php man page for phpinfo

PHPINFO(3)								 1								PHPINFO(3)

phpinfo - Outputs information about PHP's configuration

SYNOPSIS
       bool phpinfo ([int  $what = INFO_ALL])

DESCRIPTION
	Outputs  a  large amount of information about the current state of PHP. This includes information about PHP compilation options and exten-
       sions, 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(3) is commonly used to check configuration settings and for available predefined vari-
       ables on a given system.

       phpinfo(3) is also a valuable debugging tool as it contains all EGPCS (Environment, GET, POST, Cookie, Server) data.

PARAMETERS
	      o $what
		- The output may be customized by passing one or more of the following constants bitwise values summed together  in  the  optional
		$what parameter. One can also combine the respective constants or bitwise values together with the or operator.

	      phpinfo(3) options

	      +-------------------+--------------------------------------+---+
	      | Name (constant)   |					 |   |
	      | 		  |					 |   |
	      | 		  |		   Value		 |   |
	      | 		  |					 |   |
	      | 		  |		Description		 |   |
	      | 		  |					 |   |
	      +-------------------+--------------------------------------+---+
	      |   INFO_GENERAL	  |					 |   |
	      | 		  |					 |   |
	      | 		  |		     1			 |   |
	      | 		  |					 |   |
	      | 		  |  The   configuration  line,  php.ini |   |
	      | 		  | location, build  date,  Web  Server, |   |
	      | 		  | System and more.			 |   |
	      | 		  |					 |   |
	      |   INFO_CREDITS	  |					 |   |
	      | 		  |					 |   |
	      | 		  |		     2			 |   |
	      | 		  |					 |   |
	      | 		  |  PHP   Credits.  See  also	phpcred- |   |
	      | 		  | its(3).				 |   |
	      | 		  |					 |   |
	      |INFO_CONFIGURATION |					 |   |
	      | 		  |					 |   |
	      | 		  |		     4			 |   |
	      | 		  |					 |   |
	      | 		  |  Current Local and Master values for |   |
	      | 		  | PHP directives. See also ini_get(3). |   |
	      | 		  |					 |   |
	      |   INFO_MODULES	  |					 |   |
	      | 		  |					 |   |
	      | 		  |		     8			 |   |
	      | 		  |					 |   |
	      | 		  |  Loaded modules and their respective |   |
	      | 		  | settings. See also get_loaded_exten- |   |
	      | 		  | sions(3).				 |   |
	      | 		  |					 |   |
	      | 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 license FAQ.			 |   |
	      | 		  |					 |   |
	      |     INFO_ALL	  |					 |   |
	      | 		  |					 |   |
	      | 		  |		     -1 		 |   |
	      | 		  |					 |   |
	      | 		  |	   Shows all of the above.	 |   |
	      | 		  |					 |   |
	      +-------------------+--------------------------------------+---+
RETURN VALUES
	Returns TRUE on success or FALSE on failure.

CHANGELOG
       +--------+---------------------------------------------------+
       |Version |						    |
       |	|						    |
       |	|		     Description		    |
       |	|						    |
       +--------+---------------------------------------------------+
       | 5.5.0	|						    |
       |	|						    |
       |	|  Logo  GUIDs were replaced with data URIs, and so |
       |	| turning off expose_php now has no effect  on	the |
       |	| result  of phpinfo(). Credits are also now embed- |
       |	| ded within the output itself instead of linked.   |
       |	|						    |
       | 5.2.2	|						    |
       |	|						    |
       |	|  The "Loaded Configuration File" information	was |
       |	| added,   when  before  only  "Configuration  File |
       |	| (php.ini) Path" existed.			    |
       |	|						    |
       +--------+---------------------------------------------------+
EXAMPLES
       Example #1

	      phpinfo(3) Example

	      <?php

	      // Show all information, defaults to INFO_ALL
	      phpinfo();

	      // Show just the module information.
	      // phpinfo(8) yields identical results.
	      phpinfo(INFO_MODULES);

	      ?>

NOTES
       Note

	       In versions of PHP before 5.5, parts of the information displayed are disabled when the expose_php configuration setting is set	to
	      off. This includes the PHP and Zend logos, and the credits.

       Note

	      phpinfo(3) outputs plain text instead of HTML when using the CLI mode.

SEE ALSO
       phpversion(3), phpcredits(3), php_logo_guid(3), ini_get(3), ini_set(3), get_loaded_extensions(3), Predefined Variables.

PHP Documentation Group 														PHPINFO(3)