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<chapter xml:id="pgsql.examples" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
 &reftitle.examples;
 <section xml:id="pgsql.examples-basic">
  <title>Basic usage</title>
  <para>
   This simple example shows how to connect, execute a query, print
   resulting rows and disconnect from a PostgreSQL database.
   <example>
    <title>PostgreSQL extension overview example</title>
    <programlisting role="php">
<![CDATA[
<?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';
$result = pg_query($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);
?>
]]>
    </programlisting>
   </example>
  </para>
 </section>
</chapter>

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