Update docs, add init and examples


git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@329504 c90b9560-bf6c-de11-be94-00142212c4b1
Add seealso


git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@329505 c90b9560-bf6c-de11-be94-00142212c4b1