Update api.php
Update api.php

Fix issue #21
Jenniferliu1272/smif_php,Jenniferliu1272/smif_php,Jenniferliu1272/smif_php,mvdriel/php-crud-api,mevdschee/mysql-crud-api,mevdschee/mysql-crud-api,Jenniferliu1272/smif_php,mevdschee/php-crud-api,mevdschee/php-crud-api,Jenniferliu1272/smif_php,mvdriel/php-crud-api