Web Application Development with PHP 4.0

Using Extensions

Depending on the build process you selected, you should either end up with a new PHP binary to be linked into your Web server (or run as CGI), or with an .so (shared object) file. If you compiled the example file first_module.c as a shared object, your result file should be first_module.so. To use it, you first have to copy it to a place from which it's accessible to PHP. For a simple test procedure, you can copy it to your htdocs directory and try it with the source in Listing 9.4. If you compiled it into the PHP binary, omit the call to dl(), as the module's functionality is instantly available to your scripts.

Caution

For security reasons, you should not put your dynamic modules into publicly accessible directories. Even ...