3v4l.org

run code in 300+ PHP versions simultaneously
<?php $source = [ 0=>[ ['foo'=>['bar']]], 1=>[ ['biz'=>'baz'], ['a'=>'b']] ]; $return = []; $return =call_user_func_array('array_merge', $source); var_dump($return);

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)
8.3.60.0120.00616.63
8.3.50.0090.01022.02
8.3.40.0140.00718.85
8.3.30.0100.01018.73
8.3.20.0090.00020.02
8.3.10.0140.00021.73
8.3.00.0070.01120.84
8.2.180.0080.00816.50
8.2.170.0140.00722.96
8.2.160.0130.00722.13
8.2.150.0040.00824.18
8.2.140.0150.00324.66
8.2.130.0070.00026.16
8.2.120.0100.00019.70
8.2.110.0060.00322.20
8.2.100.0040.00817.63
8.2.90.0040.00419.27
8.2.80.0080.00017.97
8.2.70.0050.00317.25
8.2.60.0030.00617.68
8.2.50.0000.00818.07
8.2.40.0060.00319.88
8.2.30.0060.00317.85
8.2.20.0050.00317.54
8.2.10.0000.00818.03
8.2.00.0080.00017.73
8.1.280.0070.01425.92
8.1.270.0120.00620.65
8.1.260.0050.00326.35
8.1.250.0070.00028.09
8.1.240.0070.00319.20
8.1.230.0040.00819.16
8.1.220.0040.00417.79
8.1.210.0090.00018.77
8.1.200.0060.00617.23
8.1.190.0000.00817.25
8.1.180.0000.00818.10
8.1.170.0030.00518.59
8.1.160.0070.00021.85
8.1.150.0000.00718.81
8.1.140.0000.00819.16
8.1.130.0070.00017.77
8.1.120.0040.00417.46
8.1.110.0070.00017.34
8.1.100.0030.00317.38
8.1.90.0030.00517.35
8.1.80.0050.00217.26
8.1.70.0070.00017.36
8.1.60.0040.00417.54
8.1.50.0000.00917.43
8.1.40.0000.00817.41
8.1.30.0040.00417.59
8.1.20.0000.00717.61
8.1.10.0040.00417.38
8.1.00.0110.00017.41
8.0.300.0070.00018.77
8.0.290.0000.00816.63
8.0.280.0030.00318.27
8.0.270.0080.00017.25
8.0.260.0080.00017.18
8.0.250.0000.00716.79
8.0.240.0040.00416.83
8.0.230.0040.00416.90
8.0.220.0070.00016.71
8.0.210.0020.00516.79
8.0.200.0030.00316.77
8.0.190.0040.00416.91
8.0.180.0040.00416.78
8.0.170.0000.00816.72
8.0.160.0040.00416.93
8.0.150.0000.00716.85
8.0.140.0040.00416.73
8.0.130.0030.00313.20
8.0.120.0090.00016.81
8.0.110.0030.00516.76
8.0.100.0050.00316.64
8.0.90.0000.00716.88
8.0.80.0040.01116.85
8.0.70.0070.00016.80
8.0.60.0080.00016.68
8.0.50.0000.00716.77
8.0.30.0140.00816.97
8.0.20.0140.00917.40
8.0.10.0000.00717.00
8.0.00.0110.01016.76
7.4.330.0030.00315.03
7.4.320.0060.00016.48
7.4.300.0030.00316.57
7.4.290.0030.00316.44
7.4.280.0030.00516.36
7.4.270.0040.00416.52
7.4.260.0000.00716.36
7.4.250.0000.00716.34
7.4.240.0020.00616.39
7.4.230.0000.00716.42
7.4.220.0100.00716.54
7.4.210.0100.01116.52
7.4.200.0030.00316.38
