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<?php $arr = array(); $key = 'x'; $v = $arr[$key]; $v = $arr['']; $v = $arr[0];
Output for rfc.property-hooks, git.master, git.master_jit
Warning: Undefined array key "x" in /in/iIlOk on line 5 Warning: Undefined array key "" in /in/iIlOk on line 6 Warning: Undefined array key 0 in /in/iIlOk on line 7

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