LXXVIII. PHP Options&Information

Introduzione

This functions enable you to get a lot of information about PHP itself, e.g. runtime configuration, loaded extensions, version and much more. You'll also find functions to set options for your running PHP. The probably best known function of PHP - phpinfo() - can be found here.

Requisiti

Queste funzioni sono disponibili nei moduli standard, che sono sempre disponibili.

Istallazione

Non ` necessaria nessuna installazione per usare queste funzioni, esse fanno parte del core di PHP.

Configurazione Runtime

Questa estensione non definisce alcuna direttiva di configurazione

Resource Type

Questa estensione non definisce alcun tipo di risorsa.

Costanti Predefinite

Le costanti qui elencate sono sempre disponibili in quanto parte del core di PHP.

Tabella 1. Pre-defined phpcredits() constants

Constant	Description
CREDITS_ALL	All the credits, equivalent to using: CREDITS_DOCS + CREDITS_GENERAL + CREDITS_GROUP + CREDITS_MODULES + CREDITS_FULLPAGE. It generates a complete stand-alone HTML page with the appropriate tags.
CREDITS_DOCS	The credits for the documentation team
CREDITS_FULLPAGE	Usually used in combination with the other flags. Indicates that the a complete stand-alone HTML page needs to be printed including the information indicated by the other flags.
CREDITS_GENERAL	General credits: Language design and concept, PHP 4.0 authors and SAPI module.
CREDITS_GROUP	A list of the core developers
CREDITS_MODULES	A list of the extension modules for PHP, and their authors
CREDITS_SAPI	A list of the server API modules for PHP, and their authors

Tabella 2. phpinfo() constants

Constant	Value	Description
INFO_GENERAL	1	The configuration line, `php.ini` location, build date, Web Server, System and more.
INFO_CREDITS	2	PHP 4 Credits. See also phpcredits().
INFO_CONFIGURATION	4	Current Local and Master values for php directives. See also ini_get().
INFO_MODULES	8	Loaded modules and their respective settings.
INFO_ENVIRONMENT	16	Environment Variable information that's also available in `$_ENV`.
INFO_VARIABLES	32	Shows all predefined variables from EGPCS (Environment, GET, POST, Cookie, Server).
INFO_LICENSE	64	PHP License information. See also the .
INFO_ALL	-1	Shows all of the above. This is the default value.

Sommario
assert_options -- Set/get the various assert flags
assert -- Checks if assertion is FALSE
dl -- Loads a PHP extension at runtime
extension_loaded -- Find out whether an extension is loaded
get_cfg_var -- Gets the value of a PHP configuration option
get_current_user -- Gets 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
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 -- Gets the current active configuration setting of magic quotes gpc
get_magic_quotes_runtime -- Gets the current active configuration setting of magic_quotes_runtime
get_required_files -- Returns an array with the names of included or required files
getenv -- Gets the value of an environment variable
getlastmod -- Gets time of last page modification
getmygid -- Get PHP script owner's GID
getmyinode -- Gets the inode of the current script
getmypid -- Gets PHP's process ID
getmyuid -- Gets PHP script owner's UID
getrusage -- Gets the current resource usages
ini_alter -- Changes the value of a configuration option
ini_get_all -- Gets all configuration options
ini_get -- Gets the value of a configuration option
ini_restore -- Restores the value of a configuration option
ini_set -- Sets the value of a configuration option
php_logo_guid -- Gets 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
phpcredits -- Prints out the credits for PHP
phpinfo -- Outputs lots of PHP information
phpversion -- Gets the current PHP version
putenv -- Sets the value of an environment variable
set_magic_quotes_runtime -- Sets the current active configuration setting of magic_quotes_runtime
set_time_limit -- Limits the maximum execution time
version_compare -- Compares two "PHP-standardized" version number strings
zend_logo_guid -- Gets the zend guid
zend_version -- Gets the version of the current Zend engine


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