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@ 2014-05-13T17:57:54Z

<?php

$x = array(
    'config' => array(
        'settings' => array(
            'db' => 'a',
            'type' => 'mysql'
        ),
        'something' => 'ok',
     )
);

$y = array(
    'config' => array(
        'settings' => array(
            'db' => 'b'
        )
     )
);

$result = array_merge( $a, $b );

var_dump( $result );

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
array_merge: documentation ( source)

preferences:dark modelive preview

40.96 ms | 402 KiB | 5 Q