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<?php class TestClass { public function test() { echo "Testing"; } } $a=array(); $a[0]=new TestClass(); $a[1]=new TestClass(); $b=$a[3]; if (isset($b)) echo $b->test(); else echo "element is not set";
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Undefined array key 3 in /in/cZ66u on line 12 element is not set

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