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<?php function isSetTest($value){ global $$value; if ( !isset($$value)){ $$value = NULL; } return $$value; } //Undefined variable here var_dump('name' . isSetTest("value") . "\n"); //Defined variable here $ImDefined = "YES"; var_dump('name' . isSetTest("ImDefined") . "\n");
Output for git.master, git.master_jit, rfc.property-hooks
string(5) "name " string(8) "nameYES "

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