Please post a short reproducing script. (short is under 10 lines)

Here is an example of a script that returned the error in 4.05, and works in 4.04.

elseif ($delete) {

	// delete a record

    $sql = "DELETE FROM models WHERE model_id=$model_id";	

    $result = mysql_query($sql);

    echo "$sql Record deleted!<p>";

This script shows no isset(), please be a little more descriptive.

Derick

This function did not work in PHP4.05:
elseif ($delete) {

	// delete a record

    $sql = "DELETE FROM models WHERE model_id=$model_id";	

    $result = mysql_query($sql);

    echo "$sql Record deleted!<p>";
}

Unless I added isset() like so:

elseif (isset($delete)) {}

But as I added that in other functions that returned a value from mySQL, every value returned would be "1" or TRUE.

Not bug. Check your setting in php.ini