3v4l.org

run code in 300+ PHP versions simultaneously
<?php function awesome(...$arrays) { if (!is_array($arrays)) return false; $merged = array_shift($arrays); foreach($arrays as $array) { foreach($array as $k => $v) { $merged[(string)$k] = $v; } } return $merged; } $array1 = array('A', 'B', 'C'); $array2 = array('B', 'C', 'D'); print_r($array1 + $array2); print_r(array_merge($array1, $array2)); print_r(awesome($array1, $array2));

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)
8.3.60.0100.01016.50
8.3.50.0100.01222.93
8.3.40.0110.00818.68
8.3.30.0030.01219.05
8.3.20.0040.00420.34
8.3.10.0040.00423.60
8.3.00.0030.00519.38
8.2.180.0070.01018.16
8.2.170.0040.01122.96
8.2.160.0120.00420.29
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0080.00026.16
8.2.120.0080.00021.00
8.2.110.0060.00320.52
8.2.100.0060.00618.22
8.2.90.0000.00819.20
8.2.80.0030.00617.97
8.2.70.0040.00417.63
8.2.60.0040.00417.93
8.2.50.0040.00418.07
8.2.40.0040.00419.88
8.2.30.0000.00818.00
8.2.20.0060.00317.77
8.2.10.0040.00417.93
8.2.00.0040.00417.67
8.1.280.0140.00725.92
8.1.270.0000.00723.82
8.1.260.0040.00426.35
8.1.250.0000.00728.09
8.1.240.0040.00422.05
8.1.230.0030.01019.14
8.1.220.0050.00317.74
8.1.210.0000.00818.77
8.1.200.0070.00317.48
8.1.190.0050.00317.25
8.1.180.0000.00818.10
8.1.170.0040.00418.56
8.1.160.0000.00821.89
8.1.150.0040.00418.81
8.1.140.0060.00317.48
8.1.130.0000.00717.77
8.1.120.0030.00317.38
8.1.110.0000.00817.47
8.1.100.0000.00717.48
8.1.90.0000.00717.50
8.1.80.0000.00717.51
8.1.70.0000.00717.35
8.1.60.0000.00817.59
8.1.50.0040.00417.59
8.1.40.0050.00217.54
8.1.30.0040.00417.59
8.1.20.0000.00817.70
8.1.10.0040.00417.50
8.1.00.0000.00817.39
8.0.300.0000.00918.77
8.0.290.0040.00416.75
8.0.280.0040.00418.36
8.0.270.0070.00017.26
8.0.260.0000.00617.32
8.0.250.0000.00717.02
8.0.240.0050.00316.88
8.0.230.0000.00816.98
8.0.220.0000.00616.97
8.0.210.0050.00316.97
8.0.200.0060.00016.90
8.0.190.0040.00317.04
8.0.180.0000.00717.05
8.0.170.0080.00016.85
8.0.160.0030.00416.84
8.0.150.0000.00716.94
8.0.140.0080.00016.73
8.0.130.0030.00313.45
8.0.120.0030.00516.88
8.0.110.0070.00016.98
8.0.100.0070.00016.90
8.0.90.0000.00816.87
8.0.80.0080.00816.87
8.0.70.0000.00716.82
8.0.60.0050.00216.85
8.0.50.0000.00716.99
8.0.30.0160.00317.09
8.0.20.0080.01117.40
8.0.10.0000.00716.95
8.0.00.0080.01016.93
7.4.330.0030.00315.09
7.4.320.0030.00316.52
7.4.300.0030.00316.51
7.4.290.0000.00716.50
7.4.280.0040.00416.52
7.4.270.0000.00716.59
7.4.260.0030.00316.58
7.4.250.0040.00416.47
7.4.240.0030.00516.55
7.4.230.0030.00316.34
7.4.220.0120.00916.55
7.4.210.0070.00716.57
7.4.200.0000.00716.70
7.4.160.0090.00616.55
7.4.150.0130.01017.40
7.4.140.0110.00817.86
7.4.130.0090.00816.54
7.4.120.0050.01216.56
7.4.110.0070.01016.45
7.4.100.0100.01316.53
7.4.90.0070.01016.59
7.4.80.0090.00919.39
7.4.70.0000.01716.55
7.4.60.0130.00316.54
7.4.50.0070.00016.45
7.4.40.0080.01116.37
7.4.30.0110.01116.39
7.4.00.0040.01414.82
7.3.330.0030.00313.23
7.3.320.0050.00013.29
7.3.310.0080.00016.46
7.3.300.0040.00416.32
7.3.290.0040.00916.46
7.3.280.0060.01116.35
7.3.270.0070.01017.40
7.3.260.0170.00316.63
7.3.250.0060.01116.37
7.3.240.0070.01016.34
7.3.230.0100.00616.57
7.3.210.0140.00416.38
7.3.200.0040.01319.39
7.3.190.0080.00816.36
7.3.180.0100.00716.68
7.3.170.0060.00916.38
7.3.160.0030.01316.41
7.2.330.0100.01316.79
7.2.320.0160.00316.55
7.2.310.0060.00916.86
7.2.300.0030.01316.76
7.2.290.0090.00916.47
7.2.00.0040.01119.35
7.1.100.0040.00818.11
7.1.70.0030.01317.31
7.1.60.0040.00719.46
7.1.50.0070.01416.98
7.1.00.0000.08022.32
7.0.200.0070.01016.94
