return values of specific array key

Question

I read some question and I didn't solve my problem I was use array_column() but I am confused of this silly problem

I have an array $product

$product = array(
    0 => array(
        'id' => '123',
        'name' => 'Facebook status robot',
        'description'=> 'Post your wall in your given time',
        'quantity' => '1',
        'unitPrice' => '120',
        'taxable' => 'true'
    ),
    1 => array(
        'id' => '123',
        'name' => 'Facebook status robot',
        'description'=> 'Post your wall in your given time',
        'quantity' => '1',
        'unitPrice' => '120',
        'taxable' => 'true'
    ),
    2 => array(
        'id' => '123',
        'name' => 'Facebook status robot',
        'description'=> 'Post your wall in your given time',
        'quantity' => '1',
        'unitPrice' => '120',
        'taxable' => 'true'
    )
);

Now I want remove two elements unitPrice and description

$customProduct = array(
    0 => array(
        'id' => '123',
        'name' => 'Facebook status robot',
        'quantity' => '1',
        'taxable' => 'true'
    ),
    1 => array(
        'id' => '123',
        'name' => 'Facebook status robot',
        'quantity' => '1',
        'taxable' => 'true'
    ),
    2 => array(
        'id' => '123',
        'name' => 'Facebook status robot',
        'quantity' => '1',
        'taxable' => 'true'
    )
);

Rangad · Accepted Answer · 2015-01-13T13:02:44.450

The PHP command you need is unset(array[key]), you can access individual indexes in your array by iterating over it.

The basic solution would look like the following. Please be aware that this would modify your original array. If that is not what you want assign the product array to another variable first (2nd example below):

foreach($product as &$data) {
    unset($data['unitPrice']);
    unset($data['description']);
}

var_dump($product);

would become:

$customProduct = $product;
foreach($customProduct as &$data) {
    unset($data['unitPrice']);
    unset($data['description']);
}

var_dump($customProduct);
// $product will have its original value.

score 3 · Answer 2 · answered Jan 13 '15 at 12:48

3

foreach($product as $key => $prod) {
    unset($product[$key]['unitPrice']);
    unset($product[$key]['description']);
}

answered Jan 13 '15 at 12:48

goldlife

1,949
3
29
48

1

You hit the nail on the head. – Henrik Jan 13 '15 at 13:19
thanks :). it's in my opinion the easiest way to solve imrans problem. – goldlife Jan 13 '15 at 13:25

deceze · Answer 3 · 2015-01-13T13:04:24.910

2

The functional approach, as counterbalance to all the other options:

$customProduct = array_map(function (array $product) {
    return array_diff_key($product, array_flip(['unitPrice', 'description']));
}, $product);

edited Jan 13 '15 at 13:04

answered Jan 13 '15 at 12:49

deceze

510,633
85
743
889

BTW, if you gotta use `unset`: it accepts multiple arguments... `unset($data['unitPrice'], $data['description'])`. Just slightly more compact code. – deceze Jan 13 '15 at 13:30

score 1 · Answer 4 · answered Jan 13 '15 at 12:53

1

$customProduct=array();
foreach($product as $p){
  if(isset($p['description'])){
      unset($p['description']);
  }
  if(isset($p['unitPrice'])){
      unset($p['unitPrice']);
  }
  array_push($customProduct,$p);
}

answered Jan 13 '15 at 12:53

Pushpendra Singh Thakur

64
3

2

You don't need to and shouldn't check with `isset` before `unset`, it's entirely superfluous. – deceze Jan 13 '15 at 12:58
@deceze I am thankful to you. Your comment forced me to re-read the PHP manual and I found something more interesting. It says - isset() does not return TRUE for array keys that correspond to a NULL value, while array_key_exists() does. Though it is not relevant here but helped me somewhere else. – Pushpendra Singh Thakur Jan 13 '15 at 13:13

score 1 · Answer 5 · answered Jan 13 '15 at 12:55

Try my updated answer

foreach($product as &$products) {
unset($products['unitPrice']);
unset($products['description']);
 }
print_r($product);

output

Array
(
[0] => Array
    (
        [id] => 123
        [name] => Facebook status robot
        [quantity] => 1
        [taxable] => true
    )

[1] => Array
    (
        [id] => 123
        [name] => Facebook status robot
        [quantity] => 1
        [taxable] => true
    )

[2] => Array
    (
        [id] => 123
        [name] => Facebook status robot
        [quantity] => 1
        [taxable] => true
    )

  )

actually i forgot to add & in $products – Priyank Jan 13 '15 at 12:56 — Priyank, Jan 13 '15 at 12:56

score 1 · Answer 6 · answered Jan 13 '15 at 13:00

Just run a loop .use the code below

<?php
$product = array(
        0 => array(
            'id' => '123',
            'name' => 'Facebook status robot',
            'description'=> 'Post your wall in your given time',
            'quantity' => '1',
            'unitPrice' => '120',
            'taxable' => 'true'
        ),
        1 => array(
            'id' => '123',
            'name' => 'Facebook status robot',
            'description'=> 'Post your wall in your given time',
            'quantity' => '1',
            'unitPrice' => '120',
            'taxable' => 'true'
        ),
        2 => array(
            'id' => '123',
            'name' => 'Facebook status robot',
            'description'=> 'Post your wall in your given time',
            'quantity' => '1',
            'unitPrice' => '120',
            'taxable' => 'true'
        )
    );
$p= count($product);

for($i=0;$i<=$p;$i++){
    unset($product[$i]["description"]);
 unset($product[$i]["unitPrice"]);
}
print_r($product);

Hope this helps you

return values of specific array key

6 Answers6