How to get top 3 Positions (Values) from array in PHP Including Duplicate

Question

I have a sorted array in descending order such as with values 100 , 98, 96, 90 .... and I am using foreach() loop to iterate over the array and use if condition with limit 3 such as `

foreach($array as $arr){
if(loop_counter<3)
{ 
 echo 'something'; 
}}

to get top 3 positions. but the problem is that if there exist two same values such as 100 , 98, 98, 96, 90 . . then limits should increase from 3 to 4 so that on position 2 there exist two values 98, 98 and position 3 contain value 90 instead of 2nd 98 remember that I need both duplicate number on one position such as two students with same marks stands against one position. thanks in advance

Ankur Mishra · Accepted Answer · 2020-02-25 06:22:08Z

1

Check the solution for this:

$array = [100, 98, 96, 96, 95];
$count = 0;
$length = count($array);
foreach($array as $key => $arr){
  if($count<3)
  { 
     echo $arr . ", ";
     if(($length != $key + 1) && $array[$key] != $array[$key + 1]) 
     {
        $count++;         
     }
  }
}

answered Feb 25, 2020 at 6:22

Ankur Mishra

1,2961 gold badge8 silver badges15 bronze badges

Sign up to request clarification or add additional context in comments.

6 Comments

Mahesh Over a year ago

it is not necessary that duplicate number are consecutive

Ankur Mishra Over a year ago

@mahesh in question you tell that you sort array in desc order. Then values are consecutive.

Ankur Mishra Over a year ago

Before loop you just need to sort array in desc order before loop statement.

Mani Over a year ago

@AnkurMishra array is sorted before loop in descending order.

Ankur Mishra Over a year ago

It is working fine. Open link and click on execute code to check output: sandbox.onlinephpfunctions.com/code/…

|

Mahesh · Accepted Answer · 2020-02-25 06:39:20Z

0

Have a look at this

   $len=3;
    $selectedArray=[]
    $i = 0;

    while($i <= $len) {
 array_push($selectedArray, $array[$i]);

    if(in_array($array[$i], $array))
    {$len++;
    }

        $i++;
    }

edited Feb 25, 2020 at 6:39

answered Feb 25, 2020 at 6:25

Mahesh

3714 silver badges11 bronze badges

Comments

Omari Victor Omosa · Accepted Answer · 2020-02-28 07:39:31Z

0

Also this, will work well

<?php

$array = array(100,98,98,98,96,96,90);
$arr_counter = 0;
$items = array();
foreach($array as $arr){


   $items[] = $arr; //capture all values in this cycle

   #get all values that are repeating then add it to a new array
   $nrr = array_unique(array_diff_assoc($items, array_unique($items)));

    #If the number is repeating again dont add to our counter $arr_counter
   if (!in_array($arr, $nrr)) {  $arr_counter = $arr_counter+1; }  

   echo $arr;  echo ' | position '; echo $arr_counter; echo '<br>';

   if  ($arr_counter == 3) { die(); }
} 


?>

Result: php sandbox

100 | position 1
98 | position 2
98 | position 2
98 | position 2
96 | position 3

edited Feb 28, 2020 at 7:39

answered Feb 28, 2020 at 7:14

Omari Victor Omosa

2,8794 gold badges27 silver badges51 bronze badges

Comments

Dmytro · Accepted Answer · 2020-12-22 09:13:29Z

0

I'm not sure this is what are you looking for, but you can use below code as example

    $a = [100, 100, 98, 97, 97, 97, 96];
   
    foreach(array_slice(array_count_values($a), 0, 3, true) as $number => $repeat) {
        var_dump(array_fill(0, $repeat, $number)); 
    }

Result

array(2) {
  [0]=>
  int(100)
  [1]=>
  int(100)
}
array(1) {
  [0]=>
  int(98)
}
array(3) {
  [0]=>
  int(97)
  [1]=>
  int(97)
  [2]=>
  int(97)
}

Live Sandbox

edited Dec 22, 2020 at 9:13

answered Feb 25, 2020 at 6:59

Dmytro

5829 silver badges31 bronze badges

Collectives™ on Stack Overflow

How to get top 3 Positions (Values) from array in PHP Including Duplicate

4 Answers 4

6 Comments

Comments

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

4 Answers 4

6 Comments

Comments

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related