PHP- Filter an Array of Associative Array [duplicate]

Question

All. I am sure that someone may have asked similar thing but I failed to find the related thread. I have the following array of associative array

May I know how I can extract an array of data with only [type] => Beverage ?

Array ( 
    [0] => Array ( 
        [id] => 1 
        [prod_name] => Coffee 
        [type] => Beverage 
    ) 
    [1] => Array ( 
        [id] => 2 
        [prod_name] => Vegetable 
        [type] => Food 
    )
    [2] => Array ( 
        [id] => 3 
        [prod_name] => Orange Juice 
        [type] => Beverage 
    )
)

I have looked at the function array filter but still cannot figure the answer out. Thanks.

Jacob Mulquin · Accepted Answer · 2022-11-30 04:57:10Z

1

You can do this easily with array_filter:

$data = [
    ['id' => 1, 'prod_name' => 'Coffee', 'type' => 'Beverage'],
    ['id' => 2, 'prod_name' => 'Vegetables', 'type' => 'Food'],
    ['id' => 3, 'prod_name' => 'Orange Juice', 'type' => 'Beverage'],
];

$output = array_filter($data, function ($record) {
    if ($record['type'] == 'Beverage')
        return $record;
});

var_dump($output);

Yields:

array(2) {
  [0]=>
  array(3) {
    ["id"]=>
    int(1)
    ["prod_name"]=>
    string(6) "Coffee"
    ["type"]=>
    string(8) "Beverage"
  }
  [2]=>
  array(3) {
    ["id"]=>
    int(3)
    ["prod_name"]=>
    string(12) "Orange Juice"
    ["type"]=>
    string(8) "Beverage"
  }
}

answered Nov 30, 2022 at 4:57

Jacob Mulquin

3,6081 gold badge22 silver badges24 bronze badges

Sign up to request clarification or add additional context in comments.

3 Comments

Markus AO Over a year ago

Just return $record['type'] == 'Beverage' would do. "If the callback function returns true, thecurrent value from array is returned into the result array." The modern short version for a one-op filter would be, $output = array_filter($data, fn($record) => $record['type'] == 'Beverage');.

Jacob Mulquin Over a year ago

Indeed it could be more terse, I think the more verbose syntax is good for somebody learning to understand.

Markus AO Over a year ago

That it is, just dropped in the option. Still, on the return value, array_filter only cares about a boolean. A strict comparison of $record['type'] === 'Beverage' is true. Any string value is "truish" and will simply be coerced to true. No need for that.

Collectives™ on Stack Overflow

PHP- Filter an Array of Associative Array [duplicate]

1 Answer 1

3 Comments

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

3 Comments

Linked

Related