PG_CANCEL_QUERY(3) PG_CANCEL_QUERY(3)
pg_cancel_query - Cancel an asynchronous query
SYNOPSIS
bool pg_cancel_query (resource $connection)
DESCRIPTION
pg_cancel_query(3) cancels an asynchronous query sent with pg_send_query(3), pg_send_query_params(3) or pg_send_execute(3). You cannot can-
cel a query executed using pg_query(3).
PARAMETERS
o $connection
- PostgreSQL database connection resource.
RETURN VALUES
Returns TRUE on success or FALSE on failure.
EXAMPLES
Example #1
pg_cancel_query(3) example
<?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
";
$rows1 = pg_num_rows($res1);
echo "$res1 has $rows1 records
";
// Cancel the currently running query. Will be the second query if it is
// still running.
pg_cancel_query($dbconn);
?>
The above example will output:
First call to pg_get_result(): Resource id #3
Resource id #3 has 3 records
SEE ALSO
pg_send_query(3), pg_connection_busy(3).
PHP Documentation Group PG_CANCEL_QUERY(3)
