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<?php $arr1 = [1, 2, 3]; $arr2 = [2, 4, 1]; $arr1 += $arr2; print_r($arr1); $arr1 = ["foo", "bar", "baz"]; $arr2 = ["bar", "qux", "foo"]; $arr1 += $arr2; print_r($arr1); $arr1 = [1, 2, 3]; $arr2 = [2, 4, 1]; $arr1 = array_merge($arr1, $arr2); print_r($arr1); $arr1 = ["foo", "bar", "baz"]; $arr2 = ["bar", "qux", "foo"]; $arr1 = array_merge($arr1, $arr2); print_r($arr1); function returnArr($i) { return [ "foo". $i ]; } $arr = []; $arr1 = []; for ($i = 0; $i < 4; $i++) { $arr += returnArr($i); $arr1 = array_merge($arr1, returnArr($i)); } print_r($arr); print_r($arr1);
Output for 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Array ( [0] => 1 [1] => 2 [2] => 3 ) Array ( [0] => foo [1] => bar [2] => baz ) Array ( [0] => 1 [1] => 2 [2] => 3 [3] => 2 [4] => 4 [5] => 1 ) Array ( [0] => foo [1] => bar [2] => baz [3] => bar [4] => qux [5] => foo ) Array ( [0] => foo0 ) Array ( [0] => foo0 [1] => foo1 [2] => foo2 [3] => foo3 )
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Array ( [0] => 1 [1] => 2 [2] => 3 ) Array ( [0] => foo [1] => bar [2] => baz ) Array ( [0] => 1 [1] => 2 [2] => 3 [3] => 2 [4] => 4 [5] => 1 ) Array ( [0] => foo [1] => bar [2] => baz [3] => bar [4] => qux [5] => foo ) Array ( [0] => foo0 ) Array ( [0] => foo0 [1] => foo1 [2] => foo2 [3] => foo3 )
preferences:
153.8 ms | 402 KiB | 153 Q