3v4l.org

run code in 300+ PHP versions simultaneously
<?php $items = array( array( array("Color" => "Blue"), array("Size" => "S") ), array( array("Color" => "Blue"), array("Size" => "M") ) ); $new_items = array_map(function ($item) { return array_reduce($item, function ($seed, $key_values) { return array_map(function ($value) { $seed[] = $value; }, $key_values); return $seed; }, array()); }, $items); var_dump($new_items);

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)
8.3.70.0130.00316.63
8.3.60.0100.01018.31
8.3.50.0080.00721.21
8.3.40.0070.00718.66
8.3.30.0130.00319.09
8.3.20.0080.00020.33
8.3.10.0080.00021.84
8.3.00.0080.00022.43
8.2.180.0100.01018.29
8.2.170.0140.00022.96
8.2.160.0080.00820.56
8.2.150.0050.00324.18
8.2.140.0080.00024.66
8.2.130.0100.00726.16
8.2.120.0070.00019.77
8.2.110.0070.00322.26
8.2.100.0040.00719.25
8.2.90.0070.00019.17
8.2.80.0040.00419.27
8.2.70.0060.00317.50
8.2.60.0060.00318.05
8.2.50.0050.00318.07
8.2.40.0040.00418.28
8.2.30.0030.00618.12
8.2.20.0040.00417.61
8.2.10.0000.00717.82
8.2.00.0040.00417.74
8.1.280.0090.00925.92
8.1.270.0030.00620.53
8.1.260.0040.00426.35
8.1.250.0000.00828.09
8.1.240.0040.00423.88
8.1.230.0070.00319.21
8.1.220.0000.00817.79
8.1.210.0090.00018.77
8.1.200.0030.00617.35
8.1.190.0040.00417.53
8.1.180.0080.00018.75
8.1.170.0000.00818.52
8.1.160.0000.00722.02
8.1.150.0000.00818.68
8.1.140.0040.00417.46
8.1.130.0000.00717.84
8.1.120.0000.00717.38
8.1.110.0070.00017.46
8.1.100.0000.00817.39
8.1.90.0040.00417.37
8.1.80.0030.00317.46
8.1.70.0000.00717.36
8.1.60.0070.00017.46
8.1.50.0060.00317.51
8.1.40.0050.00317.44
8.1.30.0000.01017.65
8.1.20.0000.00817.67
8.1.10.0030.00617.39
8.1.00.0030.00617.28
8.0.300.0050.00218.77
8.0.290.0000.00817.16
8.0.280.0050.00218.33
8.0.270.0000.00717.27
8.0.260.0030.00316.78
8.0.250.0000.00716.81
8.0.240.0040.00416.91
8.0.230.0000.00716.96
8.0.220.0000.00716.93
8.0.210.0000.00716.84
8.0.200.0080.00016.97
8.0.190.0040.00416.85
8.0.180.0050.00316.78
8.0.170.0000.00816.82
8.0.160.0000.00716.93
8.0.150.0040.00416.80
8.0.140.0000.00716.90
8.0.130.0000.00613.30
8.0.120.0070.00016.77
8.0.110.0040.00416.86
8.0.100.0000.00716.86
8.0.90.0000.00816.85
8.0.80.0070.01016.93
8.0.70.0000.00716.88
8.0.60.0000.00716.89
8.0.50.0000.00716.78
8.0.30.0100.00916.99
8.0.20.0100.01017.40
8.0.10.0070.00016.89
8.0.00.0090.01016.82
7.4.330.0030.00315.00
7.4.320.0000.00616.43
7.4.300.0000.00616.61
7.4.290.0070.00016.56
7.4.280.0030.00416.48
7.4.270.0030.00316.45
7.4.260.0040.00416.39
7.4.250.0000.00716.50
7.4.240.0040.00416.46
7.4.230.0030.00316.61
7.4.220.0140.00416.59
7.4.210.0060.00816.54
7.4.200.0040.00416.34
7.4.190.0040.00416.58
7.4.160.0060.01616.36
7.4.150.0140.00317.40
7.4.140.0100.01217.86
7.4.130.0120.00416.60
7.4.120.0040.01316.54
7.4.110.0070.01016.49
7.4.100.0070.01116.57
7.4.90.0100.01016.45
7.4.80.0130.00319.39
7.4.70.0130.01016.32
7.4.60.0070.00816.52
7.4.50.0030.00316.18
7.4.40.0060.01222.77
7.4.30.0100.00616.40
7.4.00.0040.01115.05
7.3.330.0000.00513.27
7.3.320.0020.00213.18
7.3.310.0000.00716.33
7.3.300.0000.00716.18
7.3.290.0090.01216.32
7.3.280.0060.00916.31
7.3.270.0120.00617.40
7.3.260.0080.00916.44
7.3.250.0070.01316.36
7.3.240.0170.00716.48
7.3.230.0160.00316.57
7.3.210.0040.01516.31
7.3.200.0100.00719.39
7.3.190.0140.00916.34
7.3.180.0060.01016.48
7.3.170.0040.01216.31
7.3.160.0060.01016.61
7.3.120.0120.00314.52
7.2.330.0030.02116.67
7.2.320.0100.01216.34
7.2.310.0200.00316.36
7.2.300.0110.00616.50
7.2.290.0040.01216.48
7.2.00.0070.00719.22
7.1.200.0030.01315.54
7.1.100.0070.00717.91
7.1.70.0000.01016.92
7.1.60.0090.00316.98
7.1.50.0150.00616.92
