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<?php $a = array('test','ee','dd'); $b = array(-1 => 'other'); var_dump(array_replace($b,$a));
Output for git.master, git.master_jit, rfc.property-hooks
array(4) { [-1]=> string(5) "other" [0]=> string(4) "test" [1]=> string(2) "ee" [2]=> string(2) "dd" }

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