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<?php $data = array( array("foo" => array()), array("foo" => array(3,2)), array("foo" => array(3)), ); var_dump(array_filter($data, function($value) { return in_array(3,$value['foo']); }));
Output for git.master, git.master_jit, rfc.property-hooks
array(2) { [1]=> array(1) { ["foo"]=> array(2) { [0]=> int(3) [1]=> int(2) } } [2]=> array(1) { ["foo"]=> array(1) { [0]=> int(3) } } }

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