php delete element from array

Question

Im using cakephp 2.0 and i have data submitted that i want to cleanup, the array structure is below how do i delete the element (quoteitem) where the quantity=null?

i have this but it doesnt work;

foreach($this->request->data['Quoteitem'] as $qi) {
 if($qi['quantity']==null){
 echo 'quantity is null,delete this quote item from array';                 
 unset($qi);
}       
}

structure of array called ($this->request->data)

Array
(
    [Quote] => Array
        (
            [customer_id] => 72
            [user_id] => 104                
        )

    [Range] => Array
        (
            [id] => 
        )

    [Quoteitem] => Array
        (
            [0] => Array
                (
                    [product_id] => 
                    [unitcost] => 
                    [quantity] => 1
                )

            [1] => Array
                (
                    [product_id] => 
                    [unitcost] => 
                    [quantity] => 22
                )

            [2] => Array
                (
                    [product_id] => 339
                    [unitcost] => 5
                    [quantity] => 
                )     

        )

)

Another Code · Accepted Answer · 2012-03-31 07:43:05Z

5

You can remove it using the array keys:

foreach($this->request->data['Quoteitem'] as $key => $qi) {
   if($qi['quantity'] == null){
      echo 'quantity is null,delete this quote item from array';                 
      unset($this->request->data['Quoteitem'][$key]);
   }       
}

Note that this will create gaps in the array (nonexistent indexes), usually this won't be a problem but if it is you can re-index the array with array_values().

edited Mar 31, 2012 at 7:43

answered Mar 30, 2012 at 15:04

Another Code

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Comments

Nanne · Accepted Answer · 2012-03-30 15:05:04Z

1

Foreach makes a copy, try this:

foreach($this->request->data['Quoteitem'] as $key => $qi) {
   if($qi['quantity']==null){
      echo 'quantity is null,delete this quote item from array';                 
      unset($this->request->data['Quoteitem'][$key]);
   }       
}

answered Mar 30, 2012 at 15:05

Nanne

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