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<?php function filterKeys($array,$search){ $allowed=array_filter(array_keys($array),function($key) use ($search){return stristr($key,$search);}); return array_intersect_key($array,array_flip($allowed)); } var_dump(filterKeys(array('foo'=>'bar', 'moo'=>'baz'),'foo')); ?>
Output for git.master, git.master_jit, rfc.property-hooks
array(1) { ["foo"]=> string(3) "bar" }

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