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<?php $params = array(); var_dump(explode(",", $params["key"]));
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Undefined array key "key" in /in/REBuf on line 3 Deprecated: explode(): Passing null to parameter #2 ($string) of type string is deprecated in /in/REBuf on line 3 array(1) { [0]=> string(0) "" }

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