Attention: PHP startup: Unable to load dynamic library openssl

When I tried to run composer install

or php artisan serve

, I am prompted with the following message

Warning: PHP startup: unable to load dynamic library '/usr/local/Cellar/php56/5.6.9/lib/php/extensions/no-debug-non-zts-20131226/php_openssl.dll' - dlopen (/ usr / local /Cellar/php56/5.6.9/lib/php/extensions/no-debug-non-zts-20131226/php_openssl.dll, 9): Image not found in Unknown on line 0

When I tried to access this file, I cannot find it. For the record, I installed PHP with homebrew. please help me find a solution