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 8.9% of the 17410 total user notes.
Notes | Page -------+--------------------------------------------------------- 114 | http://php.net/manual/en/function.header.php 98 | http://php.net/manual/en/ref.session.php 90 | http://php.net/manual/en/function.preg-match.php 85 | http://php.net/manual/en/function.strtotime.php 83 | http://php.net/manual/en/ref.image.php 81 | http://php.net/manual/en/features.file-upload.php 80 | http://php.net/manual/en/function.readdir.php 80 | http://php.net/manual/en/function.fsockopen.php 76 | http://php.net/manual/en/function.array-search.php 75 | http://php.net/manual/en/function.rand.php 72 | http://php.net/manual/en/ref.array.php 72 | http://php.net/manual/en/function.preg-replace.php 72 | http://php.net/manual/en/reserved.variables.php 71 | http://php.net/manual/en/function.fgetcsv.php 69 | http://php.net/manual/en/function.date.php 68 | http://php.net/manual/en/ref.com.php 67 | http://php.net/manual/en/function.mssql-connect.php 66 | http://php.net/manual/en/function.strpos.php 65 | http://php.net/manual/en/function.in-array.php 64 | http://php.net/manual/en/ref.curl.php
