PHP多维数组按键删除元素

Question

I have a multidimensional Array which looks like this:

Array
(
[0] => Array
    (
        [id] => 1
        [name] => Edeka Blaschek
        [description] => Lebensmittelmarkt mit Frischfleischtheke und Bäckerei Büsch
        [latitude] => 51.1178
        [longitude] => 6.77537
        [distance] => 0.18105522823916723
    )

[1] => Array
    (
        [id] => 2
        [name] => Autohaus Kopenhagen
        [description] => Peugeot Händler
        [latitude] => 51.1161
        [longitude] => 6.77481
        [distance] => 0.33650698548914737
    )

[2] => Array
    (
        [id] => 10
        [name] => Hallenbad Nievenheim
        [description] => Schwimmbad mit Sauna und Sonnenbänken, sowie kleinem Außenbereich
        [latitude] => 51.1211
        [longitude] => 6.77857
        [distance] => 0.38752806088549746
    )
)

now I want to remove the distance key and value completely from all arrays in the array. It should look like this:

    Array
(
[0] => Array
    (
        [id] => 1
        [name] => Edeka Blaschek
        [description] => Lebensmittelmarkt mit Frischfleischtheke und Bäckerei Büsch
        [latitude] => 51.1178
        [longitude] => 6.77537
    )

[1] => Array
    (
        [id] => 2
        [name] => Autohaus Kopenhagen
        [description] => Peugeot Händler
        [latitude] => 51.1161
        [longitude] => 6.77481
    )

[2] => Array
    (
        [id] => 10
        [name] => Hallenbad Nievenheim
        [description] => Schwimmbad mit Sauna und Sonnenbänken, sowie kleinem Außenbereich
        [latitude] => 51.1211
        [longitude] => 6.77857
    )
)

I've tried the solutions mentioned here: PHP - unset in a multidimensional array but they didn't worked for me, what I'm doing wrong here? Could be very simple sorry but I'm new in PHP.

EDIT: This is the code I tried:

foreach(array_keys($tempArray) as $key) {
   unset($tempArray[$key][5]);
}

And this:

foreach($tempArray as $key=>$val){
   unset($val[5]); 
}

$tempArray is the array that I want to change.

Answer 1

try this,

array_map(function($v){array_pop($v); return $v;}, $array);

Note , array_pop pop the last element of array. if the distance is not the last key, you can use unset() instead

Answer 2

   foreach ($mainArray as $key => $mainData){
    foreach ($subArray as $subData){ 
       if($mainData['distance'] == $subData['distance']){
        unset($mainArray[$key]); break; 
  }
   } 
     }

Try this way. –

Answer 3

我想在php中使用array_values（）函数。