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mrthumbs

10-15-2005 02:13 PM

php wizards i have a question

Imagine i have and object with 50 values:

$my_obect->value_1
$my_obect->value_2
$my_obect->value_3
etc etc..

I want to add all values:
$total = $my_object->value_1 + $my_object->value_2 etc etc..

Is there a faster way to do it?

Replacing the number for a var ($my_object->value_$i or {$i} etc) in a while loop doesnt work as it would with normal vars..

Varius

10-15-2005 02:19 PM

I don't really use much OOP with PHP.....but if you used an array instead, you could just use the function array_sum()

mrthumbs

10-15-2005 02:24 PM

Quote:

Originally Posted by Varius

I don't really use much OOP with PHP.....but if you used an array instead, you could just use the function array_sum()

What i really need to check if value_1 is the highest value of the 50..

so value_1 > then v2,v3,v4,v5,v6 etc..

Thats why i need a way to loop through all these vars without having
50 lines of text..

I could move the data to an array and loop through there but i still need
to compare the vars individually..

Hmm.. i could load it into an array.. do a sort.. and see if the highest number
equals value_1 AND is unique in the array....

Varius

10-15-2005 02:30 PM

Quote:

Originally Posted by mrthumbs

To do it with a loop, you could do something like:

PHP Code:


		
			
$high_value = $array[0];

$high_key = 0;

foreach ($array as $key=>$value) {

    if ($value > $high_value) { 

        $high_value = $value;

        $high_key = $key;

    }

}

However since their are only 50 items, yes sort might be faster.

mrthumbs

10-15-2005 02:37 PM

Quote:

Originally Posted by Varius

To do it with a loop, you could do something like:

PHP Code:


		
			
$high_value = $array[0];

$high_key = 0;

foreach ($array as $key=>$value) {

    if ($value > $high_value) { 

        $high_value = $value;

        $high_key = $key;

    }

}

However since their are only 50 items, yes sort might be faster.

im going to try that yes.. im on it.. thankie!

nakki

10-15-2005 03:35 PM

Hey, this is how I'd do it:

Code:

/*

 * Gets the name of the member variable with the highest value

 *

 * Returns the name of the variable or false on failure

 */

function getHighestVariableName($obj) {

        if (!is_object($obj)) return false;

        

        // get all the variables of the class

        $values = get_object_vars($obj);

                

        $field = false;

        $highest = null;

        

        // loop through the variables, try to find the highest one

        foreach ($values as $key => $value) {

                if ($value > $highest) {

                        $highest = $value;

                        $field = $key;

                }

        }

        

        return $field;

}

Of course, this won't work if you only want to count certain member variables, not all of them. But I'm sure it could be modified to do that too. :]

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