Include an array in another array

Question

Was wondering how to add the values of one array into another to save me typing the values of one array over and over:

$array_main = array(
    '[1]' => '1',
    '[2]' => '2',
    '[3]' => '3',
    '[4]' => '4'
);

$array_1 = array( $array_main, '[5]' => '5' );

This deduces:

$array_1 = array(
    array(
        '[1]' => '1',
        '[2]' => '2',
        '[3]' => '3',
        '[4]' => '4'
    ),
    '[5]' => '5'
);

But I wanted:

$array_1 = array(
    '[1]' => '1',
    '[2]' => '2',
    '[3]' => '3',
    '[4]' => '4',
    '[5]' => '5'
);

So is there anything that can turn an array into a string? I've tried implode and array_shift but I need the whole array() not just the values..

Answer 1

<?php
$array1 = array("color" => "red", 2, 4);
$array2 = array("a", "b", "color" => "green", "shape" => "trapezoid", 4);
$result = array_merge($array1, $array2);
print_r($result);
?>

The above example will output:

Array
(
    [color] => green
    [0] => 2
    [1] => 4
    [2] => a
    [3] => b
    [shape] => trapezoid
    [4] => 4
)

http://php.net/manual/en/function.array-merge.php