3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = [ 'a' => 'some value', 'b' => 'some value', 'c' => 'some value' ]; $b = [ 'a' => 'another value', 'd' => 'another value', 'e' => 'another value', 'f' => 'another value' ]; $c = [ 'b' => 'some more value', 'x' => 'some more value', 'y' => 'some more value', 'z' => 'some more value' ]; $d = [$a, $b, $c]; $defaults = array_fill_keys(array_keys(array_merge(...$d)), ''); var_export( array_map(fn($row) => array_merge($defaults, $row), $d) );

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)
8.4.140.0150.00617.39
8.4.130.0090.01017.61
8.4.120.0120.00720.57
8.4.110.0060.00518.76
8.4.100.0130.00817.71
8.4.90.0110.00820.53
8.4.80.0050.00318.77
8.4.70.0080.01120.83
8.4.60.0130.00920.64
8.4.50.0110.00920.39
8.4.40.0040.00417.82
8.4.30.0080.00418.73
8.4.20.0060.00318.77
8.4.10.0130.00321.93
8.3.270.0120.00816.37
8.3.260.0140.00316.55
8.3.250.0120.00718.73
8.3.240.0130.00616.52
8.3.230.0130.00716.34
8.3.220.0140.00619.01
8.3.210.0100.01016.58
8.3.200.0060.00316.63
8.3.190.0030.00517.15
8.3.180.0100.01018.96
8.3.170.0070.01116.97
8.3.160.0120.00616.65
8.3.150.0120.00618.38
8.3.140.0060.00317.36
8.3.130.0050.00318.34
8.3.120.0060.00320.91
8.3.110.0060.00320.94
8.3.100.0030.00618.30
8.3.90.0000.00726.77
8.3.80.0060.00316.75
8.3.70.0120.00616.73
8.3.60.0100.01018.28
8.3.50.0150.00020.02
8.3.40.0100.00720.34
8.3.30.0040.01118.67
8.3.20.0080.00024.18
8.3.10.0040.00424.66
8.3.00.0000.00826.16
8.2.290.0100.00716.69
8.2.280.0070.01218.37
8.2.270.0080.01220.61
8.2.260.0140.00417.01
8.2.250.0090.00016.66
8.2.240.0080.00017.11
8.2.230.0040.00422.58
8.2.220.0080.00024.06
8.2.210.0040.00426.77
8.2.200.0000.00918.29
8.2.190.0070.00716.58
8.2.180.0060.01625.92
8.2.170.0070.00718.96
8.2.160.0100.00322.96
8.2.150.0070.00025.66
8.2.140.0060.00324.66
8.2.130.0040.00426.16
8.2.120.0070.00026.16
8.2.110.0000.00922.14
8.2.100.0080.00417.72
8.2.90.0090.00019.26
8.2.80.0030.00518.05
8.2.70.0090.00317.63
8.2.60.0030.00717.91
8.2.50.0050.00518.07
8.2.40.0040.00418.16
8.2.30.0000.00717.95
8.2.20.0050.00219.36
8.2.10.0030.00518.00
8.2.00.0070.00019.35
8.1.330.0130.00616.32
8.1.320.0060.00216.18
8.1.310.0070.00016.80
8.1.300.0030.00619.58
8.1.290.0030.00730.84
8.1.280.0070.00725.92
8.1.270.0000.00920.83
8.1.260.0080.00026.35
8.1.250.0080.00028.09
8.1.240.0000.00919.21
8.1.230.0070.00320.84
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0060.00317.35
8.1.190.0040.00417.35
8.1.180.0060.00318.10
8.1.170.0040.00418.53
8.1.160.0000.00718.86
8.1.150.0030.00518.64
8.1.140.0000.00717.51
8.1.130.0030.00318.76
8.1.120.0070.00017.47
8.1.110.0000.00817.35
8.1.100.0000.01017.43
8.1.90.0170.00017.39
8.1.80.0170.00017.40
8.1.70.0060.01117.35
8.1.60.0200.00017.61
8.1.50.0100.00017.51
8.1.40.0160.00317.47
8.1.30.0150.00417.68
8.1.20.0140.00517.63
8.1.10.0160.00317.41
8.1.00.0060.01217.39
8.0.300.0060.00318.77
8.0.290.0080.00216.75
8.0.280.0040.00418.34
8.0.270.0040.00417.99
8.0.260.0060.00018.44
8.0.250.0000.00716.92
8.0.240.0060.00316.84
8.0.230.0040.00416.93
8.0.220.0110.00416.82
8.0.210.0070.00716.86
8.0.200.0030.00616.77
8.0.190.0090.00616.81
8.0.180.0080.00816.75
8.0.170.0100.00716.95
8.0.160.0120.00416.95
8.0.150.0080.00816.81
8.0.140.0080.00816.77
8.0.130.0070.00216.80
8.0.120.0120.00416.79
8.0.110.0100.00516.87
8.0.100.0110.00416.71
8.0.90.0160.00016.81
8.0.80.0120.00516.84
8.0.70.0140.00216.88
8.0.60.0070.00716.80
8.0.50.0150.00016.71
8.0.30.0140.00016.73
8.0.20.0150.00016.91
8.0.10.0000.01517.04
7.4.330.0000.00615.55
7.4.320.0020.00616.62
7.4.300.0140.00316.48
7.4.290.0150.00316.47
7.4.280.0140.00216.57
7.4.270.0130.00416.50
7.4.260.0140.00416.51
7.4.250.0120.00416.43
7.4.240.0090.00516.55
7.4.230.0100.00516.46
7.4.220.0110.00416.59
7.4.210.0080.00016.46
7.4.200.0100.00316.59
7.4.190.0100.00516.50
7.4.180.0120.00416.51
7.4.160.0150.00016.44
7.4.150.0140.00016.52
7.4.140.0090.00616.31
7.4.130.0090.00516.42
7.4.120.0140.00016.55
7.4.110.0090.00516.34
7.4.100.0140.00016.63
7.4.90.0150.00016.53
7.4.80.0140.00216.42
7.4.70.0110.00316.46
7.4.60.0100.00516.45
7.4.50.0120.00416.37
7.4.40.0090.00316.39
7.4.30.0130.00016.33
7.4.20.0050.00516.41
7.4.10.0110.00016.34
7.4.00.0060.00616.52

preferences:
74.58 ms | 403 KiB | 5 Q