Example 1. pg_cancel_query() example
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<?php$dbconn = pg_connect("dbname=publisher") or die("Could not connect");
 
 if (!pg_connection_busy($dbconn)) {
 pg_send_query($dbconn, "select * from authors; select count(*) from authors;");
 }
 
 $res1 = pg_get_result($dbconn);
 echo "First call to pg_get_result(): $res1\n";
 $rows1 = pg_num_rows($res1);
 echo "$res1 has $rows1 records\n\n";
 
 // Cancel the currently running query.  Will be the second query if it is
 // still running.
 pg_cancel_query($dbconn);
 ?>
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The above example will output:
| First call to pg_get_result(): Resource id #3
Resource id #3 has 3 records |