extension_loaded
(PHP 4, PHP 5, PHP 7)
extension_loaded — Find out whether an extension is loaded
Description
$name
) : boolFinds 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]
Examples
Example #1 extension_loaded() example
<?php
if (!extension_loaded('gd')) {
if (!dl('gd.so')) {
exit;
}
}
?>
See Also
- get_loaded_extensions() - Returns an array with the names of all modules compiled and loaded
- get_extension_funcs() - Returns an array with the names of the functions of a module
- phpinfo() - Outputs information about PHP's configuration
- dl() - Loads a PHP extension at runtime
- function_exists() - Return TRUE if the given function has been defined
English translation
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Document created the 30/01/2003, last modified the 26/10/2018
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References
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