From:             
Operating system: 
PHP version:      Irrelevant
Package:          URL related
Bug Type:         Bug
Bug description:parse_url() incorrectly determines the start of query and 
fragment parts of URL

Description:
------------
Attached patch fixes the issue.

Test script:
---------------
$url = 'http://www.example.com#fra/gment';

echo $url . "\n";

var_dump(parse_url($url));



$url = 'http://www.example.com?p=1/param';

echo $url . "\n";

var_dump(parse_url($url));



// No host, should return false

$url = 'http://#fra/gment';

echo $url . "\n";

var_dump(parse_url($url));



// No host, should return false

$url = 'http://?p=1/param';

echo $url . "\n";

var_dump(parse_url($url));

Expected result:
----------------
http://www.example.com#fra/gment

array(3) {

  ["scheme"]=>

  string(4) "http"

  ["host"]=>

  string(15) "www.example.com"

  ["fragment"]=>

  string(9) "fra/gment"

}

http://www.example.com?p=1/param

array(3) {

  ["scheme"]=>

  string(4) "http"

  ["host"]=>

  string(15) "www.example.com"

  ["query"]=>

  string(9) "p=1/param"

}

http://#fra/gment

bool(false)

http://?p=1/param

bool(false)

Actual result:
--------------
http://www.example.com#fra/gment

array(3) {

  ["scheme"]=>

  string(4) "http"

  ["host"]=>

  string(19) "www.example.com#fra"

  ["path"]=>

  string(6) "/gment"

}

http://www.example.com?p=1/param

array(3) {

  ["scheme"]=>

  string(4) "http"

  ["host"]=>

  string(19) "www.example.com?p=1"

  ["path"]=>

  string(6) "/param"

}

http://#fra/gment

array(3) {

  ["scheme"]=>

  string(4) "http"

  ["host"]=>

  string(4) "#fra"

  ["path"]=>

  string(6) "/gment"

}

http://?p=1/param

array(3) {

  ["scheme"]=>

  string(4) "http"

  ["host"]=>

  string(4) "?p=1"

  ["path"]=>

  string(6) "/param"

}

-- 
Edit bug report at http://bugs.php.net/bug.php?id=54369&edit=1
-- 
Try a snapshot (PHP 5.2):            
http://bugs.php.net/fix.php?id=54369&r=trysnapshot52
Try a snapshot (PHP 5.3):            
http://bugs.php.net/fix.php?id=54369&r=trysnapshot53
Try a snapshot (trunk):              
http://bugs.php.net/fix.php?id=54369&r=trysnapshottrunk
Fixed in SVN:                        
http://bugs.php.net/fix.php?id=54369&r=fixed
Fixed in SVN and need be documented: 
http://bugs.php.net/fix.php?id=54369&r=needdocs
Fixed in release:                    
http://bugs.php.net/fix.php?id=54369&r=alreadyfixed
Need backtrace:                      
http://bugs.php.net/fix.php?id=54369&r=needtrace
Need Reproduce Script:               
http://bugs.php.net/fix.php?id=54369&r=needscript
Try newer version:                   
http://bugs.php.net/fix.php?id=54369&r=oldversion
Not developer issue:                 
http://bugs.php.net/fix.php?id=54369&r=support
Expected behavior:                   
http://bugs.php.net/fix.php?id=54369&r=notwrong
Not enough info:                     
http://bugs.php.net/fix.php?id=54369&r=notenoughinfo
Submitted twice:                     
http://bugs.php.net/fix.php?id=54369&r=submittedtwice
register_globals:                    
http://bugs.php.net/fix.php?id=54369&r=globals
PHP 4 support discontinued:          http://bugs.php.net/fix.php?id=54369&r=php4
Daylight Savings:                    http://bugs.php.net/fix.php?id=54369&r=dst
IIS Stability:                       
http://bugs.php.net/fix.php?id=54369&r=isapi
Install GNU Sed:                     
http://bugs.php.net/fix.php?id=54369&r=gnused
Floating point limitations:          
http://bugs.php.net/fix.php?id=54369&r=float
No Zend Extensions:                  
http://bugs.php.net/fix.php?id=54369&r=nozend
MySQL Configuration Error:           
http://bugs.php.net/fix.php?id=54369&r=mysqlcfg

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