pg_num_rows
    (PHP 4 >= 4.2.0, PHP 5)
pg_num_rows -- Returns the number of rows in a result
Description
int 
pg_num_rows ( resource result )
   pg_num_rows() will return the number of rows in
   a PostgreSQL result resource.
  
Note: 
    This function used to be called pg_numrows().
   
Return Values
   The number of rows in the result. On error, -1 is returned.
  
Examples
   
Example 1. pg_num_rows() example 
<?php $result = pg_query($conn, "SELECT 1");
  $rows = pg_num_rows($result);
  echo $rows . " row(s) returned.\n"; ?>
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 The above example will output:  |