(PHP 4 >= 4.2.0, PHP 5)
pg_result_status — Get status of query result
pg_result_status() returns the status of a result resource, or the PostgreSQL command completion tag associated with the result
resultPostgreSQL query result resource, returned by pg_query(), pg_query_params() or pg_execute() (among others).
type
       Either PGSQL_STATUS_LONG to return the numeric status 
       of the result, or PGSQL_STATUS_STRING 
       to return the command tag of the result.
       If not specified, PGSQL_STATUS_LONG is the default.
      
   Possible return values are PGSQL_EMPTY_QUERY,
   PGSQL_COMMAND_OK, PGSQL_TUPLES_OK, PGSQL_COPY_OUT,
   PGSQL_COPY_IN, PGSQL_BAD_RESPONSE, PGSQL_NONFATAL_ERROR and
   PGSQL_FATAL_ERROR if PGSQL_STATUS_LONG is
   specified.  Otherwise, a string containing the PostgreSQL command tag is returned.
  
Example #1 pg_result_status() example
<?php
// Connect to the database
$conn = pg_pconnect("dbname=publisher");
// Execute a COPY
$result = pg_query($conn, "COPY authors FROM STDIN;");
// Get the result status
$status = pg_result_status($result);
// Determine status
if ($status == PGSQL_COPY_IN)
   echo "Copy began.";
else
   echo "Copy failed.";
 
?>
The above example will output:
Copy began.