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[] = $v; } } return $merged; } $array1 = array('A' => 'Adam', 'B' => 'Bernie', 'C' => 'Chris'); $array2 = array('C' => 'Charlie', 'D' => 'David', 'E' => 'Earnslaw'); print_r($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)
8.3.60.0160.00416.75
8.3.50.0100.00822.86
8.3.40.0150.00019.04
8.3.30.0120.00319.03
8.3.20.0000.00720.34
8.3.10.0080.00023.45
8.3.00.0030.00619.50
8.2.180.0070.01016.60
8.2.170.0070.00722.96
8.2.160.0140.00319.20
8.2.150.0080.00024.18
8.2.140.0070.00024.66
8.2.130.0060.00326.16
8.2.120.0030.00621.00
8.2.110.0040.00420.57
8.2.100.0040.00718.22
8.2.90.0000.00719.17
8.2.80.0050.00317.97
8.2.70.0000.00817.61
8.2.60.0040.00417.90
8.2.50.0090.00018.07
8.2.40.0030.00619.88
8.2.30.0060.00318.18
8.2.20.0070.00017.80
8.2.10.0040.00418.18
8.2.00.0030.00617.72
8.1.280.0120.00625.92
8.1.270.0040.00423.92
8.1.260.0050.00226.35
8.1.250.0040.00428.09
8.1.240.0090.00021.82
8.1.230.0070.00318.92
8.1.220.0030.00517.79
8.1.210.0030.00518.77
8.1.200.0060.00317.23
8.1.190.0050.00317.23
8.1.180.0030.00618.10
8.1.170.0000.00818.43
8.1.160.0040.00421.94
8.1.150.0000.00718.89
8.1.140.0100.00017.46
8.1.130.0000.00717.88
8.1.120.0000.00717.48
8.1.110.0000.00817.50
8.1.100.0070.00017.39
8.1.90.0000.00817.44
8.1.80.0040.00417.38
8.1.70.0030.00317.38
8.1.60.0030.00517.61
8.1.50.0040.00417.50
8.1.40.0000.00717.50
8.1.30.0040.00417.50
8.1.20.0080.00017.70
8.1.10.0000.00817.55
8.1.00.0000.00717.58
8.0.300.0040.00418.77
8.0.290.0000.00816.75
8.0.280.0040.00418.36
8.0.270.0030.00317.35
8.0.260.0060.00017.32
8.0.250.0000.00817.04
8.0.240.0040.00417.01
8.0.230.0030.00316.95
8.0.220.0040.00417.00
8.0.210.0000.00716.97
8.0.200.0000.00716.93
8.0.190.0030.00517.05
8.0.180.0030.00316.99
8.0.170.0050.00216.97
8.0.160.0000.00716.95
8.0.150.0050.00316.93
8.0.140.0040.00416.86
8.0.130.0030.00313.38
8.0.120.0040.00416.89
8.0.110.0040.00416.95
8.0.100.0030.00516.87
8.0.90.0080.00017.01
8.0.80.0090.00616.90
8.0.70.0070.00016.79
8.0.60.0040.00416.85
8.0.50.0050.00216.91
8.0.30.0110.01416.92
8.0.20.0140.00517.40
8.0.10.0020.00517.07
8.0.00.0160.00816.80
7.4.330.0060.00015.00
7.4.320.0000.00716.47
7.4.300.0030.00316.60
7.4.290.0000.00716.51
7.4.280.0030.00616.45
7.4.270.0030.00316.48
7.4.260.0000.00716.59
7.4.250.0080.00016.49
7.4.240.0040.00416.46
7.4.230.0000.00716.51
7.4.220.0150.00316.65
7.4.210.0060.00916.54
7.4.200.0000.00716.68
7.4.160.0080.00816.46
7.4.150.0140.00517.40
7.4.140.0100.00717.86
7.4.130.0120.00516.44
7.4.120.0100.00816.62
