Following are the top 20 pages of the manual, sorted by the number
of user notes contributed. These sections could use a polish, those
notes represent 9.2% of the 14850 total user notes.

Notes  |  Page
-------+---------------------------------------------------------
   83  | http://php.net/manual/en/ref.xml.php
   80  | http://php.net/manual/en/function.preg-replace.php
   79  | http://php.net/manual/en/ref.session.php
   77  | http://php.net/manual/en/function.mktime.php
   76  | http://php.net/manual/en/function.date.php
   73  | http://php.net/manual/en/reserved.variables.php
   72  | http://php.net/manual/en/function.header.php
   71  | http://php.net/manual/en/ref.image.php
   71  | http://php.net/manual/en/function.strtotime.php
   66  | http://php.net/manual/en/function.fsockopen.php
   65  | http://php.net/manual/en/function.strpos.php
   65  | http://php.net/manual/en/function.readdir.php
   64  | http://php.net/manual/en/features.file-upload.php
   63  | http://php.net/manual/en/function.mssql-connect.php
   63  | http://php.net/manual/en/ref.com.php
   60  | http://php.net/manual/en/function.in-array.php
   60  | http://php.net/manual/en/function.array-search.php
   59  | http://php.net/manual/en/function.preg-match.php
   57  | http://php.net/manual/en/function.substr.php
   57  | http://php.net/manual/en/function.serialize.php