PHP Search an Array for maximum key / value pairs

Question

I have a array list, How can I get with PHP the highest key value pair in an array?

   array:4 [
  0 => array:2 [
    "free_shipping" => true
    "coupon_amt" => 20
  ]
  1 => array:2 [
    "coupon_amt" => 120
    "free_shipping" => false
  ]
  2 => array:2 [
    "free_shipping" => false
    "coupon_amt" => 100
  ]
  3 => array:2 [
    "coupon_amt" => 200
    "free_shipping" => true
  ]
]

Any ideas or suggestions on how I can or should do this?

    array:4 [
  0 => array:2 [
    "free_shipping" => true
    "coupon_amt" => 200
  ]
]

Answer 1

A simple loop seems the best option to me.

$max = null;
foreach ($array as $part) {
    if ($max === null || $part['coupon_amt'] > $max['coupon_amt']) {
        $max = $part;
    }
}

Answer 2

Could you try this:

First Convert the array to collection

$collection = collect($array);

And then sort it

$sorted = $collection->sortByDesc('coupon_amt');

then if you want it to be array again just do this

$array = $sorted->toArray();

then just get the first array

$first = $array[0];

Hope it helps!

Answer 3

Use the collections' available methods such as max and where .

<?php

$collection = collect($array);

print_r($collection->where('coupon_amt',$collection->max('coupon_amt'))->all());

Answer 4

$collection = collect($array);

print_r($collection->where('coupon_amt',$collection->max('coupon_amt'))->all());