删除多维数组中的键

Question

I want to delete key [Price] but the function which I use for deletion doesn't work for this case

I have:

Array(
       [Values] => 1
       [Product] => Array( 
                           [Details] => Array( 
                                              [ID] => 1
                                              [Price] => Array(
                                                              )
                                             )
                         )
    )

My goal is:

Array(
       [Values] => 1
       [Product] => Array( 
                           [Details] => Array( 
                                              [ID] => 1
                                             )
                         )
    )

I use this for removal:

function remove_key($array, $key)
        {
            foreach($array as $k => $v) {

                if(is_array($v)) {
                    $array[$k] = remove_key($v, $key);
                } elseif($k == $key) {
                    unset($array[$k]);
                }
            }
            return $array;
        }

$array = remove_key($array,'Price');

What is wrong here?

Answer 1

<?php
$array = Array(
    'Values' => 1,
 'Product' => Array(
    'Details' => Array(
        'id' => 1,
        'Price' => Array(
)
      )
   )
);



unset($array['Product']['Details']['Price']);
echo "<pre>";
print_r($array);
echo "</pre>";

And the output is :

Array
(
    [Values] => 1
    [Product] => Array
        (
            [Details] => Array
                (
                    [id] => 1
                )

        )

)

Answer 2

so if you want to fix your function you must add another condition into first if as so && $k != $key because you are not getting into elseif and unset is not called

  function remove_key($array, $key)
        {
            foreach($array as $k => $v) {
                if(is_array($v) && $k != $key) {
                    $array[$k] = remove_key($v, $key);
                } elseif($k == $key) {
                    unset($array[$k]);
                }
            }
            return $array;
        }