Mysql 与 PHP 的连接给出 500 错误

Question

I have a simple php file where I am opening my database connection.

$con = mysql_connect( 'localhost', 'root', '12345' );
if ( ! $con ) {
   die( 'Could not connect: ' . mysql_error() );
} else {
   echo 'Connection established';
}

But when running the file I am getting the following error:

localhost is currently unable to handle this request. HTTP ERROR 500

But if I just try phpinfo(); in the same file without having the above connection string it runs fine, which means my apache server is running already. I still tried by restarting but no luck!

$ sudo service apache2 restart

I also tried the same code using mysqli but that didn't work either!

$con = mysqli( 'localhost', 'root', '12345' );

I can connect mysql from my terminal using the same above credential:

$ mysql -u root p
$ password: 12345

mysql>

What I am missing?

Answer 1

use this

$con = mysqli_connect( 'localhost', 'root', '12345' );
if ( ! $con ) {
   die( 'Could not connect: ' . mysqli_error($con) );
} else {
   echo 'Connection established';
}