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<?php $a = "1234567890a"; $b[10] = "42"; var_dump($a["010"], isset($a["010"])); var_dump($b["010"], isset($b["010"]));
Output for git.master, git.master_jit, rfc.property-hooks
string(1) "a" bool(true) Warning: Undefined array key "010" in /in/SDpff on line 5 NULL bool(false)

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