Developer Forums | About Us | Site Map
Search  
HOME > PHPMANUAL


Sponsors





Web Host
site hosted by netplex
Partners

Online Manuals

extension_loaded

(PHP 3>= 3.0.10, PHP 4 )

extension_loaded -- Find out whether an extension is loaded

Description

bool extension_loaded ( string name)

Returns TRUE if the extension identified by name is loaded, FALSE otherwise.

Example 1. extension_loaded() example

<?php
if (!extension_loaded('gd')) {
    if (!dl('gd.so')) {
        exit;
    }
}
 ?>

You can see the names of various extensions by using phpinfo() or if you're using the CGI or CLI version of PHP you can use the -m switch to list all available extensions:
$ php -m
[PHP Modules]
xml
tokenizer
standard
sockets
session
posix
pcre
overload
mysql
mbstring
ctype

 [Zend Modules]

Note: extension_loaded() uses the internal extension name to test whether a certain extension is available or not. Most internal extension names are written in lower case but there may be extension available which also use uppercase letters. Be warned that this function compares case sensitive !

See also get_loaded_extensions(), get_extension_funcs(), phpinfo(), and dl().

Copyright 2004-2017 GrindingGears.com. All rights reserved. Site hosted by NETPLEX