## Basic usage

This simple example shows how to connect, execute a query, print resulting rows and disconnect from a PostgreSQL database.

示例 #1 PostgreSQL extension overview example

    <?php

    // Connecting, selecting database
    $dbconn = pg_connect("host=localhost dbname=publishing user=www password=foo")
        or die('Could not connect: ' . pg_last_error());

    // Performing SQL query
    $query = 'SELECT * FROM authors';
    $result = pg_query($dbconn, $query) or die('Query failed: ' . pg_last_error());

    // Printing results in HTML
    echo "<table>\n";
    while ($line = pg_fetch_array($result, null, PGSQL_ASSOC)) {
        echo "\t<tr>\n";
        foreach ($line as $col_value) {
            echo "\t\t<td>$col_value</td>\n";
        }
        echo "\t</tr>\n";
    }
    echo "</table>\n";

    // Free resultset
    pg_free_result($result);

    // Closing connection
    pg_close($dbconn);

    ?>

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