使用php转换数组数据

Question

            [original:protected] => Array
                (
                    [user_id] => 65751
                    [social_id] => 
                    [parent_id] => 
                    [org_id] => 1
                    [type] => 3
                    [s_id] => 1
                    [role_id] => 0
                    [active] => 1
                    [name] => RX
                    [first_name] => JJ
                    [last_name] => DKL
                    [email] => [e-mail]
                    [secondary_email] => 
                    [username] => cLvcyUr2

                )


    [1] => User Object

                (
                    [user_id] => 82197
                    [social_id] => 
                    [parent_id] => 
                    [org_id] => 1
                    [type] => 2
                    [s_id] => 1
                    [role_id] => 0
                    [active] => 1
                    [name] => sec
                    [first_name] => XX
                    [last_name] => J3
                    [email] => [e-mail]
                    [secondary_email] => 
                    [username] => VfTqXyvJ

                )

How to transform the array data mean to keep only two email and username rest should remove

Array (
[0] => Array (
    [email] => [e-mail]
    [username] => cLvcyUr2
    )
[1] => Array (
    [email] => [e-mail]
    [username] => VfTqXyvJ
    )
)

How could this possible i do not to unset data one by one it should automatically unset and pick only two value

Answer 1

Why not create an empty array and just copy the values you need? Trying to unset everything in your array is a lot of work and is not really maintainable, out of experience.

Note that your pasted code contains both an array and object, but your question is about an array only.

$newArray = [];

foreach ($oldArray as $item) {
    $newArray[] = [
        'email' => $item->email, 
        'username' => $item->username
    ]; // If $item is object
    $newArray[] = [
        'email' => $item['email'], 
        'username' => $item['username']
    ]; // If $item is array
}

var_dump($newArray);