7.4.160.0030.01316.38
7.4.150.0380.01917.40
7.4.140.0120.00817.86
7.4.130.0120.00516.51
7.4.120.0070.01016.55
7.4.110.0140.00316.48
7.4.100.0110.00716.15
7.4.90.0100.00716.36
7.4.80.0200.00616.36
7.4.70.0120.00316.33
7.4.60.0070.01016.50
7.4.50.0000.00416.45
7.4.40.0090.00716.37
7.4.30.0090.01216.23
7.4.00.0110.00414.88
7.3.330.0020.00213.07
7.3.320.0140.00012.85
7.3.310.0030.00316.07
7.3.300.0040.00416.12
7.3.290.0050.01016.14
7.3.280.0080.00916.18
7.3.270.0180.00617.40
7.3.260.0110.00716.05
7.3.250.0080.00916.15
7.3.240.0100.01116.12
7.3.230.0210.00016.50
7.3.210.0070.01316.33
7.3.200.0120.00919.39
7.3.190.0100.00616.48
7.3.180.0040.01216.43
7.3.170.0040.01716.49
7.3.160.0170.00716.04
7.3.10.0080.00416.57
7.3.00.0090.00616.45
7.2.330.0120.00816.41
7.2.320.0110.00516.45
7.2.310.0150.02816.65
7.2.300.0070.01616.56
7.2.290.0070.01016.66
7.2.130.0040.00416.72
7.2.120.0030.01416.78
7.2.110.0000.01116.57
7.2.100.0060.00316.72
7.2.90.0050.00516.59
7.2.80.0100.00316.73
7.2.70.0100.00316.73
7.2.60.0060.00516.92
7.2.50.0060.00616.51
7.2.40.0080.00716.98
7.2.30.0040.01416.74
7.2.20.0140.00416.75
7.2.10.0000.01516.80
7.2.00.0040.01217.92
7.1.250.0040.00715.84
7.1.100.0030.00917.70
7.1.70.0040.00417.13
7.1.60.0080.00417.09
7.1.50.0070.01816.55
7.1.00.0030.07722.40
7.0.200.0030.00916.61
7.0.140.0030.06322.07
7.0.60.0170.07019.80
7.0.50.0000.05317.85
7.0.40.0200.07320.30
7.0.30.0170.04020.02
7.0.20.0230.05320.11
7.0.10.0030.04720.16
7.0.00.0070.04020.01
5.6.210.0100.08720.66
5.6.200.0030.06318.21
5.6.190.0070.07320.42
5.6.180.0230.04020.43
5.6.170.0270.07720.48
5.6.160.0130.08320.49
5.6.150.0070.03718.14
5.6.140.0070.04718.18
5.6.130.0030.05318.21
5.6.120.0100.04320.89
5.6.110.0030.06320.95
5.6.100.0000.04720.96
5.6.90.0070.06020.99
5.6.80.0000.04720.50
5.5.350.0270.07720.37
5.5.340.0070.08318.02
5.5.330.0130.07320.21
5.5.320.0000.06020.17
5.5.310.0300.07020.23
5.5.300.0030.08717.88
5.5.290.0000.05317.87
5.5.280.0070.04020.67
5.5.270.0070.04720.66
5.5.260.0100.06020.83
5.5.250.0170.07320.77
5.5.240.0170.07020.25
5.4.450.0330.06719.43
5.4.440.0170.04319.58
5.4.430.0330.06019.56
5.4.420.0330.06719.56
5.4.410.0270.04018.98
5.4.400.0300.06719.18
5.4.390.0270.07019.13
5.4.380.0230.07719.08
5.4.370.0300.07319.06
5.4.360.0200.05019.25
5.4.350.0230.07719.09
5.4.340.0200.04019.09
5.4.320.0200.04719.09
5.4.310.0270.06019.09
5.4.300.0230.06019.16
5.4.290.0200.04319.13
5.4.280.0200.05319.10
