pg_affected_rows() returns the number of tuples (instances/records/rows) affected by INSERT, UPDATE, and DELETE queries executed by pg_query(). If no tuple is affected by this function, it will return 0.

Example 1. pg_affected_rows() example

 <?php
     $result = pg_query($conn, "INSERT INTO authors VALUES ('Orwell', 2002, 'Animal Farm')");
     $cmdtuples = pg_affected_rows($result);
     echo $cmdtuples . " tuples are affected.\n";
?>

Note: This function used to be called pg_cmdtuples().

See also pg_query() and pg_num_rows().

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