7.0.140.0100.06722.10
7.0.60.0100.08319.97
7.0.50.0070.08717.88
7.0.40.0100.07720.23
7.0.30.0130.04320.24
7.0.20.0200.05020.19
7.0.10.0070.04320.15
7.0.00.0030.09020.10
5.6.280.0030.07320.86
5.6.210.0030.05020.73
5.6.200.0030.07018.25
5.6.190.0000.04720.49
5.6.180.0230.05020.61
5.6.170.0270.04020.53
5.6.160.0070.08720.54
5.6.150.0100.03718.27
5.6.140.0100.03318.12
5.6.130.0070.08318.25
5.6.120.0030.04021.02
5.6.110.0030.06021.05
5.6.100.0070.06721.09
5.6.90.0030.07321.13
5.6.80.0170.07320.39
5.6.70.0300.06720.40
5.5.350.0270.08320.43
5.5.340.0070.08317.95
5.5.330.0170.05720.27
5.5.320.0370.07720.35
5.5.310.0270.08020.25
5.5.300.0030.07717.96
5.5.290.0130.08018.04
5.5.280.0030.04020.88
5.5.270.0000.07020.97
5.5.260.0070.07320.86
5.5.250.0130.08020.49
5.5.240.0170.07720.04
5.4.450.0330.04719.33
5.4.440.0170.05319.35
5.4.430.0330.03719.43
5.4.420.0370.06719.41
5.4.410.0270.06019.18
5.4.400.0270.03019.15
5.4.390.0100.04319.15
5.4.380.0230.04019.19
5.4.370.0100.04719.19
5.4.360.0170.04019.14
5.4.350.0200.03719.09
5.4.340.0200.03719.24
5.4.320.0400.02718.88
5.4.310.0230.04719.19
5.4.300.0200.04319.16
5.4.290.0230.03319.06
5.4.280.0230.04319.15
5.4.270.0200.03719.16
5.4.260.0170.03719.22
5.4.250.0230.03318.87
5.4.240.0130.04019.05
5.4.230.0130.04018.88
5.4.220.0230.03318.98
5.4.210.0130.04319.13
5.4.200.0270.04318.99
5.4.190.0270.03318.86
5.4.180.0330.04018.96
5.4.170.0270.04719.16
5.4.160.0270.03719.11
5.4.150.0270.04319.13
5.4.140.0330.06016.36
5.4.130.0300.04016.45
5.4.120.0270.05316.35
5.4.110.0330.06316.56
5.4.100.0330.06716.56
5.4.90.0270.05316.45
5.4.80.0370.06016.50
5.4.70.0230.04316.52
5.4.60.0270.04316.38
5.4.50.0330.06316.56
5.4.40.0270.04016.53
5.4.30.0300.07016.52
5.4.20.0270.07016.34
5.4.10.0330.06316.17
5.4.00.0370.04316.11
5.3.290.0200.03714.65
5.3.280.0200.05714.60
5.3.270.0300.07714.51
5.3.260.0270.07014.66
5.3.250.0370.06714.58
5.3.240.0300.06714.77
5.3.230.0300.06014.57
5.3.220.0300.04014.69
5.3.210.0430.03714.65
5.3.200.0230.04314.48
5.3.190.0300.03714.58
5.3.180.0330.06314.79
5.3.170.0330.06014.65
5.3.160.0330.06714.68
5.3.150.0330.04314.72
5.3.140.0270.07714.47
5.3.130.0270.06714.71
5.3.120.0270.05314.55
5.3.110.0400.06314.46
5.3.100.0370.06714.13
5.3.90.0270.07014.03
5.3.80.0300.06714.09
5.3.70.0400.06313.92
5.3.60.0330.06313.90
5.3.50.0300.07713.88
5.3.40.0270.07313.95
5.3.30.0300.04713.81
5.3.20.0330.06013.59
5.3.10.0330.05013.72
5.3.00.0370.04013.64
5.2.170.0300.05312.84
5.2.160.0230.06012.84
5.2.150.0230.05712.84
5.2.140.0330.04012.84
5.2.130.0330.05012.84
5.2.120.0270.05712.84
5.2.110.0470.02312.84
5.2.100.0300.03012.84
5.2.90.0270.03312.84
5.2.80.0270.03312.84
5.2.70.0200.03312.84
5.2.60.0300.04312.84
5.2.50.0270.06012.84
5.2.40.0200.04712.84
5.2.30.0200.06312.84
5.2.20.0270.04312.84
5.2.10.0170.06012.84
5.2.00.0200.03712.84
5.1.60.0230.02312.84
5.1.50.0300.04712.84
5.1.40.0230.01712.84
5.1.30.0270.04312.84
5.1.20.0170.03312.84
5.1.10.0230.02012.84
5.1.00.0200.05012.84
5.0.50.0100.04712.84
5.0.40.0100.04312.84
5.0.30.0270.04712.84
5.0.20.0100.04712.84
5.0.10.0130.04012.84
5.0.00.0100.06312.84
4.4.90.0130.03312.84
4.4.80.0070.02012.84
4.4.70.0100.02012.84
4.4.60.0130.02312.84
4.4.50.0100.01312.84
4.4.40.0130.05012.84
4.4.30.0130.02712.84
4.4.20.0100.03712.84
4.4.10.0100.03012.84
4.4.00.0100.04712.84
4.3.110.0100.01712.84
4.3.100.0100.02712.84
4.3.90.0100.03012.84
4.3.80.0070.05012.84
4.3.70.0130.01312.84
4.3.60.0070.03712.84
4.3.50.0170.02012.84
4.3.40.0100.05012.84
4.3.30.0100.02312.84
4.3.20.0030.02712.84
4.3.10.0030.03312.84
4.3.00.0070.03712.84

preferences:
42.37 ms | 401 KiB | 5 Q