foreach max array value?

Question

I'm fairly new to php and i have problem with loops. I have a foreach loop,

foreach ($contents as $g => $f)
{
  p($f);
}

which gives some arrays, depending on how many contents i have. currently i have 2,

Array
(
    [quantity] => 1
    [discount] => 1
    [discount_id] => 0
    [id] => 1506
    [cat_id] => 160
    [price] => 89
    [title] => კაბა
)

Array
(
    [quantity] => 1
    [discount] => 1
    [discount_id] => 0
    [id] => 1561
    [cat_id] => 160
    [price] => 79
    [title] => ზედა
)

my goal is to save the array which has the max price in it as a different variable. I'm kinda stuck on how to do that, i managed to find the max price with the max() function like so

foreach ($contents as $g => $f)
{

    $priceprod[] = $f['price'];
    $maxprice = max($priceprod);
   p($maxprice);
}

but i still dont get how i'm supposed to find out in which array is the max price. any suggestions would be appreciated

jeroen · Accepted Answer · 2014-05-17 15:21:26Z

4

You should store the keys as well so that you can look it up after the loop:

$priceprod = array();

foreach ($contents as $g => $f)
{
  // use the key $g in the $priceprod array
  $priceprod[$g] = $f['price'];
}

// get the highest price
$maxprice = max($priceprod);

// find the key of the product with the highest price
$product_key = array_search($maxprice, $priceprod);

$product_with_highest_price = $contents[$product_key];

Note that the results will be unreliable if there are multiple products with the same price.

answered May 17, 2014 at 15:21

jeroen

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1 Comment

Guram Over a year ago

just what i needed, thanks a lot. will find a solution to same prices later probably. thanks

Balaji Kandasamy · Accepted Answer · 2014-05-18 03:03:35Z

1

Check max function for the array in outside the loop.

foreach ($contents as $g => $f)
{

    $priceprod[] = $f['price'];

}
$maxprice = max($priceprod);
p($maxprice);

edited May 18, 2014 at 3:03

answered May 17, 2014 at 15:12

Balaji Kandasamy

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2 Comments

Guram Over a year ago

I think I asked my question wrong, the goal is to save the array which has max price in it as a different variable for later use.

fat_mike Over a year ago

What is p() at p($maxprice)?

mleko · Accepted Answer · 2014-05-18 08:08:01Z

0

Here you got single loop solution handling multiple items with same max price.

$maxPrice = - INF;
$keys = [];
foreach($contents as $k=>$v){
    if($v['price']>$maxPrice){
        $maxPrice = $v['price'];
        $keys = [$k];
    }else if($v['price']==$maxPrice){
        $keys[] = $k;
    }
}

answered May 18, 2014 at 8:08

mleko

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