Question

I get following Error:

Warning: mysql_fetch_array() expects parameter 1 to be resource, boolean given in……

Here is my Query:

$query = "SELECT ListNumber FROM residential"; 
$result1 = mysql_query($query); 
if (mysql_num_rows($result1) >10){ 
    $difference = mysql_num_rows($result1) - 10; 
    $myQuery = "SELECT * FROM `residential` ORDER BY `id` LIMIT 10,". $difference; 
    $result2 = mysql_query($myQuery); 
    while ($line = mysql_fetch_array($result2, MYSQL_BOTH))

Answer 1

Your query ($myQuery) is failing and therefore not producing a query resource, but instead producing FALSE.

To reveal what your dynamically generated query looks like and reveal the errors, try this:

$result2 = mysql_query($myQuery) or die($myQuery."<br/><br/>".mysql_error());

The error message will guide you to the solution, which from your comment below is related to using ORDER BY on a field that doesn’t exist in the table you’re SELECTing from.