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<?php $options = array(true, 'foo', 100, false); array_walk($options, function(&$val) { if (is_bool($val)) { $val = (string) $val; } }); var_dump($options);
Output for git.master, git.master_jit, rfc.property-hooks
array(4) { [0]=> string(1) "1" [1]=> string(3) "foo" [2]=> int(100) [3]=> string(0) "" }

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