0030.08720.49
5.6.10.0030.06720.29
5.6.00.0070.07720.43
5.5.360.0100.07720.41
5.5.350.0030.08320.41
5.5.340.0070.07720.78
5.5.330.0070.06020.90
5.5.320.0030.08720.90
5.5.310.0130.07720.78
5.5.300.0030.04020.89
5.5.290.0000.04720.90
5.5.280.0170.06720.82
5.5.270.0070.08320.77
5.5.260.0030.07320.78
5.5.250.0070.05720.68
5.5.240.0170.05020.28
5.5.230.0030.08020.30
5.5.220.0130.07020.27
5.5.210.0100.07320.26
5.5.200.0030.04720.28
5.5.190.0000.05320.09
5.5.180.0030.08720.21
5.5.160.0000.08020.27
5.5.150.0070.07320.18
5.5.140.0100.06320.07
5.5.130.0030.08019.99
5.5.120.0070.07020.21
5.5.110.0100.07320.20
5.5.100.0030.08319.98
5.5.90.0100.07019.93
5.5.80.0100.06720.17
5.5.70.0000.06320.14
5.5.60.0070.07020.12
5.5.50.0000.08020.16
5.5.40.0030.05720.15
5.5.30.0070.04719.95
5.5.20.0070.04720.06
5.5.10.0100.07320.03
5.5.00.0070.07019.99
5.4.450.0100.03319.38
5.4.440.0030.06319.37
5.4.430.0000.08019.35
5.4.420.0070.07719.35
5.4.410.0030.08319.40
5.4.400.0000.08019.05
5.4.390.0000.08018.88
5.4.380.0000.08019.12
5.4.370.0030.06019.05
5.4.360.0070.07319.05
5.4.350.0030.06019.24
5.4.340.0000.08319.23
5.4.320.0030.08019.03
5.4.310.0030.08018.88
5.4.300.0130.07019.06
5.4.290.0030.07019.11
5.4.280.0070.07319.03
5.4.270.0130.07719.13
5.4.260.0070.04319.23
5.4.250.0000.07719.17
5.4.240.0170.06719.04
5.4.230.0070.07718.94
5.4.220.0030.06019.04
5.4.210.0000.07718.90
5.4.200.0100.07318.87
5.4.190.0000.08019.08
5.4.180.0030.07018.94
5.4.170.0000.08319.03
5.4.160.0070.04319.16
5.4.150.0070.07319.14
5.4.140.0030.07716.41
5.4.130.0030.07316.40
5.4.120.0100.06016.33
5.4.110.0030.07716.45
5.4.100.0030.06716.48
5.4.90.0000.06716.38
5.4.80.0030.04016.45
5.4.70.0030.03316.46
5.4.60.0000.03716.41
5.4.50.0000.03716.47
5.4.40.0000.03716.53
5.4.30.0000.04016.32
5.4.20.0030.03316.48
5.4.10.0000.04716.32
5.4.00.0030.03015.84
5.3.290.0070.06314.61
5.3.280.0000.07014.73
5.3.270.0070.07014.70
5.3.260.0070.05014.68
5.3.250.0000.08014.53
5.3.240.0030.07714.59
5.3.230.0000.07314.52
5.3.220.0070.06714.53
5.3.210.0070.07714.54
5.3.200.0070.07714.49
5.3.190.0030.07314.57
5.3.180.0000.04714.52
5.3.170.0030.04314.66
5.3.160.0030.03714.52
5.3.150.0070.03314.70
5.3.140.0000.03714.48
5.3.130.0000.03714.64
5.3.120.0000.04314.46
5.3.110.0000.04314.61
5.3.100.0030.03314.11
5.3.90.0000.03714.13
5.3.80.0000.03714.02
5.3.70.0030.03314.08
5.3.60.0000.03714.09
5.3.50.0000.03714.01
5.3.40.0000.03713.87
5.3.30.0070.06713.92
5.3.20.0030.03713.78
5.3.10.0030.07013.64
5.3.00.0030.06713.76
5.2.170.0000.03011.16
5.2.160.0000.04311.05
5.2.150.0030.05011.13
5.2.140.0030.06311.25
5.2.130.0000.06011.23
5.2.120.0000.05011.16
5.2.110.0030.03011.00
5.2.100.0000.04311.16
5.2.90.0000.04311.22
5.2.80.0030.02711.16
5.2.70.0000.03011.18
5.2.60.0000.03711.20
5.2.50.0030.02711.14
5.2.40.0000.03010.90
5.2.30.0000.04011.02
5.2.20.0000.03311.07
5.2.10.0000.03010.85
5.2.00.0000.03010.73
5.1.60.0030.02310.68
5.1.50.0000.02310.68
5.1.40.0000.02310.68
5.1.30.0030.03310.68
5.1.20.0000.02710.68
5.1.10.0000.02710.68
5.1.00.0000.02710.68
5.0.50.0070.04010.68
5.0.40.0030.02310.68
5.0.30.0000.03310.68
5.0.20.0000.02310.68
5.0.10.0000.02310.68
5.0.00.0000.03010.68
4.4.90.0000.03010.68
4.4.80.0000.01310.68
4.4.70.0000.01710.68
4.4.60.0000.01310.68
4.4.50.0030.01310.68
4.4.40.0000.02310.68
4.4.30.0030.01010.68
4.4.20.0000.01710.68
4.4.10.0000.02710.68
4.4.00.0000.04710.68
4.3.110.0000.02010.68
4.3.100.0000.03310.68
4.3.90.0000.01310.68
4.3.80.0000.02710.68
4.3.70.0000.03010.68
4.3.60.0030.01310.68
4.3.50.0000.01710.68
4.3.40.0000.03010.68
4.3.30.0030.02310.68
4.3.20.0000.03010.68
4.3.10.0030.01710.68
4.3.00.0000.01710.68

preferences:
42.19 ms | 400 KiB | 5 Q