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Bug #38313 array_unique does not work
Submitted: 2006-08-03 12:19 UTC Modified: 2006-08-03 12:31 UTC
From: philsci at firstbrand dot co dot jp Assigned:
Status: Not a bug Package: Performance problem
PHP Version: 5.1.4 OS: Windows XP Pro, Linux (redhat)
Private report: No CVE-ID: None
 [2006-08-03 12:19 UTC] philsci at firstbrand dot co dot jp
Description:
------------
$arr_list = array( 'philsci@firstbrand.co.jp', 'philsci@firstbrand.co.jp' );
print_r( $arr_list ); echo '<br />';
array_unique( $arr_list );
print_r( $arr_list ); echo '<br />';

---------------

shows:

Array ( [0] => philsci@firstbrand.co.jp [1] => philsci@firstbrand.co.jp ) 
Array ( [0] => philsci@firstbrand.co.jp [1] => philsci@firstbrand.co.jp ) 

so, array_unique does not work at all.

Expected result:
----------------
$arr_list = array( 'philsci@firstbrand.co.jp', 'philsci@firstbrand.co.jp' );
print_r( $arr_list ); echo '<br />';
array_unique( $arr_list );
print_r( $arr_list ); echo '<br />';

---------------

should be shown as:

Array ( [0] => philsci@firstbrand.co.jp [1] => philsci@firstbrand.co.jp ) 
Array ( [0] => philsci@firstbrand.co.jp ) 


Actual result:
--------------
$arr_list = array( 'philsci@firstbrand.co.jp', 'philsci@firstbrand.co.jp' );
print_r( $arr_list ); echo '<br />';
array_unique( $arr_list );
print_r( $arr_list ); echo '<br />';


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AllCommentsChangesGit/SVN commitsRelated reports
 [2006-08-03 12:23 UTC] tony2001@php.net
RTFM:
array_unique() takes input array and **returns a new array without duplicate values**.
 [2006-08-03 12:26 UTC] philsci at firstbrand dot co dot jp
this issue is resolved when we explode an array only with \r in Windows and Linux, while \r\n nor \n work properly.
 
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