3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array1 = [ '1' => '11', 'b' => 1, 3 => 33, 8 => 8 ]; $array2 = [ '1' => '22', 'b' => 2, 3 => 44, 9 => 9 ]; foreach ($array2 as $key => $value) { if (!key_exists($key, $array1)) { $array1[$key] = $value; } else { $array1[$key] = (array)$array1[$key]; $array1[$key][] = $value; } } var_export($array1);

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)
8.4.140.0100.01117.49
8.4.130.0130.00919.61
8.4.120.0100.00722.16
8.4.110.0070.01118.68
8.4.100.0080.00918.55
8.4.90.0040.00524.16
8.4.80.0130.00718.90
8.4.70.0030.00518.04
8.4.60.0130.00818.93
8.4.50.0140.00619.46
8.4.40.0040.00419.48
8.4.30.0000.01618.34
8.4.20.0130.00620.53
8.4.10.0090.00618.67
8.3.270.0150.00416.74
8.3.260.0090.00816.95
8.3.250.0060.00517.17
8.3.240.0080.01016.54
8.3.230.0040.00516.85
8.3.220.0120.00618.93
8.3.210.0100.00916.84
8.3.200.0060.00216.64
8.3.190.0050.00317.22
8.3.180.0120.00816.52
8.3.170.0110.00717.18
8.3.160.0120.00618.35
8.3.150.0110.00720.80
8.3.140.0040.00416.43
8.3.130.0070.00318.65
8.3.120.0090.00018.97
8.3.110.0110.00020.94
8.3.100.0130.00324.06
8.3.90.0090.00626.77
8.3.80.0060.00316.54
8.3.70.0100.00716.88
8.3.60.0130.00316.88
8.3.50.0180.00316.19
8.3.40.0040.01218.83
8.3.30.0000.01518.79
8.3.20.0040.00424.18
8.3.10.0070.00024.66
8.3.00.0070.00026.16
8.2.290.0080.00420.36
8.2.280.0110.00418.39
8.2.270.0070.01117.26
8.2.260.0100.00720.09
8.2.250.0060.00316.92
8.2.240.0040.00417.06
8.2.230.0030.00722.58
8.2.220.0060.00337.54
8.2.210.0040.00426.77
8.2.200.0080.00016.36
8.2.190.0190.00316.88
8.2.180.0110.00725.92
8.2.170.0090.00618.94
8.2.160.0070.01022.96
8.2.150.0040.00425.66
8.2.140.0040.00424.66
8.2.130.0000.00826.16
8.2.120.0070.00026.16
8.2.110.0050.00520.52
8.2.100.0060.00617.78
8.2.90.0100.00019.76
8.2.80.0030.00619.36
8.2.70.0030.00617.50
8.2.60.0030.00617.93
8.2.50.0040.00418.07
8.2.40.0040.00418.16
8.2.30.0000.00818.04
8.2.20.0000.00718.19
8.2.10.0000.00719.37
8.2.00.0000.00819.26
8.1.330.0110.00722.04
8.1.320.0080.01118.05
8.1.310.0110.00716.52
8.1.300.0060.00318.41
8.1.290.0000.00930.84
8.1.280.0070.01125.92
8.1.270.0070.00322.04
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0090.00023.97
8.1.230.0040.00820.74
8.1.220.0040.00417.78
8.1.210.0060.00318.77
8.1.200.0030.00617.35
8.1.190.0030.00517.35
8.1.180.0040.00418.10
8.1.170.0040.00418.70
8.1.160.0040.00418.81
8.1.150.0040.00418.94
8.1.140.0030.00518.95
8.1.130.0000.00820.20
8.1.120.0000.00717.49
8.1.110.0080.00017.51
8.1.100.0070.00017.45
8.1.90.0080.00017.40
8.1.80.0000.01017.35
8.1.70.0070.00017.38
8.1.60.0030.00517.59
8.1.50.0000.00817.49
8.1.40.0000.00817.57
8.1.30.0030.00517.66
8.1.20.0040.00417.55
8.1.10.0040.00417.41
8.1.00.0000.00717.52
8.0.300.0040.00419.86
8.0.290.0050.00316.75
8.0.280.0040.00418.41
8.0.270.0070.00017.95
8.0.260.0060.00018.57
8.0.250.0000.00716.82
8.0.240.0030.00617.00
8.0.230.0030.00516.92
8.0.220.0000.00716.76
8.0.210.0020.00516.94
8.0.200.0040.00416.93
8.0.190.0040.00417.02
8.0.180.0040.00416.81
8.0.170.0030.00616.94
8.0.160.0050.00316.85
8.0.150.0070.00016.74
8.0.140.0000.00716.78
8.0.130.0030.00313.28
8.0.120.0030.00616.88
8.0.110.0080.00016.77
8.0.100.0000.00817.00
8.0.90.0000.01016.74
8.0.80.0050.00516.94
8.0.70.0050.00316.82
8.0.60.0070.00216.76
8.0.50.0060.00316.83
8.0.30.0070.00216.78
8.0.20.0060.00416.90
8.0.10.0080.00217.02
8.0.00.0000.00916.90
7.4.330.0030.00215.55
7.4.320.0000.00616.51
7.4.300.0030.00516.45
7.4.290.0000.00816.44
7.4.280.0080.00316.51
7.4.270.0030.00316.57
7.4.260.0050.00013.29
7.4.250.0040.00416.48
7.4.240.0030.00316.64
7.4.230.0000.00716.58
7.4.220.0000.00916.31
7.4.210.0050.00516.49
7.4.200.0090.00016.68
7.4.190.0030.00716.62
7.4.180.0040.00816.31
7.4.160.0040.00416.77
7.4.150.0000.01016.63
7.4.140.0030.00716.50
7.4.130.0100.00016.27
7.4.120.0050.00516.28
7.4.110.0100.00016.28
7.4.100.0040.00416.64
7.4.90.0090.00016.21
7.4.80.0070.00216.50
7.4.70.0090.00016.57
7.4.60.0000.01016.50
7.4.50.0060.00316.21
7.4.40.0090.00016.23
7.4.30.0100.00016.57
7.4.20.0000.00916.22
7.4.10.0060.00316.56
7.4.00.0030.00616.52
7.3.330.0050.00316.40
7.3.320.0000.00513.16
7.3.310.0030.00316.37
7.3.300.0030.00316.32
7.3.290.0030.00616.36
7.3.280.0050.00516.37
7.3.270.0070.00216.30
7.3.260.0050.00516.32
7.3.250.0070.00316.28
7.3.240.0090.00016.32
7.3.230.0060.00316.27
7.3.220.0000.01016.28
7.3.210.0100.00016.28
7.3.200.0070.00216.23
7.3.190.0100.00016.31
7.3.180.0060.00216.25
7.3.170.0000.00816.31
7.3.160.0100.00016.25
7.3.150.0090.00016.26
7.3.140.0000.00916.25
7.3.130.0070.00216.30
7.3.120.0060.00316.25
7.3.110.0050.00516.24
7.3.100.0050.00516.16
7.3.90.0050.00516.43
7.3.80.0060.00316.29
7.3.70.0040.00416.42
7.3.60.0080.00016.46
7.3.50.0030.00616.44
7.3.40.0060.00316.44
7.3.30.0050.00516.31
7.3.20.0040.00816.29
7.3.10.0080.00416.29
7.3.00.0040.00716.24

preferences:
32.36 ms | 403 KiB | 5 Q