Installing PHPLIB onto a web server that has PHP as a module (actually Apache) mainly differs in where you can set up runtime settings for PHP itself. PHP can be compiled with a wealth of parameters (see the PHP section in phpinfo()), most of which can get overridden by the php3.ini file. The location of this file is shows as part of the output of phpinfo().

Example: If below we talk about setting in your php3.ini the configuration

    include_path = "/bla"

mod_php users may alternatively configure in their httpd.conf the following:

    ;;;;;;;;;;;;;;;;;
    ; Data Handling ;
    ;;;;;;;;;;;;;;;;;
    magic_quotes_gpc = Off    ; magic quotes for incoming GET/POST/Cookie data
    magic_quotes_runtime = Off; magic quotes for runtime-generated data,
                              ; e.g. data from SQL, from exec(), etc.
                              
    magic_quotes_sybase = Off ; Use Sybase-style magic quotes
                              ; (escape ' with '' instead of \')
    track_vars = On           ; enable $PHP_GET_VARS[], $PHP_POST_VARS[]
                              ; and $PHP_COOKIE_VARS[] arrays

    ; automatically add files before or after any PHP 3.0 document
    auto_prepend_file = (add path to prepend.php3 here)
    auto_append_file  =

    ;;;;;;;;;;;;;;;;;;;;;;;;;
    ; Paths and Directories ;
    ;;;;;;;;;;;;;;;;;;;;;;;;;
    include_path      = (add path to the directory with all .inc files)

All of this comes very handy when you have multiple virtual hosts (e.g. you are an ISP). In this case you can comfortably place the php3 directives in the <VirtualHost> block or in an .htaccess file in the client directory.