CODEWITHSUNDEEP
phparrays
Garfield
Garfield

Reputation: 2537

Get specific key values as an array from array of object

This is my code:

$a = array(
    array("a" => 1, "b" => 2),
    array("x" => 2, "a" => 2),
    array("d" => 100, "a" => 3, "b" => 2, "c" => 3)
);
$myArray = array();
foreach ($a as $arr) {
    $myArray[] = $arr['a'];
}
print_r($myArray);

So, I get

Array
(
    [0] => 1
    [1] => 2
    [2] => 3
)

Is there any other way to do this without for loop? like using one are two PHP array functions to get the same response.

The above is correct but still if there is any other better way to do this that would be appreciable! Because the same array $a in my code is required to be iterate many times. If I have any better way to do this so I can reduce another iteration( PHP still does iteration in built-in fns, I don't bother it).

Upvotes: 0

Views: 2293

Answers (1)

Alma Do
Alma Do

Reputation: 37365

Yes (since you're on PHP 5.4, array_column() isn't an option),

$result = array_map(function($x)
{
   return $x['a'];
}, $a);

But note, this will still use loop internally (i.e. in the end it always be a loop)

Upvotes: 3

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