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  1. <?php
  2.  
  3. // your code goes here
  4.  
  5. $array = array (
  6.     '1' => Array (
  7.         'message_id' => '1',
  8.         'points' => '3',
  9.     ),
  10.     '2' => Array(
  11.         'message_id' => '2',
  12.         'points' => '2',
  13.     ),
  14.     '3' => Array(
  15.         'message_id' => '3',
  16.         'points' => '2',
  17.     )
  18. );
  19.  
  20.  
  21.     $points = 0;
  22.     foreach($array as $val) {
  23.         if($val['points'] > $points) {
  24.             $points = $val['points'];
  25.             $message_id = $val['message_id'];
  26.         }
  27.     }
  28.  
  29. echo $message_id;
  30. //prints 1
Success #stdin #stdout 0s 52488KB
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1
https://ideone.com/CS0QSt
language:
PHP (php 7.3.5)
created:
7 years ago
visibility:
public

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