I am getting this error when I pass an invalid SQL string... I spent the last hour trying to find the problem assuming - It's not my SQL it must be the db handle... ANyway, I've now figured out that it was bad SQL...
What I want to do is test the result of the mysql_query() for a valid resultset.
I am simply using empty($result)... Is this the most effective test? Is there a more widely accepted method of testing a resultset for a valid result?
mysql_query
will return false
if there is an error
$result = mysql_query('select * from');
if ($result === false) {
// caused by my invalid input above
} else {
// process as usual
}
In fact, you're getting the error you describe because you're literally calling mysql_num_rows(false)
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