php wizards i have a question - GoFuckYourself.com

mrthumbs · 10-15-2005, 02:13 PM

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

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....

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. :]

10-15-2005, 02:13 PM	#1
mrthumbs salad tossing sig guy Join Date: Apr 2002 Location: mrthumbs*gmail.com Posts: 11,702	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..

10-15-2005, 02:19 PM	#2
Varius Confirmed User Industry Role: Join Date: Jun 2004 Location: New York, NY Posts: 6,890	I don't really use much OOP with PHP.....but if you used an array instead, you could just use the function array_sum() __________________ Skype variuscr - Email varius AT gmail