From: info at deltateam-design dot de
Operating system: Windows XP SP2
PHP version: 5.2.1
PHP Bug Type: Unknown/Other Function
Bug description: Cannot access class-intern array using $this-> in combination
with a variable
Description:
------------
I tried to access a private variable (an array) using
$this->$error_type[$error_code], but PHP failed and gave me a notice about
a non-existent offset. Using var_dump/print_r on $this->$error_type
returned the desired array with all elements. I've double-checked
everything and the only way I found to solve this was creating a local copy
of the array.
Notice on the code:
- $this->db_error is an array with an offset called
(INVALID_CONNECTION_STRING)
- The code was called via function __get()
Reproduce code:
---------------
<?php
$error_code = 'DB_INVALID_CONNECTION_STRING';
$temp_array = explode('_', $error_code, 2);
$error_type = (string) strtolower($temp_array[0]) . '_error'; // Value:
db_error
$error_code = (string) $temp_array[1]; // Value:
INVALID_CONNECTION_STRING
// ***
// *** This does not work
// ***
echo $this->$error_type[$error_code];
// ***
// *** This does work (local copy of the array)
// ***
$error_array = $this->$error_type;
echo $error_array[$error_code];
?>
Expected result:
----------------
Return an error-message from an array identified by its error-code
Actual result:
--------------
With the local copy it prints the correct value associated with the
identifier $error_code
Without a local copy:
Notice: Undefined offset: 1 in C:\Path\To\Files\Errors.php on line 86
Notice: Undefined property: ErrorMessage::$d_error in
C:\Path\To\Files\Errors.php on line 87
Notice: Undefined property: ErrorMessage::$d in
C:\Path\To\Files\Errors.php on line 89
Notice: Undefined property: ErrorMessage::$d in
C:\Path\To\Files\Errors.php on line 89
--
Edit bug report at http://bugs.php.net/?id=41163&edit=1
--
Try a CVS snapshot (PHP 4.4):
http://bugs.php.net/fix.php?id=41163&r=trysnapshot44
Try a CVS snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=41163&r=trysnapshot52
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=41163&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=41163&r=fixedcvs
Fixed in release:
http://bugs.php.net/fix.php?id=41163&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=41163&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=41163&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=41163&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=41163&r=support
Expected behavior: http://bugs.php.net/fix.php?id=41163&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=41163&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=41163&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=41163&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=41163&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=41163&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=41163&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=41163&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=41163&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=41163&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=41163&r=mysqlcfg
