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 11.3% of the 9530 total user notes.

Notes  |  Page
-------+---------------------------------------------------------
   88  | http://php.net/manual/en/function.header.php
   81  | http://php.net/manual/en/language.oop.php
   80  | http://php.net/manual/en/function.preg-replace.php
   73  | http://php.net/manual/en/function.date.php
   60  | http://php.net/manual/en/ref.imap.php
   57  | http://php.net/manual/en/function.mktime.php
   56  | http://php.net/manual/en/features.file-upload.php
   56  | http://php.net/manual/en/ref.mail.php
   51  | http://php.net/manual/en/function.strtotime.php
   48  | http://php.net/manual/en/function.exec.php
   47  | http://php.net/manual/en/function.setcookie.php
   45  | http://php.net/manual/en/function.imagettftext.php
   44  | http://php.net/manual/en/ref.domxml.php
   44  | http://php.net/manual/en/function.ereg.php
   42  | http://php.net/manual/en/function.rand.php
   42  | http://php.net/manual/en/ref.datetime.php
   42  | http://php.net/manual/en/install.apache2.php
   42  | http://php.net/manual/en/function.odbc-connect.php
   41  | http://php.net/manual/en/ref.exec.php
   40  | http://php.net/manual/en/language.variables.scope.php