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' => '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)
8.3.60.0090.00916.25
8.3.50.0070.01222.94
8.3.40.0160.00019.02
8.3.30.0030.01019.07
8.3.20.0040.00420.35
8.3.10.0050.00223.65
8.3.00.0080.00019.38
8.2.180.0160.00316.63
8.2.170.0120.00322.96
8.2.160.0060.00920.23
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0070.00026.16
8.2.120.0080.00021.04
8.2.110.0030.00620.39
8.2.100.0060.00618.03
8.2.90.0060.00317.75
8.2.80.0050.00318.73
8.2.70.0050.00317.75
8.2.60.0050.00317.75
8.2.50.0030.00518.03
8.2.40.0080.00019.70
8.2.30.0040.00418.13
8.2.20.0040.00417.87
8.2.10.0000.00718.11
8.2.00.0040.00417.74
8.1.280.0090.00625.92
8.1.270.0050.00323.84
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0110.00623.85
8.1.230.0040.00820.91
8.1.220.0050.00318.63
8.1.210.0000.00918.77
8.1.200.0050.00317.35
8.1.190.0100.00017.47
8.1.180.0070.00318.10
8.1.170.0040.00417.62
8.1.160.0040.00421.95
8.1.150.0050.00218.76
8.1.140.0040.00417.45
8.1.130.0030.00317.82
8.1.120.0000.00717.45
8.1.110.0040.00417.46
8.1.100.0000.00717.35
8.1.90.0030.00317.35
8.1.80.0000.00717.39
8.1.70.0000.00817.37
8.1.60.0000.00917.48
8.1.50.0000.00817.57
8.1.40.0040.00417.37
8.1.30.0040.00417.43
8.1.20.0000.00817.67
8.1.10.0040.00417.59
8.1.00.0030.00617.48
8.0.300.0050.00218.77
8.0.290.0040.00716.75
8.0.280.0030.00318.45
8.0.270.0070.00017.13
8.0.260.0030.00317.25
8.0.250.0070.00016.89
8.0.240.0040.00416.88
8.0.230.0040.00416.94
8.0.220.0000.00816.89
8.0.210.0050.00316.91
8.0.200.0000.00716.93
8.0.190.0040.00417.02
8.0.180.0000.00717.02
8.0.170.0040.00416.90
8.0.160.0040.00416.96
8.0.150.0050.00316.88
8.0.140.0000.00816.85
8.0.130.0030.00313.42
8.0.120.0040.00416.91
8.0.110.0040.00416.95
8.0.100.0040.00416.77
8.0.90.0080.00016.95
8.0.80.0140.00317.01
8.0.70.0080.00016.84
8.0.60.0000.00716.83
8.0.50.0040.00416.84
8.0.30.0120.00917.22
8.0.20.0120.00817.40
8.0.10.0030.00517.14
8.0.00.0040.01416.91
7.4.330.0030.00315.14
7.4.320.0030.00316.64
7.4.300.0030.00316.59
7.4.290.0030.00316.53
7.4.280.0040.00416.59
7.4.270.0070.00016.48
7.4.260.0040.00416.56
7.4.250.0000.00716.55
7.4.240.0000.00816.59
7.4.230.0030.00316.53
7.4.220.0070.02016.68
7.4.210.0060.00916.54
7.4.200.0070.00016.41
7.4.160.0090.00616.51
7.4.150.0150.00317.40
7.4.140.0140.00617.86
7.4.130.0060.01116.41
7.4.120.0130.00516.61
7.4.110.0100.00716.63
7.4.100.0160.00616.54
7.4.90.0130.00316.47
7.4.80.0030.01419.39
7.4.70.0070.01116.42
7.4.60.0030.01316.68
7.4.50.0030.00316.47
7.4.40.0070.01016.49
7.4.30.0130.00316.62
7.4.00.0040.01214.79
7.3.330.0000.00513.31
7.3.320.0030.00313.38
7.3.310.0070.00016.22
7.3.300.0070.00016.33
7.3.290.0030.01216.36
7.3.280.0070.01116.36
7.3.270.0100.00717.40
7.3.260.0130.00716.33
7.3.250.0110.00716.45
7.3.240.0060.01216.47
7.3.230.0150.00816.57
7.3.210.0100.00616.33
7.3.200.0180.00519.39
7.3.190.0080.00916.33
7.3.180.0130.00316.27
7.3.170.0060.01016.43
7.3.160.0040.01216.63
7.2.330.0070.01016.63
7.2.320.0030.01316.52
7.2.310.0090.00816.52
7.2.300.0000.01716.72
7.2.290.0090.00816.59
7.2.60.0040.00916.84
7.2.00.0030.01019.30
7.1.200.0030.00915.63
7.1.100.0030.01018.12
7.1.70.0040.00417.35
7.1.60.0060.00619.46
7.1.50.0070.00717.14
7.1.00.0030.07722.43
7.0.200.0040.00416.86
7.0.140.0030.07321.92
7.0.60.0130.07320.02
7.0.50.0070.08317.89
7.0.40.0070.09320.09
7.0.30.0230.04320.26
7.0.20.0300.08020.06
7.0.10.0100.06320.15
