need help with this

[devWhiz]

How would I go about doing this...

 

I want to have a few variables equaling either true or false... if true, it puts 'x' number into array

I dont know how to add more than one 'x' number into the array like this

 

$include_a = true;
$include_b = false;
$include_c = true;

 

if include_a is true, add 24 to the array, include_b is false so dont add 5 to the array, include_c is true so add 13

to the array...

 

$include_a = true; // if true, add 24 to the array
$include_b = false; // if true, add 5 to the array
$include_c = true; // if true, add 13 to the array

if($include_a == true || $include_b == true || $include_c == true)
{
$array = array(24, 5, 13);
}

 

now since include_b is false, it should only add 24 and 13 to the array.. do I use else if? or many if statements or what?

 

this is probably going to confuse everyone, its kind of hard to explain

[Pikachu2000]

Going strictly based on the description you've provided:

 

$array = array();
if( $include_a === TRUE ) {
     $array[] = 24;
}
if( include_b === TRUE ) {
     $array[] = 5;
}
if( include_c === TRUE ) {
     $array[] = 13;
}

 

If you explain the purpose behind all of this, a better solution may become apparent.

[monkeytooth]

that sounds like a lot of extra nonsense to me, no offence..

 

maybe giving your the variables the actual numbers you want in the array would be better.. then

 

$myNewArray = array();
if($include_a !== false){$myNewArray[]=24;}
if($include_b !== false){$myNewArray[]=5;}
if($include_c !== false){$myNewArray[]=13;}

echo "<pre>";
print_r();
echo "</pre>";

 

this way if the variable is anything other than false (true, in your case) it will add an item to the variable $myNewArray which at the begining is defined as an empty array.. doing $myNewArray[] appends to an array

[monkeytooth]

@Pikachu2000 I wasn't saying what you said was nonsence, figured I would clear that up now as I noticed you posted in the midst of me posting..

[Pikachu2000]

I kind of figured as much, since you posted essentially the same thing

[devWhiz]

basically.. I am reading an xml file that is as follows

 

<outer>
<xml>
	<establishments>
		<land>
			<id>24</id>
			<cost>920000000000</cost>
			<income>$100,000,000</income>
                                <name>NAME</name>
		</land>
		<land>
			<id>17</id>
			<cost>921000</cost>
			<income>$100</income>
                                <name>NAME</name>
		</land>
		<land>
			<id>3</id>
			<cost>2763000</cost>
			<income>$300</income>
                                <name>NAME</name>
		</land>
	</establishments>
</xml>
</outer>

 

I use simplexml to parse the xml file and put the objects in an array, well.. you see how there is an ID assigned for each <land> well what I want to do is use

 

$include_a = true;
$include_b = false;
$include_c = true;

 

if true it puts certain ids in an array, and then I will use if(in_array()) to check to see if the id is in the array, if it is, it skips the calculation, basically the script is just reading the xml file, dividing the income by the cost to get a certain ratio, well the script wont block out any ids if I dont set it to true or false on whether or not to include the id in the array, I know i could probably use if statements to check and see if the variables are true or false, if true it updates the array with the id and then I use in_array to search, if the id is in the array it will continue;

 

I know I could do this to make it easier on myself

 

if(!in_array($ID, $IDarray))
    {
    calculate ratios
    } continue;

[devWhiz]

im really exhausted, been working on moving to a new house, I will try to explain further in better detail if you guys dont get what I am saying, I can't think straight right now, yet I still insist of trying to add features to a script of mine, ;P

 

thank you guys for the responses as well, always appreciated

[WebStyles]

Gotta agree with the other guys, what you're doing sounds a bit weird...

 

from what I understand, $include_a is always the first element retrieved from the xml, and $include_b is always the second, and $include_c is always the third?

 

And then you manually list the wanted/unwanted id's and create a variable for each, in which you assign true of false?

 

I don't see much point to this. Too much stuff to do manually.

 

What would happen if you xml file retuned 20 different values? would you manually create a variable d, e, f, g... etc... for each?

 

I would load the entire XML into the array, and have a second array with only the numbers I want to process.... Like you said, in_array() can then solve the rest...

 

so try something like this: (assuming you have an array called $xmlFile with the loaded data)

 

$validIDS = array('24','5');

foreach($xmlFile as $k => $item){

    if(in_array($item['id'],$validIDS){

      //.. Calculate

    }else{

      // you can remove the unwanted ones from the array if necessary

      unset($item[$k]);

    }

}

 

this way, all you need to do is update the ids in $validIDS. it's still not a great way to do it, but I don't really understand what your selection logic is, how do you decide if you want ID number 24 or not?

 

hope this helps

[devWhiz]

ty guys again for the responses, I ended up just taking a shortcut, just thought it would be cool to use true, false etc as it seemed to look nicer but this way works as well, thanks