在PHP中使用pg_connect（）的错误500（致命错误）

Question

im trying to use pg_connect to access postgres on another server,,

i did opened the remote access and i can use bash to connect to my postgres server ! and i did host all all client_ip/32 trust in config but when im trying to use pg_connect i get error 500 ! pgsql is also installed and i've checked it with function_exists('pg_connect') and i returns true ! my code is :

$dbconn = pg_connect("host=remote_IP port=5432 dbname=myDB user=postgres") or die("Could not connect");

i've also tried this and get fatal error 500 again

    $dbconn = pg_connect("host=remote_IP port=5432 dbname=myDB
 user=another_super_user_i_made password=user_password") or die("Could not connect");

what is the problem ?

Answer 1

when you are able to connect to a server from one machine on your network, but get a connection timed out issue from another machine, it usually is due to one of a few things.

1) DNS. The machine you are testing from (the "remote access" as you call it) is able to resolve the DNS name and the webserver running your PHP code is not. You can use actual IP address instead of DNS names to test this.

2) Connectivity. Different machines are connected in different ways in a network. If you are able to get to an IP from the "remote access" machine but the web server is having trouble connecting to it (with "connection timed out"), try connecting directly to that web server (using "remote access" like SSH) and see if you can connect manually from there.

If it's not a network related issue it could be an issue with your default PG timeouts. Try setting them manually with the connect string. Specifically, the "connect_timeout" option, like this:

$d=pg_connect('host=example.com user=pgsql dbname=postgres connect_timeout=5');

Answer 2

There was host blocking issue ! my client hosting was not enabling remote access to DB ! you should check with your hosting that they can trace your problem