Re: Looking up, deleting and inserting array values

Jonas Rosling wrote:

Hi, I'm trying to do something that I know works when you build an array like a "map" with elements and values. One of the problems with this is that I only get out the values from the array from the last row. And the other problem is it looks like I can't delete desired values within the array. Is anyone able to tell me if it's really possible? And if it is, how? A snip of my code follows bellow: ($$row[3] contains single values that apear in the rows and are decleared higher up on the page)

    while($row=mysql_fetch_array($result)) {
            // If var based named as value in $row[3]
        if ($$row[3]) {

if (${$row[3]}) { // i.e. help php to figure out how to exactly what you mean // with curlie braces. // the for ease of viewing make a reference: $myArr =& ${$row[3]};

                // Splits keys and values
            foreach($$row[] AS $key => $value) {

foreach($myArr AS $key => $value) {

                            // If $value is the same as $row[2]
                if ($value == $row[2]) {
                                       // Sum old value within the array with the new value
                    $new_value = $value+$row[2];

                    // Delete the old value from the array
                    unset($$row[3][$key]);

unset($myArr[$key]); // unset(${$row[3]}[$key]);

                                    // Insert the new value
                    array_push($$row[3], $new_value);

$myArr[] = $newValue;

                                   }
                        }
                }
        }

Thanks in advance // Jonas (Yes, I try to read the manual - but it's not allways good enough for me)