3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array1 = array( array("email" => "user1@mail", "login" => "user1", "phone" => "123", "color" => "red"), array("email" => "user2@mail", "login" => "user2", "phone" => "456", "color" => "blue"), ); $array2 = array( array("email" => "user3@mail", "login" => "user3"), array("email" => "user4@mail", "login" => "user4"), ); foreach ($array2 as &$record) { if (!isset($record["phone"])) { $record["phone"] = null; } if (!isset($record["color"])) { $record["color"] = null; } } $merged = array_merge($array1, $array2); var_export($merged);

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)
8.5.00.0130.00821.98
8.4.150.0020.00014.05
8.4.140.0110.01117.52
8.4.130.0110.00917.97
8.4.120.0120.00820.90
8.4.110.0130.00720.48
8.4.100.0100.01122.39
8.4.90.0080.00320.54
8.4.80.0120.00918.01
8.4.70.0110.01018.10
8.4.60.0130.00720.38
8.4.50.0100.01020.50
8.4.40.0060.00319.33
8.4.30.0160.00318.58
8.4.20.0120.00821.38
8.4.10.0040.00419.37
8.3.280.0080.01218.44
8.3.270.0140.00616.54
8.3.260.0120.00716.25
8.3.250.0100.01018.95
8.3.240.0120.00716.74
8.3.230.0120.00716.89
8.3.220.0070.01218.79
8.3.210.0110.00816.60
8.3.200.0050.00416.59
8.3.190.0100.00817.32
8.3.180.0090.01117.38
8.3.170.0100.00918.70
8.3.160.0110.00717.23
8.3.150.0100.01016.92
8.3.140.0060.00320.48
8.3.130.0060.00318.54
8.3.120.0090.00018.88
8.3.110.0080.00420.94
8.3.100.0000.00824.06
8.3.90.0030.00626.77
8.3.80.0040.00417.97
8.3.70.0410.01017.97
8.3.60.0470.00017.97
8.3.50.0040.01217.97
8.3.40.0380.01417.97
8.3.30.0280.00317.97
8.3.20.0200.01017.97
8.3.10.0250.00017.97
8.3.00.0150.00717.97
8.2.290.0090.00920.56
8.2.280.0130.00718.19
8.2.270.0070.01417.08
8.2.260.0000.01518.07
8.2.250.0030.00516.89
8.2.240.0040.00418.72
8.2.230.0070.00022.58
8.2.220.0080.00037.54
8.2.210.0070.01126.77
8.2.200.0090.00318.13
8.2.190.0140.01417.97
8.2.180.0290.00017.97
8.2.170.0310.00317.97
8.2.160.0280.00017.97
8.2.150.0290.00317.97
8.2.140.0310.01317.97
8.2.130.0290.00417.97
8.2.120.0320.00617.97
8.2.110.0170.00817.97
8.2.100.0340.00017.97
8.2.90.0180.00817.97
8.2.80.0230.00717.97
8.2.70.0240.00617.97
8.2.60.0080.00817.97
8.2.50.0260.00517.97
8.2.40.0260.00317.97
8.2.30.0270.00417.97
8.2.20.0370.00617.97
8.2.10.0430.00017.97
8.2.00.0340.00317.97
8.1.330.0110.00722.05
8.1.320.0160.00817.91
8.1.310.0060.00816.84
8.1.300.0090.00017.66
8.1.290.0090.00030.84
8.1.280.0280.00017.97
8.1.270.0300.00317.97
8.1.260.0260.00817.97
8.1.250.0420.00017.97
8.1.240.0270.00717.97
8.1.230.0160.00817.97
8.1.220.0150.00917.97
8.1.210.0250.00417.97
8.1.200.0280.00317.97
8.1.190.0310.00617.97
8.1.180.0290.00617.97
8.1.170.0280.00417.97
8.1.160.0290.00317.97
8.1.150.0330.01117.97
8.1.140.0400.00017.97
8.1.130.0310.00317.97
8.1.120.0100.01517.97
8.1.110.0230.00617.97
8.1.100.0190.00417.97
8.1.90.0240.00017.97
8.1.80.0170.00817.97
8.1.70.0190.01017.97
8.1.60.0360.00717.97
8.1.50.0330.01117.97
8.1.40.0400.00317.97
8.1.30.0280.01617.97
8.1.20.0400.00417.97
8.1.10.0290.01517.97
8.1.00.0380.00817.97

preferences:
30.54 ms | 403 KiB | 5 Q