7.4.110.0060.01216.39
7.4.100.0060.01316.44
7.4.90.0130.00316.57
7.4.80.0070.01019.39
7.4.70.0110.00616.53
7.4.60.0100.00716.58
7.4.50.0050.00316.60
7.4.40.0040.01216.37
7.4.30.0080.00816.62
7.4.00.0060.01215.15
7.3.330.0000.00513.37
7.3.320.0030.00313.32
7.3.310.0040.00416.21
7.3.300.0000.00716.30
7.3.290.0090.00616.32
7.3.280.0090.00616.30
7.3.270.0130.00717.40
7.3.260.0040.01416.23
7.3.250.0090.00816.54
7.3.240.0080.00816.60
7.3.230.0000.01716.39
7.3.210.0160.00016.42
7.3.200.0160.00019.39
7.3.190.0060.01016.28
7.3.180.0200.00016.54
7.3.170.0070.01016.54
7.3.160.0170.00016.55
7.3.120.0100.00815.06
7.3.110.0050.01314.78
7.3.100.0070.00714.80
7.3.90.0060.00714.72
7.3.80.0070.00714.70
7.3.70.0060.00814.79
7.3.60.0070.00914.76
7.3.50.0080.00714.94
7.3.40.0020.01214.85
7.3.30.0020.00814.84
7.3.20.0060.00716.69
7.3.10.0060.00816.69
7.3.00.0060.00816.57
7.2.330.0090.00916.80
7.2.320.0110.00516.48
7.2.310.0060.01216.83
7.2.300.0160.00016.76
7.2.290.0070.01016.77
7.2.250.0090.00815.19
7.2.240.0050.01314.91
7.2.230.0100.00515.09
7.2.220.0050.00814.92
7.2.210.0060.00915.12
7.2.200.0030.01214.84
7.2.190.0060.00615.18
7.2.180.0090.00615.12
7.2.170.0030.01115.16
7.2.60.0040.01116.87
7.2.00.0060.00619.14
7.1.330.0030.01215.80
7.1.320.0050.00915.89
7.1.310.0050.00715.98
7.1.300.0040.01015.83
7.1.290.0070.00515.85
7.1.280.0060.00615.75
7.1.270.0060.00815.63
7.1.260.0060.00615.78
7.1.200.0060.00615.73
7.1.100.0040.00818.26
7.1.70.0050.00317.13
7.1.60.0090.01219.46
7.1.50.0070.01116.63
7.1.00.0030.07722.35
7.0.200.0030.00716.86
7.0.140.0100.06722.01
7.0.60.0030.04020.04
7.0.50.0000.09017.75
7.0.40.0030.09320.06
7.0.30.0230.07320.11
7.0.20.0300.07020.12
7.0.10.0000.08720.08
7.0.00.0070.04320.33
5.6.280.0000.07320.79
5.6.210.0070.08320.70
5.6.200.0100.07318.19
5.6.190.0130.08020.77
5.6.180.0270.05720.61
5.6.170.0170.06320.58
5.6.160.0100.08320.76
5.6.150.0030.08718.15
5.6.140.0100.08018.14
5.6.130.0130.07318.15
5.6.120.0000.04321.12
5.6.110.0070.08321.14
5.6.100.0100.04020.97
5.6.90.0100.04020.97
5.6.80.0200.05720.48
5.5.350.0270.07320.43
5.5.340.0030.04017.98
5.5.330.0030.04020.38
5.5.320.0100.04020.42
5.5.310.0270.06320.24
5.5.300.0170.02718.03
5.5.290.0100.06317.92
5.5.280.0000.04320.87
5.5.270.0070.04020.86
5.5.260.0030.09020.88
5.5.250.0100.08020.71
5.5.240.0070.05720.26
5.4.450.0570.05719.17
5.4.440.1070.06019.58
5.4.430.0700.05319.70
5.4.420.0470.06319.61
5.4.410.0830.05019.34
5.4.400.0770.05719.16
5.4.390.0770.05319.16
5.4.380.0300.05318.47
5.4.370.0300.06018.78
5.4.360.0330.06318.53
