The PHP array_merge_recursive() function merges one or more arrays into one array. If two or more elements have the same key, a nested array is created.
<?php
$a1 = array('Car 1' => 'Lamborghini', 'Car 2' => 'Ferrari', 'Car 3' => 'Maserati');
$a2 = array('Car 1' => 'Alfa Romeo');
print_r(array_merge_recursive($a1, $a2));
?>
Output
Array ( [Car 1] => Array ( [0] => Lamborghini [1] => Alfa Romeo ) [Car 2] => Ferrari [Car 3] => Maserati )
Syntax
array_merge_recursive(array1, array2, array3, ...)
Parameters
| Parameter | Description |
|---|---|
| array1 | Specifies an array (required) |
| array2 | Specifies an array |
| array3, ... | Specifies additional arrays |
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PHP NOTES:
- When using PHP, single or double quotation marks are acceptable and work identically to one another; choose whichever you prefer, and stay consistent
- Arrays count starting from zero NOT one; so item 1 is position [0], item 2 is position [1], and item 3 is position [2] … and so on
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