From: [EMAIL PROTECTED]
Operating system: Windows2000
PHP version: 4.4.4
PHP Bug Type: Scripting Engine problem
Bug description: array_key_exists inconsistent behavior
Description:
------------
Array indexes can be resources - in this case they are casted to int
automatically without any warning (E_STRICT is turned off in PHP5).
Hovewer, array_key_exists() throws warning if resource is passed as a key
and fails to recognize the key.
This leads to confusion and is illustrated below.
More logical behavior is to make conversion automatically and display
warning only in E_STRICT mode for PHP5.
Yes, the problem persists in PHP5 as well.
Reproduce code:
---------------
<?php
$depth = array();
$parser = xml_parser_create();
$depth[$parser] = "xxx";
echo "\n -".array_key_exists((int)$parser, $depth);
echo "\n -".array_key_exists("" + $parser, $depth);
echo "\n -".array_key_exists("" . $parser, $depth);
echo "\n -".array_key_exists((int) $parser, $depth);
echo "\n".$depth[$parser];
echo "\n".$depth[(int)$parser];
echo "\n";
$z = "" + $parser;
var_dump($z);
$z = "" . $parser;
var_dump($z);
$z = (string) $parser;
var_dump($z);
$z = strval($parser);
var_dump($z);
exit();
Expected result:
----------------
Warning: array_key_exists(): The first argument should be either a string
or an integer in C:\php51\test00.php on line 8
-
-1
-
-1
xxx
int(4)
string(14) "Resource id #4"
string(14) "Resource id #4"
string(14) "Resource id #4"
Actual result:
--------------
-1
-1
-
-1
xxx
int(4)
string(14) "Resource id #4"
string(14) "Resource id #4"
string(14) "Resource id #4"
--
Edit bug report at http://bugs.php.net/?id=39764&edit=1
--
Try a CVS snapshot (PHP 4.4):
http://bugs.php.net/fix.php?id=39764&r=trysnapshot44
Try a CVS snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=39764&r=trysnapshot52
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=39764&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=39764&r=fixedcvs
Fixed in release:
http://bugs.php.net/fix.php?id=39764&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=39764&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=39764&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=39764&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=39764&r=support
Expected behavior: http://bugs.php.net/fix.php?id=39764&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=39764&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=39764&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=39764&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=39764&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=39764&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=39764&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=39764&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=39764&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=39764&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=39764&r=mysqlcfg
