How to remove elements from PHP array?-CodePudding

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",
  }

CodePudding user response：

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

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

CodePudding user response：

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