phpinfo
phpinfo
(PHP 4, PHP 5, PHP 7)
phpinfo — Outputs information about PHP's configuration
Description
bool phpinfo ([ int $what = INFO_ALL ] )
Outputs a large amount of information about the current state of PHP. This includes information about PHP compilation options and extensions, the PHP version, server information and environment (if compiled as a module), the PHP environment, OS version information, paths, master and local values of configuration options, HTTP headers, and the PHP License.
Because every system is setup differently, phpinfo() is commonly used