PHP compare two dimension array

Question

Hello guys I would like to know how to compare two two-dimension arrays value.

First array

Array 1
(
    [0] => Array
        (
            [0] => a
        )

    [1] => Array
        (
            [0] => b
        )

    [2] => Array
        (
            [0] => c
        )

}

Second one

Array 2
      (
            [0] => Array
                (
                    [0] => a
                )

        [1] => Array
            (
                [0] => d
            )

        [2] => Array
            (
                [0] => e
            )

    }

I need to make my loop to compare the arrays and check the matched value. In my case, array1[0][0]=a matches array2[0][0]=a. If it matches, php will output some html.

My foreach loop

foreach ($array1 as $arrays){
    foreach($arrays as $array){
      //need to compare array2 here not sure how to do it.
}

}

I would appreciate any helps. Thanks!

Answer 1

You can use array_diff_assoclike so

if(count(array_diff_assoc($array1,array2) != 0))
{
   //Arrays are not the same
}else{
  echo 'these following items are differing in throughout the arrays . ' . print_r(array_diff_assoc($array1,array2),true);
}

Hope this helps you.

Also take note of array_diff_assoc, it returns the array items that are found to be different to the other array including its index keys.

Answer 2

foreach($array1 as $k1 => $arrays) {
    foreach($arrays as $k2 => $val) {

      if($array2[$k1][$k2] == $val) {
          // $array1[$k1][$k2] is equal to $array2[$k1][$k2]
      }
}

The foreach($a as $k => $v) syntax does the same thing as foreach($a as $v), except that it also puts the key associated with the value into $k.