How to smooth an associative array into an array with only values ​​in PHP?

Question

I have an array that has keys and values. For example,

Array (
    [name] => aalaap
    [age] => 29
    [location] => mumbai
)

I want to convert the keys from this to values, but I want the values ​​to appear right after the keys. For example,

Array (
    [0] => name
    [1] => aalaap
    [2] => age
    [3] => 29
    [4] => location
    [5] => mumbai
)

I can easily write an iterative function that will do this ... for example, for example:

array_flatten($arr) {
    foreach ($arr as $arrkey => $arrval) {
        $arr_new[] = $arrkey;
        $arr_new[] = $arrval;
    }
    return $arr_new;
} 

... but I'm trying to find out if it can be done using the array_combine, array_keys, array_valuesand / or array_merge, preferably in one, so I do not need to use a custom function.

Whether there is a?

Answer 1

, , , "" :

$array = array('name' => 'aalaap','age' => 29, 'location' => 'mumbai');
$answer = array();

array_walk($array, create_function('$val,$key', 'global $answer; $answer[]=$key; $answer[]=$val;'));

var_dump($answer);

.

, :

array_walk($array, create_function('$val,$key,$result', '$result[]=$key; $result[]=$val;'), &$answer);

Answer 2

, - , :

$a = array('a' => 'A', 'b' => 'B', 'c' => 'C');

$a = array_merge(array_keys($a), array_values($a));
print_r($a);

:

$b = array();
foreach ($a as $key => $value)
{
    $b[] = $key;
    $b[] = $value;
}

Answer 3

PHP 5.3+ Just Jules :

array_walk($array, function($val, $key) use (&$answer) {
    $answer[] = $key;
    $answer[] = $val;
});

Answer 4

, , . PHP - :

$array = array('name' => 'aalaap', 'age' => 29, 'location' => 'mumbai');

# Separate keys and values into distinct arrays
$keys = array_keys($array);
$values = array_values($array);

# Generate 2 new array containing indexes for the 2 arrays which contain
# only odd/even numbers:
$keysKeys = range(0, count($keys) * 2 - 1, 2);
$valuesKeys = range(1, count($keys) * 2, 2);

# Combine the keys with the values and add the results:
$array = array_combine($keysKeys, $keys) + array_combine($valuesKeys, $values);

# Sort the resulting array, otherwise the numbering will be broken
# (1,3,5,2,4,6)
ksort($array);

# Result:
var_dump($array);
array(6) {
    [0]=>
        string(4) "name"
    [1]=>
        string(6) "aalaap"
    [2]=>
        string(3) "age"
    [3]=>
        int(29)
    [4]=>
        string(8) "location"
    [5]=>
        string(6) "mumbai"
}

Answer 5

array_reduce .

array_reduce(array_keys($arr), function($carry, $key)use($arr){
    $carry[] = $key;
    $carry[] = $arr[$key];
    return $carry;
}, array());