How to re-index all subarray elements of a multidimensional array?

Question 1

The question is how to reset key e.g. for an array:

Array ( 
    [1_Name] => Array ( 
        [1] => leo 
        [4] => NULL 
    ) 
    [1_Phone] => Array ( 
        [1] => 12345 
        [4] => 434324
    )  
)

reset to :

Array ( 
    [1_Name] => Array ( 
        [0] => leo 
        [1] => NULL 
    ) 
    [1_Phone] => Array ( 
        [0] => 12345 
        [1] => 434324
    ) 
)

Question 2

To reset the keys of all arrays in an array:

$arr = array_map('array_values', $arr);

In case you just want to reset first-level array keys, use array_values() without array_map.

Question 3

I updated your function and it is giving expected output. Please give a try as following.

function array_key_exists_r($needle, $haystack){
    $result = array_key_exists($needle, $haystack);
    if ($result) 
    {
        foreach ($haystack as $a=>$v) 
        {
            if($needle == $a)
                return $haystack[$a];
            if (is_array($v)) {
                $result = array_key_exists_r($needle, $v);
            }
            if ($result) return $result;
        }
    }
    foreach ($haystack as $v) {
        if (is_array($v)) {
            $result = array_key_exists_r($needle, $v);
        }
        if ($result) return $result;
    }
    return $result;
};

Question 4

The actual problem is you're not assigning the result of array_reverse to anything

// change this
array_reverse($respArr);

// to this
$respArr = array_reverse($respArr);

Question 5

function a_iconv(array &$arr) {
  foreach ($arr as $key => $val) {
    if (is_array($val)) {
      a_iconv($arr[$key]);
    } else {
      unset($arr[$key]);
      $arr[iconv('UTF-8', 'ISO-8859-1//TRANSLIT//IGNORE', $key)] = iconv('UTF-8', 'ISO-8859-1//TRANSLIT//IGNORE', $val);
    }
  }
}

That function should do it.

function a_iconv(array $src) {
  $dst = array();
  foreach ($src as $key => $val) {
    if (is_array($val)) {
      $dst[iconv('UTF-8', 'ISO-8859-1//TRANSLIT//IGNORE', $key)] = a_iconv($val);
    } else {
      $dst[iconv('UTF-8', 'ISO-8859-1//TRANSLIT//IGNORE', $key)] = iconv('UTF-8', 'ISO-8859-1//TRANSLIT//IGNORE', $val);
    }
  }
  return $dst;
}

That one should do it without modifying the original array, returning the new version instead. Both functions recursively apply themselves on any array in your original array, applying iconv on any non array entry. I didn't checked for objects since I assume you don't have some in your array. Use get_object_vars() if that happens to be the case.

Question 6

function printAll($a) {
    if (!is_array($a)) {
        echo $a, ' ';
        return;
    }

    foreach($a as $k => $value) {
         if($k<10){
             printAll($k);
             printAll($value);
        }
    }
}

How to re-index all subarray elements of a multidimensional array?

Answers

php,multidimensional-array,reindex