3v4l.org

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<?php $a = array(); $a["key1"] ; echo $a["key1"]; $a["key1"] = 1; echo $a["key1"];
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Undefined array key "key1" in /in/VFW2N on line 4 Warning: Undefined array key "key1" in /in/VFW2N on line 6 1

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