Using PHP you want to connect to a specific database to run SQL queries. How do you do this?
Assuming you have installed PHP and Postgres on the same Ubuntu Linux server, install the php-pgsql package. Follow this link if you need assistance.
1. Create a file like this named contint.php:
$host = "host=127.0.0.1";
$port = "port=5432";
$dbname = "dbname=contintdb";
$credentials = 'user=jdoe password=abcd1234';
$db = pg_connect( "$host $port $dbname $credentials" );
pg_query("insert into contintTable values(511);");
2. Change the $dbname variable assignment in the code below. This is how you specify a database. You will need to change the credentials and the pg_query code too. Change the IP address if the Postgres server is on a different server from the server with PHP.
3. Run it with this command: php contint.php