php get only values from an array [duplicate]

Answer 1

You are looking for array_map function

$ids = array_map(function($row){ return $row['id']; }, $array);

Check this link for more info http://php.net/manual/en/function.array-map.php

Answer 2

use array_column function:

$array = array(
    array(
        'id' => 123456
    ),
    array(
        'id' => 52458
    ),
);

$id_array = array_column($array, 'id');

print_r($id_array);

output:

Array
(
    [0] => 123456
    [1] => 52458
)

for PHP version < 5.5 you can use:

$data = array_map(function($element) {
    return $element['id'];
}, $array);

print_r($data);