PHP multidimensional array remove elements by key [duplicate]

Question

I have a multidimensional Array which looks like this:

Array
(
[0] => Array
    (
        [id] => 1
        [name] => Edeka Blaschek
        [description] => Lebensmittelmarkt mit Frischfleischtheke und BÃ¤ckerei BÃ¼sch
        [latitude] => 51.1178
        [longitude] => 6.77537
        [distance] => 0.18105522823916723
    )

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

[2] => Array
    (
        [id] => 10
        [name] => Hallenbad Nievenheim
        [description] => Schwimmbad mit Sauna und SonnenbÃ¤nken, sowie kleinem AuÃŸenbereich
        [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 BÃ¤ckerei BÃ¼sch
        [latitude] => 51.1178
        [longitude] => 6.77537
    )

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

[2] => Array
    (
        [id] => 10
        [name] => Hallenbad Nievenheim
        [description] => Schwimmbad mit Sauna und SonnenbÃ¤nken, sowie kleinem AuÃŸenbereich
        [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.

I saw this already but the solutions didn't worked for me or I did something wrong.. — Marcel
– Marcel, Commented May 19, 2017 at 2:52
In your first snippet, you don't have a subarray with the key of 5, so that cannot work. In the second, you are not modifying $tempArray, but the element within a copy of the temp array which has the key 5 (which even if you had 5-keyed element, you would not be affecting the original $tempArray. — mickmackusa
– mickmackusa ♦, Commented Jul 29, 2021 at 10:19

LF-DevJourney · Accepted Answer · 2017-05-19 03:10:13Z

2

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

answered May 19, 2017 at 3:10

LF-DevJourney

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2 Comments

Marcel Over a year ago

Didn't worked for me, nothing has changed, the distance is already there :/

Marcel Over a year ago

Sorry, doesn't put the result in a new variable, now it works for me, thanks!

Chamina Sathsindu · Accepted Answer · 2017-05-19 04:55:02Z

1

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

Try this way. –

answered May 19, 2017 at 4:55

Chamina Sathsindu

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Comments

Chamina Sathsindu · Accepted Answer · 2017-05-19 02:51:05Z

-1

Use array_values() function in php.I suppose it will works.

answered May 19, 2017 at 2:51

Chamina Sathsindu

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2 Comments

Marcel Over a year ago

I looked here php.net/manual/de/function.array-values.php but it seems to me that this function only shows the values of an array and doesn't filter, can you give an example please?

Chamina Sathsindu Over a year ago

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

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