* Predefined Functions official version known for PHP_CompatInfo 1.9.0a1 or better
* 1.1 http://cvs.php.net/viewvc.cgi/phpdoc/en/reference/apache/versions.xml
* 1.1 http://cvs.php.net/viewvc.cgi/phpdoc/en/reference/apc/versions.xml
* 1.1 http://cvs.php.net/viewvc.cgi/phpdoc/en/reference/apd/versions.xml
* 1.1 http://cvs.php.net/viewvc.cgi/phpdoc/en/reference/bc/versions.xml
* 1.2 http://cvs.php.net/viewvc.cgi/phpdoc/en/reference/bzip2/versions.xml
* 1.1 http://cvs.php.net/viewvc.cgi/phpdoc/en/reference/com/versions.xml
* 1.1 http://cvs.php.net/viewvc.cgi/phpdoc/en/reference/ctype/versions.xml
* 1.1 http://cvs.php.net/viewvc.cgi/phpdoc/en/reference/datetime/versions.xml
* 1.1 http://cvs.php.net/viewvc.cgi/phpdoc/en/reference/dom/versions.xml
* 1.2 http://cvs.php.net/viewvc.cgi/phpdoc/en/reference/filter/versions.xml
* 1.1 http://cvs.php.net/viewvc.cgi/phpdoc/en/reference/ftp/versions.xml
* 1.2 http://cvs.php.net/viewvc.cgi/phpdoc/en/reference/gmp/versions.xml
* 1.1 http://cvs.php.net/viewvc.cgi/phpdoc/en/reference/hash/versions.xml
* 1.1 http://cvs.php.net/viewvc.cgi/phpdoc/en/reference/iconv/versions.xml
* 1.1 http://cvs.php.net/viewvc.cgi/phpdoc/en/reference/image/versions.xml
* 1.3 http://cvs.php.net/viewvc.cgi/phpdoc/en/reference/json/versions.xml
* 1.1 http://cvs.php.net/viewvc.cgi/phpdoc/en/reference/mbstring/versions.xml
* 1.1 http://cvs.php.net/viewvc.cgi/phpdoc/en/reference/mysql/versions.xml
* 1.1 http://cvs.php.net/viewvc.cgi/phpdoc/en/reference/mysqli/versions.xml
* 1.1 http://cvs.php.net/viewvc.cgi/phpdoc/en/reference/openssl/versions.xml
* 1.1 http://cvs.php.net/viewvc.cgi/phpdoc/en/reference/pcre/versions.xml
* 1.1 http://cvs.php.net/viewvc.cgi/phpdoc/en/reference/pdo/versions.xml
* 1.1 http://cvs.php.net/viewvc.cgi/phpdoc/en/reference/posix/versions.xml
* 1.1 http://cvs.php.net/viewvc.cgi/phpdoc/en/reference/session/versions.xml
* 1.1 http://cvs.php.net/viewvc.cgi/phpdoc/en/reference/simplexml/versions.xml
* 1.1 http://cvs.php.net/viewvc.cgi/phpdoc/en/reference/spl/versions.xml
* 1.1 http://cvs.php.net/viewvc.cgi/phpdoc/en/reference/ssh2/versions.xml
* 1.1 http://cvs.php.net/viewvc.cgi/phpdoc/en/reference/tidy/versions.xml
* 1.1 http://cvs.php.net/viewvc.cgi/phpdoc/en/reference/wddx/versions.xml
* 1.1 http://cvs.php.net/viewvc.cgi/phpdoc/en/reference/xml/versions.xml
* 1.1 http://cvs.php.net/viewvc.cgi/phpdoc/en/reference/xmlreader/versions.xml
* 1.1 http://cvs.php.net/viewvc.cgi/phpdoc/en/reference/xmlwriter/versions.xml
* 1.1 http://cvs.php.net/viewvc.cgi/phpdoc/en/reference/xslt/versions.xml
* 1.1 http://cvs.php.net/viewvc.cgi/phpdoc/en/reference/zip/versions.xml
* 1.1 http://cvs.php.net/viewvc.cgi/phpdoc/en/reference/zlib/versions.xml