7.1.00.0000.03722.41
7.0.200.0080.00416.82
7.0.140.0030.07322.09
7.0.60.0100.08319.96
7.0.50.0030.07717.87
7.0.40.0030.08720.09
7.0.30.0270.07720.26
7.0.20.0270.03020.06
7.0.10.0030.04320.30
7.0.00.0070.08720.07
5.6.280.0070.07021.08
5.6.210.0000.06320.64
5.6.200.0130.08018.25
5.6.190.0070.08320.61
5.6.180.0270.05320.65
5.6.170.0330.07320.56
5.6.160.0100.08320.55
5.6.150.0130.07318.21
5.6.140.0100.07718.21
5.6.130.0070.07718.18
5.6.120.0070.04021.00
5.6.110.0100.07321.14
5.6.100.0030.05021.00
5.6.90.0000.04320.96
5.6.80.0070.07020.41
5.6.70.4430.04320.38
5.5.350.0030.05720.50
5.5.340.0070.08318.04
5.5.330.0030.08720.21
5.5.320.0270.04020.32
5.5.310.0200.05720.30
5.5.300.0130.04717.92
5.5.290.0030.06318.03
5.5.280.0100.04020.74
5.5.270.0030.04320.88
5.5.260.0070.05020.88
5.5.250.0100.08020.78
5.5.240.0000.04320.16
5.4.450.0770.07719.20
5.4.440.0930.06719.20
5.4.430.0900.07019.36
5.4.420.0100.06019.33
5.4.410.0170.05019.21
5.4.400.0400.07018.51
5.4.390.0270.05018.61
5.4.380.0230.05718.86
5.4.370.0130.05018.76
5.4.360.0170.04718.53
5.4.350.0070.04412.03
5.4.340.0080.04412.02
5.4.320.0070.04012.51
5.4.310.0080.03912.51
5.4.300.0090.03712.51
5.4.290.0090.04412.51
5.4.280.0080.03312.41
5.4.270.0070.03912.41
5.4.260.0060.03712.41
5.4.250.0130.04719.01
5.4.240.0170.05318.97
5.4.230.0070.05719.01
5.4.220.0030.05718.95
5.4.210.0100.05018.99
5.4.200.0100.04719.00
5.4.190.0070.06718.95
5.4.180.0100.04719.05
5.4.170.0070.05318.72
5.4.160.0130.05018.95
5.4.150.0130.04718.97
5.4.140.0130.07016.39
5.4.130.0070.05016.34
5.4.120.0230.04016.58
5.4.110.0100.04716.43
5.4.100.0170.04316.41
5.4.90.0170.05716.57
5.4.80.0000.05716.42
5.4.70.0070.04716.47
5.4.60.0130.04316.50
5.4.50.0030.05316.30
5.4.40.0030.05016.35
5.4.30.0030.05016.48
5.4.20.0070.05016.39
5.4.10.0030.05316.40
5.4.00.0070.05315.87
5.3.290.0070.03912.80
5.3.280.0000.05714.69
5.3.270.0130.04714.84
5.3.260.0100.05314.64
5.3.250.0030.05714.45
5.3.240.0100.05014.70
5.3.230.0030.05314.61
5.3.220.0100.07314.49
5.3.210.0100.05014.67
5.3.200.0070.05314.80
5.3.190.0100.04714.57
5.3.180.0130.04014.55
5.3.170.0070.05014.57
5.3.160.0100.04714.75
5.3.150.0030.05714.59
5.3.140.0000.05714.65
5.3.130.0130.04314.64
5.3.120.0100.04714.46
5.3.110.0170.04314.70
5.3.100.0130.04314.07
5.3.90.0100.04713.93
5.3.80.0230.05714.03
5.3.70.0000.05314.02
5.3.60.0070.05714.11
5.3.50.0130.04014.05
5.3.40.0130.04013.80
5.3.30.0070.04714.04
5.3.20.0030.06713.80
5.3.10.0070.06313.75
5.3.00.0070.04713.64
5.2.170.0070.04011.24
5.2.160.0100.03311.16
5.2.150.0130.04711.30
5.2.140.0070.04711.05
5.2.130.0030.04311.02
5.2.120.0070.04711.11
5.2.110.0200.04011.12
5.2.100.0030.03710.85
5.2.90.0030.05710.93
5.2.80.0030.04011.11
5.2.70.0070.05011.02
5.2.60.0100.03311.06
5.2.50.0070.03711.11
5.2.40.0000.04011.15
5.2.30.0130.04010.89
5.2.20.0070.03711.05
5.2.10.0100.04310.94
5.2.00.0100.04010.78
5.1.60.0130.0239.76
5.1.50.0030.03310.15
5.1.40.0070.03010.13
5.1.30.0000.04010.39
5.1.20.0030.04710.24
5.1.10.0070.0309.95
5.1.00.0070.03010.00
5.0.50.0030.0278.60
5.0.40.0030.0338.34
5.0.30.0070.0378.45
5.0.20.0000.0278.23
5.0.10.0000.0278.25
5.0.00.0000.0407.98
4.4.90.0000.0206.61
4.4.80.0000.0206.60
4.4.70.0030.0206.60
4.4.60.0070.0176.60
4.4.50.0070.0176.60
4.4.40.0030.0306.60
4.4.30.0000.0306.60
4.4.20.0070.0236.60
4.4.10.0030.0236.11
4.4.00.0030.0336.05
4.3.110.0070.0176.03
4.3.100.0030.0206.03
4.3.90.0000.0206.03
4.3.80.0030.0306.03
4.3.70.0070.0136.03
4.3.60.0000.0236.03
4.3.50.0000.0206.03
4.3.40.0000.0336.03
4.3.30.0030.0206.03
4.3.20.0030.0206.03
4.3.10.0030.0206.03
4.3.00.0070.0206.77

preferences:
30.84 ms | 401 KiB | 5 Q