Php/docs/function.pg-cancel-query
pg_cancel_query
(PHP 4 >= 4.2.0, PHP 5, PHP 7)
pg_cancel_query — Cancel an asynchronous query
Description
pg_cancel_query
( resource $connection
) : bool
pg_cancel_query() cancels an asynchronous query sent with pg_send_query(), pg_send_query_params() or pg_send_execute(). You cannot cancel a query executed using pg_query().
Parameters
connection- PostgreSQL database connection resource.
Return Values
Returns TRUE on success or FALSE on failure.
Examples
Example #1 pg_cancel_query() 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\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);?>
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() - Sends asynchronous query
- pg_connection_busy() - Get connection is busy or not
