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Bug #28107 Weird string offset E_WARNING behaviour
Submitted: 2004-04-22 13:35 UTC Modified: 2004-04-22 17:20 UTC
From: christian at jul dot net Assigned:
Status: Not a bug Package: Arrays related
PHP Version: 5.0.0RC1 OS: Debian Linux (sid)
Private report: No CVE-ID:
 [2004-04-22 13:35 UTC] christian at jul dot net
Description:
------------
The fact that PHP5 issues an E_WARNING on illegal string offset use, gives a problem on checking values with isset and is_array. Furthermore it does not behave consistent.

Might not be a real bug, since it is the 'Backward Incompatible Changes' list, still the behavior seems to buggy to me.

Reproduce code:
---------------
test.php:
<?php
$a = 'this is not an array';

if(isset($a['foo']))
     print '1';
if(isset($a['foo']['bar']))
     print '2';
if(isset($a['foo']['bar']['doo']))
     print '3';

?>

test2.php
<?php
$a = 'this is not an array';

if(is_array($a['foo']))
     print '1';
if(is_array($a['foo']['bar']))
     print '2';
if(is_array($a['foo']['bar']['doo']))
     print '3';

?>


Expected result:
----------------
Nothing!

Maybe fatal error at line 4 in both scripts, would be ok, but not very niced designed, and doesn't fit well into the type loose scheme of PHP. IMHO.

Actual result:
--------------
Fatal error: Cannot use string offset as an array in
/var/www/sites/test.php on line 8


Fatal error: Cannot use string offset as an array in
/var/www/sites/test2.php on line 6



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 [2004-04-22 17:20 UTC] pollita@php.net
Sorry, but your problem does not imply a bug in PHP itself.  For a
list of more appropriate places to ask for help using PHP, please
visit http://www.php.net/support.php as this bug system is not the
appropriate forum for asking support questions. 

Thank you for your interest in PHP.

So don't do that. 
 [2004-04-27 03:36 UTC] aaron dot hawley at uvm dot edu
Why does it only happen with only three or more indexes specified to a variable and not two or one!?
 
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