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<?php function setifexists(&$var, $default = null) { if (!isset($var)) { $var = $default; } } setifexists($nonsense, true); var_dump($nonsense); $me = false; setifexists($me, true); var_dump($me);
Output for git.master, git.master_jit, rfc.property-hooks
bool(true) bool(false)

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