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<?php var_dump($vals = explode(' ', 'abc def')); var_dump(($vals && strlen(current($vals)) > 0) ? $vals : array());
Output for git.master, git.master_jit, rfc.property-hooks
array(2) { [0]=> string(3) "abc" [1]=> string(3) "def" } array(2) { [0]=> string(3) "abc" [1]=> string(3) "def" }

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