7.0.00.0100.08020.30
5.6.280.0100.06321.07
5.6.210.0100.07320.65
5.6.200.0030.09018.29
5.6.190.0100.06720.60
5.6.180.0400.08020.34
5.6.170.0270.08020.47
5.6.160.0170.08020.50
5.6.150.0130.04018.21
5.6.140.0200.06018.15
5.6.130.0100.07718.12
5.6.120.0130.05021.00
5.6.110.0100.08021.12
5.6.100.0100.05320.98
5.6.90.0170.07321.11
5.6.80.0100.05320.49
5.6.70.4270.03320.52
5.5.350.0100.06020.49
5.5.340.0030.04018.07
5.5.330.0000.06020.41
5.5.320.0370.07720.25
5.5.310.0330.07720.36
5.5.300.0000.06718.03
5.5.290.0130.07317.98
5.5.280.0070.05720.98
5.5.270.0170.07020.64
5.5.260.0030.04020.67
5.5.250.0070.09020.68
5.5.240.0130.07720.17
5.4.450.0130.04319.30
5.4.440.0200.04719.64
5.4.430.0330.04319.47
5.4.420.0070.04019.54
5.4.410.0170.03719.34
5.4.400.0330.03719.32
5.4.390.0670.03719.17
5.4.380.0370.07018.76
5.4.370.0330.05718.69
5.4.360.0430.04018.83
5.4.350.0600.07718.84
5.4.340.0400.09718.61
5.4.320.0060.04312.52
5.4.310.0080.03812.51
5.4.300.0080.03612.52
5.4.290.0100.03712.50
5.4.280.0060.03512.41
5.4.270.0060.03712.40
5.4.260.0040.03912.41
5.4.250.0050.03812.40
5.4.240.0070.03712.41
5.4.230.0060.04012.40
5.4.220.0100.03312.40
5.4.210.0060.03712.40
5.4.200.0070.03712.39
5.4.190.0060.03612.39
5.4.180.0090.03612.39
5.4.170.0070.03612.40
5.4.160.0080.03412.39
5.4.150.0030.03812.39
5.4.140.0080.03612.09
5.4.130.0060.03612.06
5.4.120.0070.04112.03
5.4.110.0040.04112.02
5.4.100.0050.03512.02
5.4.90.0090.03412.03
5.4.80.0060.03812.02
5.4.70.0060.03512.02
5.4.60.0060.03512.02
5.4.50.0060.03712.02
5.4.40.0030.03812.01
5.4.30.0080.03412.01
5.4.20.0060.03612.00
5.4.10.0050.03612.01
5.4.00.0050.03711.50
5.3.290.0050.04112.80
5.3.280.0040.04812.71
5.3.270.0070.04012.72
5.3.260.0090.04612.71
5.3.250.0060.04012.72
5.3.240.0040.03912.72
5.3.230.0090.03412.71
5.3.220.0080.03612.68
5.3.210.0050.04412.68
5.3.200.0070.03612.68
5.3.190.0080.03812.68
5.3.180.0050.03712.67
5.3.170.0080.03512.67
5.3.160.0050.03712.68
5.3.150.0060.03812.68
5.3.140.0040.04012.66
5.3.130.0050.03912.66
5.3.120.0030.04112.65
5.3.110.0080.03812.66
5.3.100.0080.04112.13
5.3.90.0060.04212.11
5.3.80.0070.03712.09
5.3.70.0070.03912.09
5.3.60.0060.03912.08
5.3.50.0050.04012.02
5.3.40.0030.04712.02
5.3.30.0060.03311.98
5.3.20.0020.03811.76
5.3.10.0030.03711.73
5.3.00.0080.03311.71
5.2.170.0030.0319.21
5.2.160.0050.0309.21
5.2.150.0050.0319.22
5.2.140.0050.0309.21
5.2.130.0040.0319.17
5.2.120.0050.0319.17
5.2.110.0050.0289.18
5.2.100.0060.0269.18
5.2.90.0020.0319.18
5.2.80.0020.0329.17
5.2.70.0030.0319.17
5.2.60.0050.0339.13
5.2.50.0040.0309.09
5.2.40.0050.0329.07
5.2.30.0030.0319.05
5.2.20.0050.0289.05
5.2.10.0050.0278.95
5.2.00.0040.0308.81
5.1.60.0030.0258.09
5.1.50.0050.0298.08
5.1.40.0050.0248.07
5.1.30.0010.0308.42
5.1.20.0040.0278.44
5.1.10.0040.0298.16
5.1.00.0030.0278.16
5.0.50.0010.0236.64
5.0.40.0040.0186.49
5.0.30.0040.0316.31
5.0.20.0050.0216.29
5.0.10.0040.0256.25
5.0.00.0030.0346.24
4.4.90.0020.0164.78
4.4.80.0040.0144.76
4.4.70.0030.0164.75
4.4.60.0020.0164.75
4.4.50.0020.0164.77
4.4.40.0060.0224.71
4.4.30.0020.0164.76
4.4.20.0030.0154.84
4.4.10.0040.0154.85
4.4.00.0020.0294.76
4.3.110.0030.0164.67
4.3.100.0020.0154.67
4.3.90.0010.0164.63
4.3.80.0010.0264.59
4.3.70.0010.0164.63
4.3.60.0010.0164.63
4.3.50.0030.0154.63
4.3.40.0040.0224.54
4.3.30.0020.0163.30
4.3.20.0000.0183.28
4.3.10.0020.0163.24
4.3.00.0000.02015.68

preferences:
48.56 ms | 401 KiB | 5 Q