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Date: Sat, 11 Jul 2015 13:50:59 -0500
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Subject: Possible Bug or Bad Expectations?
From: ralph@ralphschindler.com (Ralph Schindler)

Hi all,

I am conflicted as per if what I experience in this code should be 
throwing a notice in E_STRICT:

http://3v4l.org/srm5f

   <?php
   error_reporting(E_ALL);
   $foo = ['bar' => ['baz' => 5]];
   $bar = ['box' => 'baz'];

   // this will Notice: Undefined index: boom
   var_dump(isset($foo['bar'][$bar['boom']]));


Essentially, my expectation is that anything inside an isset() would be 
immune from notices of undefined indexes, but that is not the case with 
nested array key lookups.

Is this a bad expectation to have? Or should isset() silence the nested 
undefined index as well?  I also realized this has always been the 
behavior leading me to believe I might have a bad expectation here.  In 
any case wanted to check.

Thanks,
-ralph