extension_loaded

PHP 4, PHP 5, PHP 7, PHP 8
extension_loaded - Find out whether an extension is loaded
Manual
Code Examples

extension_loaded( string$extension ): bool

Finds out whether the extension is loaded.

Parameters

extension

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]

Return Values

Returns true if the extension identified by extension is loaded, false otherwise.

Related Functions

Example of extension_loaded

Show all examples for extension_loaded

PHP Version:


Function extension_loaded:

PHP Options and Information Functions

Most used PHP functions