how to enbale php_sockets.dll?

hi All.
Me Need help for active and run php_sockets.dll in php.ini

Code:

php -q socket.php
PHP Waing: PHP Startup: Unable to load dynamic library '/usr/local/lib/php/extensions/no-debug-non-zts-20131226/php_sockets.dll' - /usr/local/lib/php/extensions/no-debug-non-zts-20131226/php_sockets.dll: invalid ELF header in Unknown on line 0
Could not open input file: socket.php

Hello,

*.dll extensions are windows-based and you can not use them on a Linux server.

And by the way sockets are enabled by default in PHP if you installed it by Directadmin's CustomBuild script. Check a phpinfo() output for this.

sockets

Sockets Support

enabled