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# LXXVI. PHP options & information

Table of Contents
assert -- Checks if assertion is `FALSE`
assert_options -- Set/get the various assert flags
extension_loaded -- find out whether an extension is loaded
dl -- load a PHP extension at runtime
getenv -- Get the value of an environment variable
get_cfg_var -- Get the value of a PHP configuration option.
get_current_user -- Get the name of the owner of the current PHP script.
get_defined_constants -- Returns an associative array with the names of all the constants and their values.
get_extension_funcs -- Returns an array with the names of the functions of a module
getmygid -- Get PHP script owner's GID
get_included_files -- Returns an array with the names of included or required files
get_loaded_extensions -- Returns an array with the names of all modules compiled and loaded
get_magic_quotes_gpc -- Get the current active configuration setting of magic quotes gpc.
get_magic_quotes_runtime -- Get the current active configuration setting of magic_quotes_runtime.
getlastmod -- Get time of last page modification.
getmyinode -- Get the inode of the current script.
getmypid -- Get PHP's process ID.
getmyuid -- Get PHP script owner's UID.
get_required_files -- Returns an array with the names of included or required files
getrusage -- Get the current resource usages.
ini_alter -- Change the value of a configuration option
ini_get -- Get the value of a configuration option
ini_get_all -- Get all configuration options
ini_restore -- Restore the value of a configuration option
ini_set -- Set the value of a configuration option
phpcredits -- Prints out the credits for PHP.
phpinfo -- Output lots of PHP information.
phpversion -- Get the current PHP version.
php_logo_guid -- Get the logo guid
php_sapi_name -- Returns the type of interface between web server and PHP
php_uname -- Returns information about the operating system PHP was built on
putenv -- Set the value of an environment variable.
set_magic_quotes_runtime -- Set the current active configuration setting of magic_quotes_runtime.
set_time_limit -- limit the maximum execution time
version_compare -- Compares two "PHP-standardized" version number strings
zend_logo_guid -- Get the zend guid
zend_version -- Get the version of the current Zend engine.

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