<?php $default = array( 'a' => array( 'a' => 'a', 'b' => 'b', 'c' => 'c', ), ); $user = array( 'b' => 1, 'a' => array( 'b' => 'something', 'c' => 'something else', 'd' => 'd', ), 'c' => 2); var_export( array_replace_recursive($default, $user) );
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