5.4.270.0170.05019.08
5.4.260.0200.03718.80
5.4.250.0230.07319.08
5.4.240.0330.03019.09
5.4.230.0270.06019.08
5.4.220.0300.03018.91
5.4.210.0230.06718.78
5.4.200.0230.07719.23
5.4.190.0300.05319.15
5.4.180.0130.03718.92
5.4.170.0200.03319.13
5.4.160.0200.03718.73
5.4.150.0100.04318.79
5.4.140.0230.02316.45
5.4.130.0100.03716.54
5.4.120.0170.05016.53
5.4.110.0100.07316.39
5.4.100.0070.04016.39
5.4.90.0200.03316.20
5.4.80.0170.03316.39
5.4.70.0200.02716.21
5.4.60.0100.04316.39
5.4.50.0100.04016.18
5.4.40.0200.04016.20
5.4.30.0130.03716.36
5.4.20.0130.03316.40
5.4.10.0130.03316.43
5.4.00.0170.03715.75
5.3.290.0270.03714.54
5.3.280.0130.04714.52
5.3.270.0200.04014.48
5.3.260.0200.07014.70
5.3.250.0200.03314.70
5.3.240.0170.03314.47
5.3.230.0130.03714.56
5.3.220.0200.03314.52
5.3.210.0170.03714.48
5.3.200.0230.05314.41
5.3.190.0130.03714.40
5.3.180.0170.03314.41
5.3.170.0130.03714.41
5.3.160.0170.03314.51
5.3.150.0200.03014.41
5.3.140.0070.04314.43
5.3.130.0200.04314.39
5.3.120.0200.05014.39
5.3.110.0170.03314.39
5.3.100.0170.04013.93
5.3.90.0130.04013.97
5.3.80.0100.03713.89
5.3.70.0130.04013.89
5.3.60.0100.03714.00
5.3.50.0230.04013.80
5.3.40.0170.06313.97
5.3.30.0130.03313.80
5.3.20.0270.03713.80
5.3.10.0170.07313.80
5.3.00.0200.07313.80
5.2.170.0100.03013.80
5.2.160.0170.02313.80
5.2.150.0170.02313.80
5.2.140.0170.02713.80
5.2.130.0100.04713.80
5.2.120.0170.03013.80
5.2.110.0230.03713.80
5.2.100.0100.04313.80
5.2.90.0170.04713.80
5.2.80.0200.04313.80
5.2.70.0170.05713.80
5.2.60.0130.03713.80
5.2.50.0100.05013.80
5.2.40.0170.03713.80
5.2.30.0170.04713.80
5.2.20.0130.03013.80
5.2.10.0200.04713.80
5.2.00.0170.05013.80
5.1.60.0200.02713.80
5.1.50.0170.04713.80
5.1.40.0200.04013.80
5.1.30.0170.05313.80
5.1.20.0170.02713.80
5.1.10.0200.03713.80
5.1.00.0170.03713.80
5.0.50.0230.03013.80
5.0.40.0170.02313.80
5.0.30.0100.06013.80
5.0.20.0030.03013.80
5.0.10.0170.03313.80
5.0.00.0070.06713.80
4.4.90.0030.02313.80
4.4.80.0130.03013.80
4.4.70.0100.03013.80
4.4.60.0130.03013.80
4.4.50.0100.03313.80
4.4.40.0070.02313.80
4.4.30.0100.03313.80
4.4.20.0130.03313.80
4.4.10.0070.01313.80
4.4.00.0070.04713.80
4.3.110.0100.03313.80
4.3.100.0100.03013.80
4.3.90.0070.03713.80
4.3.80.0130.04713.80
4.3.70.0100.02713.80
4.3.60.0100.03313.80
4.3.50.0100.03313.80
4.3.40.0100.03313.80
4.3.30.0070.01713.80
4.3.20.0070.01713.80
4.3.10.0030.03713.80
4.3.00.0030.04313.80

preferences:
44.19 ms | 401 KiB | 5 Q