Count duplicate values in multidimensional array

Question

I need to count the same values in multidimensional array and remove the duplicates.

My array:

$r = [
    ['a','b'],
    ['a','b'],
    ['c','d'],
    ['c','d'],
    ['c','d'],
    ['e','f'],
];

Need to output:

[0] => Array
    (
        [0] => a
        [1] => b
        [1] => 2 // Result
    )

[1] => Array
    (
        [0] => c
        [1] => d
        [1] => 3 // Result
    )

[2] => Array
    (
        [0] => e
        [1] => f
        [1] => 1 // Result
    )

I will be very grateful for your help.

"What" have you tried, exactly? Share the code you've got so far, even if it doesn't work. — Qirel
– Qirel, Commented Dec 25, 2016 at 11:56

LF-DevJourney · Accepted Answer · 2016-12-25 12:38:31Z

2

<?php
$r = [
    ['a','b'],
    ['a','b'],
    ['c','d'],
    ['c','d'],
    ['c','d'],
    ['e','f'],
];
foreach($r as $arr)
{
  $o[implode(',', $arr)][] = 1;
}
$output = [];
array_walk($o, function($v, $k) use(&$output){
    $output[] = array_merge(explode(',', $k), [count($v)]);
});
var_dump($output);

and the output:

array(3) {
  [0]=>
  array(3) {
    [0]=>
    string(1) "a"
    [1]=>
    string(1) "b"
    [2]=>
    int(2)
  }
  [1]=>
  array(3) {
    [0]=>
    string(1) "c"
    [1]=>
    string(1) "d"
    [2]=>
    int(3)
  }
  [2]=>
  array(3) {
    [0]=>
    string(1) "e"
    [1]=>
    string(1) "f"
    [2]=>
    int(1)
  }
}

answered Dec 25, 2016 at 12:38

LF-DevJourney

28.7k30 gold badges170 silver badges321 bronze badges

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

Comments

Muhammad Fatoni · Accepted Answer · 2016-12-25 13:07:26Z

0

foreach ( $result1 as $key ):
    $o[implode(', ', $key)][] = null;
     foreach ($o as $key1) {
        $g[implode(', ', $key)] = count($key1);
    }
endforeach;
print_r($g);

answered Dec 25, 2016 at 13:07

Muhammad Fatoni

136 bronze badges

Collectives™ on Stack Overflow

Count duplicate values in multidimensional array

2 Answers 2

Comments

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related