将字符串分成assoc数组

Question

I have a string like this:

$config = 'app.name = "My App";
            app.id = "myappid";
            app.components.cache.id = "Memcache";';

I need to convert it to array like this:

app=>[
    'name=>'My App',
    'id'=>'myappid',
    'components'=>[
        'cache'=>['id'=>'Memcache']
    ]
]

I use explode for divide on the pieces, but i don't know what i need to do next.

$arr = explode(";", $config);
$data = [];
foreach ($arr as $item) {
    $pieces = explode('=', $item);
    $pieces_dotes = explode('.', $pieces[0]);
    foreach ($pieces_dotes as $piece) {
     //what i need to do here?
    }
}

Answer 1

How about this? Within the inner foreach loop, you're assigning the temp variable by reference to itself, so you build a stack of array keys, and then assign the value to it at the end.

$config = 'app.name = "My App";
            app.id = "myappid";
            app.components.cache.id = "Memcache";';
$arr = explode(";", $config);
$data = [];
foreach ($arr as $item) {
    $temp = &$data;
    $item = trim($item);
    if (empty($item)) continue;
    list($setting, $value) = explode("=", trim($item));
    $setting = explode(".", trim($setting));
    foreach ($setting as $set) {
        $temp = &$temp[$set];
    }
    $temp = trim($value, '" ');
}
print_r($data);