5.4.350.0300.05718.50
5.4.340.0300.05018.53
5.4.320.0050.03812.52
5.4.310.0080.03612.51
5.4.300.0030.04012.52
5.4.290.0090.04312.50
5.4.280.0060.03512.41
5.4.270.0070.03512.41
5.4.260.0050.03912.41
5.4.250.0050.03912.40
5.4.240.0120.03412.40
5.4.230.0060.04112.40
5.4.220.0070.03512.39
5.4.210.0090.03312.39
5.4.200.0070.03712.39
5.4.190.0070.03512.39
5.4.180.0040.04212.39
5.4.170.0040.03812.40
5.4.160.0050.03812.40
5.4.150.0050.03612.39
5.4.140.0070.03612.08
5.4.130.0070.03412.07
5.4.120.0020.03912.03
5.4.110.0070.03412.03
5.4.100.0080.03412.03
5.4.90.0040.04112.03
5.4.80.0040.03712.03
5.4.70.0050.03512.02
5.4.60.0060.03312.02
5.4.50.0020.03812.02
5.4.40.0060.03312.01
5.4.30.0020.03912.01
5.4.20.0100.03112.00
5.4.10.0060.03312.01
5.4.00.0030.03811.50
5.3.290.0060.03912.80
5.3.280.0040.03912.71
5.3.270.0080.03812.72
5.3.260.0060.03912.72
5.3.250.0050.03812.72
5.3.240.0050.03812.72
5.3.230.0070.03612.71
5.3.220.0090.03412.68
5.3.210.0060.03912.68
5.3.200.0060.03612.68
5.3.190.0050.03912.68
5.3.180.0090.03512.67
5.3.170.0070.03612.66
5.3.160.0040.03812.68
5.3.150.0040.03912.67
5.3.140.0070.03512.66
5.3.130.0060.03812.65
5.3.120.0050.03912.66
5.3.110.0060.03812.66
5.3.100.0040.03812.12
5.3.90.0050.03912.11
5.3.80.0080.04512.09
5.3.70.0070.03712.09
5.3.60.0080.03412.08
5.3.50.0040.03812.02
5.3.40.0040.04112.02
5.3.30.0100.03511.98
5.3.20.0080.03911.76
5.3.10.0060.03511.73
5.3.00.0050.03711.71
5.2.170.0040.0339.21
5.2.160.0030.0309.22
5.2.150.0040.0319.21
5.2.140.0040.0319.21
5.2.130.0040.0299.18
5.2.120.0080.0259.17
5.2.110.0070.0269.18
5.2.100.0030.0309.18
5.2.90.0060.0289.18
5.2.80.0080.0269.17
5.2.70.0040.0319.18
5.2.60.0060.0289.13
5.2.50.0070.0289.09
5.2.40.0070.0269.07
5.2.30.0060.0289.05
5.2.20.0060.0279.04
5.2.10.0080.0258.95
5.2.00.0070.0278.81
5.1.60.0050.0238.09
5.1.50.0040.0268.09
5.1.40.0040.0288.07
5.1.30.0060.0338.42
5.1.20.0050.0278.44
5.1.10.0060.0288.16
5.1.00.0020.0318.16
5.0.50.0070.0186.64
5.0.40.0060.0176.50
5.0.30.0030.0326.31
5.0.20.0020.0206.28
5.0.10.0060.0186.25
5.0.00.0030.0326.25
4.4.90.0040.0164.77
4.4.80.0030.0164.75
4.4.70.0010.0174.76
4.4.60.0020.0164.76
4.4.50.0040.0144.77
4.4.40.0040.0254.71
4.4.30.0030.0154.76
4.4.20.0020.0164.84
4.4.10.0050.0134.85
4.4.00.0040.0264.76
4.3.110.0020.0174.67
4.3.100.0020.0164.67
4.3.90.0020.0154.64
4.3.80.0020.0264.58
4.3.70.0020.0164.63
4.3.60.0020.0154.63
4.3.50.0060.0134.63
4.3.40.0040.0234.54
4.3.30.0030.0153.30
4.3.20.0010.0183.29
4.3.10.0040.0143.23
4.3.00.0100.0207.56

preferences:
46.35 ms | 401 KiB | 5 Q