pg_cancel_query
    (PHP 4 >= 4.2.0, PHP 5)
pg_cancel_query -- 
   Cancel an asynchronous 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); ?>
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 The above example will output: First call to pg_get_result(): Resource id #3
Resource id #3 has 3 records  |  
  |