PHP Functions Essential Reference

Configuring the Filesystem Functions

The following configuration directives can be used to control the behavior of the Filesystem functions.

Directive Name	Value Type	Description
allow_url_fopen	boolean (on/off)	Allow the fopen() -type functions to work with URLs. For example, $fp = fopen ('http://www.example.com', 'r');
include_path	string	The paths to search when attempting to include or require a file. Certain other functions, like fopen(), may use these paths as well.
magic_quotes_runtime	boolean (on/off)	If this directive is enabled, data received from many functions that retrieve data from external sources (such as the database and program execution functions), will be automatically processed with the addslashes() function.
magic_quotes_sybase ...