How to remove elements from PHP array?

Question

How do I remove elements from an array of objects? I already know the name of the keys to be removed (in the example below: type).

For example, this is the array I have:

  {
    "color": "purple",
    "type": "minivan",
  },
  {
    "color": "red",
    "type": "station wagon",
  }

And this is the array I would like to get:

  {
    "color": "purple",
  },
  {
    "color": "red",
  }

You can loop through the array and use ```unset($obj->type)```, see https://www.php.net/manual/en/function.unset.php — Jordy, Apr 08 '22 at 11:42
Does this answer your question? [PHP: How to remove specific element from an array?](https://stackoverflow.com/questions/2448964/php-how-to-remove-specific-element-from-an-array) — nicael, Apr 08 '22 at 11:53

score 0 · Answer 1 · answered Apr 08 '22 at 12:23

0

Use: unset($array['key'])

here $array is your array and the key is type in your scenario

answered Apr 08 '22 at 12:23

Abbas Vaghela

84
3

score 0 · Answer 2 · answered Apr 08 '22 at 12:46

Like @Jordy suggested you can use unset().

If you wish to remove all the 'type' from each object, you can use a foreach loop:

$cars = array (
  array("name"=>"Volvo","color"=>"purple", "type"=>"minivan"),
  array("name"=>"BMW","color"=>"red", "type"=>"station wagon")
);
    
function printCars($cars){
    foreach($cars as $key => $val){
        foreach( $val as $keyItem => $valKey){
            echo $keyItem ." : ".$valKey."</br>";
        }
    }
}

prints

 name: Volvo 
 color : purple 
 type : minivan 
 name : BMW 
 color : red
 type : station wagon

Then to remove your 'type' key:

foreach($cars as $key => $val){
    foreach( $val as $keyItem => $valKey){
        if($keyItem = "type"){        
            unset($cars[$key][$keyItem]);
        }
    }
}
printCars($cars);

prints

 name: Volvo 
 color : purple 
 name : BMW 
 color : red

How to remove elements from PHP array?

2 Answers2