How to compare the elements in 2D array in php

Question

Hi I am having an array like this...

array(
   array(
      1, 3
   ),
   array(
      4, 6, 8
   ),
   array(
      2, 3, 5, 1
   )
)

Now i want to compare first element with all the element in the second row.means I want to compare 1 with 4,6 and 8.Then with 3rd row elements like 1 with 2,3,5 and 1.Likewise i want to compare

1 is exist totally two times in the given array....So the variable count1=2....likewise 3 is exist 2 times so count2=2...8 is exist only one time so count8=1....like this...

Kindly help me to solve this.Thanks in advance.

What of the second element of the first row? And what should happen if you find an existing element in any of the other rows? — Ja͢ck, Apr 24 '14 at 05:56
If that element exist,I want to increase the count by 2...because that element exist for 2 times.... — SSS, Apr 24 '14 at 05:59

score 2 · Accepted Answer · answered Apr 24 '14 at 06:04

If you're just after a frequency table, you can flatten it with array_merge() and use array_count_values() to get a tally:

print_r(array_count_values(call_user_func_array('array_merge', $array)));

Output:

Array
(
    [1] => 2
    [3] => 2
    [4] => 1
    [6] => 1
    [8] => 1
    [2] => 1
    [5] => 1
)

score 0 · Answer 2 · edited May 23 '17 at 12:07

0

Check This answer

Or Example

function in_array_r($needle, $haystack, $strict = false) {
    foreach ($haystack as $item) {
        if (($strict ? $item === $needle : $item == $needle) || (is_array($item) && in_array_r($needle, $item, $strict))) {
            return true;
        }
    }

    return false;
}

Use

$b = array(array("Mac", "NT"), array("Irix", "Linux"));
echo in_array_r("Irix", $b) ? 'found' : 'not found';

edited May 23 '17 at 12:07

Community

1
1

answered Apr 24 '14 at 06:03

SagarPPanchal

9,839
6
34
62

How to achieve this in 2d array??? – SSS Apr 24 '14 at 06:04

How to compare the elements in 2D array in php

2 Answers2