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 14.8% of the 5559 total user notes.
Notes | Page -------+--------------------------------------------------------- 95 | http://php.net/manual/en/function.setcookie.php 73 | http://php.net/manual/en/ref.session.php 53 | http://php.net/manual/en/ref.imap.php 51 | http://php.net/manual/en/install.windows.php 49 | http://php.net/manual/en/language.oop.php 44 | http://php.net/manual/en/function.mktime.php 42 | http://php.net/manual/en/ref.image.php 42 | http://php.net/manual/en/ref.datetime.php 41 | http://php.net/manual/en/ref.pdf.php 36 | http://php.net/manual/en/function.include.php 33 | http://php.net/manual/en/function.preg-replace.php 33 | http://php.net/manual/en/function.exec.php 31 | http://php.net/manual/en/function.date.php 31 | http://php.net/manual/en/function.fopen.php 30 | http://php.net/manual/en/function.odbc-connect.php 30 | http://php.net/manual/en/features.file-upload.php 29 | http://php.net/manual/en/function.mail.php 28 | http://php.net/manual/en/ref.oci8.php 28 | http://php.net/manual/en/ref.domxml.php 26 | http://php.net/manual/en/function.imagegif.php