extension_loaded

(PHP 4, PHP 5, PHP 7)
Find out whether an extension is loaded
bool extension_loaded ( string $name )

Finds out whether the extension is loaded.

Parameters:
name

The extension name. This parameter is case-insensitive.

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]
Returns:

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

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

See also:

get_loaded_extensions() -

get_extension_funcs() -

phpinfo() -

dl() -

function_exists() -

doc_php
2016-02-24 15:53:56
Comments
Leave a Comment

Please login to continue.