Question

I have a while loop like below. I want to sum all of the fields from the database, but ignore a set few. These are called id, summary and diff.

I have setup what I think I need below, but do not know how to compare the current key to these field names correctly.

$sql = 'SELECT * FROM table';
$result = mysql_query($sql)
while ($row = mysql_fetch_array($result)){
//DOES KEY = an ignore field name?

//If No 
$i++
}

Answer 1

$ignoreTheseColumns = array("id", "summary", "diff");
$sum = 0;
$sql = 'SELECT * FROM table';
$result = mysql_query($sql)
while ($row = mysql_fetch_array($result)){
    foreach($row as $key=>$value)
    {
        //DOES KEY = an ignore field name?
        if(!in_array($key, $ignoreTheseColumns))
        {
            $sum+= $value
        }
}