Laravel 8 padBoth {#collection-method}

padBoth 方法包装了 PHP 的 str_pad 函数，在指定字符串的两侧填充上另一字符串：

use Illuminate\Support\Str;

$padded = Str::of('James')->padBoth(10, '_');

// '__James___'

$padded = Str::of('James')->padBoth(10);

// '  James   '