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POtrying to understand postgresql via php database connection sharing
 

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    <p>To say I am new to PostgreSQL is an understatement. As such I have spent a great deal of time in the last couple of days going over the various manuals at <a href="http://www.php.net/manual/en/ref.pgsql.php" rel="nofollow">http://www.php.net/manual/en/ref.pgsql.php</a> and at <a href="http://www.postgresql.org/docs/9.1/interactive/index.html" rel="nofollow">http://www.postgresql.org/docs/9.1/interactive/index.html</a> .</p> <p>Short form of my question:</p> <p>Do different users (logged in from separate IP addresses) utilize the same connection to a PostgreSQL data base behind the scenes?</p> <p>Long form of the question:</p> <p>In a given php script the database connection <code>$connection</code> is defined near the very beginning of script. That connection is then used throughout the rest of the script via <code>$GLOBALS['connection']</code>. Thus in that script a given user simply reuses the same connection over and over again.</p> <p>A second user using the same script while logging in from a different location also uses a single copy of the connection.</p> <p>From the manual (at <a href="http://www.php.net/manual/en/function.pg-connect.php" rel="nofollow">http://www.php.net/manual/en/function.pg-connect.php</a>):</p> <p><code>If a second call is made to pg_connect() with the same connection_string as an existing connection, the existing connection will be returned unless you pass PGSQL_CONNECT_FORCE_NEW as connect_type.</code></p> <p>So, does this mean that both users are sharing the same connection (unless the <code>PGSQL_CONNECT_FORCE_NEW</code> flag is sent)?</p>
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