PHP nginx mysql:致命错误:在第12行的/var/www-git/www1/api/credentials/mysql.php中调用未定义的函数mysql_connect()

I have installed mysql-server php5-mysql and nginx. When I execute a script (by webrequest) it outputs the error:

Fatal error: Call to undefined function mysql_connect() in /var/www-git/www1/api/credentials/mysql.php on line 12

This tells me that mysql api cannot be found, I guess. I have restarted nginx.

sudo service nginx restart

checked php.ini for any msql related settings(found none but this could maybe be the error) I also ran this(without really knowing why it initiates the dbs I guess so I do not think its important):

sudo mysql_install_db

I don’t know what to look for in phpinfo(), I checked but found nothing relevant.

Why can't PHP, in my current nginx setting, find mysql?

If you are using PHP-FPM:

sudo service php5-fpm restart

PHP ran in its own process. Nginx configuration has nothing to do.