PHP MySQL - Stilson.net

CHAPTER 2• CONFIGURING YOUR ENVIRONMENTwww.it-ebooks.infoname=jason&email=jason%40example.comPaths and DirectoriesThis section introduces directives that determine PHP’s default path settings. These paths are used forincluding libraries and extensions, as well as for determining user web directories and web documentroots.include_path = stringScope: PHP_INI_ALL; Default value: NULLThe path to which this parameter is set serves as the base path used by functions such as include(),require(), and fopen_with_path(). You can specify multiple directories by separating each with asemicolon, as shown in the following example:include_path=".:/usr/local/include/php;/home/php"By default, this parameter is set to the path defined by the environment variable PHP_INCLUDE_PATH.Note that on Windows, backward slashes are used in lieu of forward slashes, and the drive letterprefaces the path:include_path=".;C:\php\includes"doc_root = stringScope: PHP_INI_SYSTEM; Default value: NULLThis parameter determines the default from which all PHP scripts will be served. This parameter isused only if it is not empty.user_dir = stringScope: PHP_INI_SYSTEM; Default value: NULLThe user_dir directive specifies the absolute directory PHP uses when opening files using the/~username convention. For example, when user_dir is set to /home/users and a user attempts to openthe file ~/gilmore/collections/books.txt, PHP knows that the absolute path is/home/users/gilmore/collections/books.txt.extension_dir = stringScope: PHP_INI_SYSTEM; Default value: ./ (on Windows, the default is ext)The extension_dir directive tells PHP where its loadable extensions (modules) are located. Bydefault, this is set to ./, which means that the loadable extensions are located in the same directory as theexecuting script. In the Windows environment, if extension_dir is not set, it will default to C:\PHP-INSTALLATION-DIRECTORY\ext\.34