PHP Check for NULL

Question

Here is the below Code:

$query = mysql_query(\"SELECT * FROM tablex\");

if ($result = mysql_fetch_array($query)){

    if ($result[\'column\'] == NULL) { pr         


        

Answer 1

Sometimes, when I know that I am working with numbers, I use this logic (if result is not greater than zero):

if (!$result['column']>0){

}

Answer 2

I think you want to use

mysql_fetch_assoc($query)

rather than

mysql_fetch_row($query)

The latter returns an normal array index by integers, whereas the former returns an associative array, index by the field names.

Answer 3

Use is_null or === operator.

is_null($result['column'])

$result['column'] === NULL

Answer 4

Make sure that the value of the column is really NULL and not an empty string or 0.

Answer 5

How about using

if (empty($result['column']))