1、简介
Laravel 的 Hash门面为存储用户密码提供了安全的Bcrypt哈希算法。如果你正在使用 Laravel 应用自带的 AuthController控制器,将会自动为注册和认证使用该 Bcrypt。
Bcrypt 是散列密码的绝佳选择,因为其“工作因子”是可调整的,这意味着随着硬件功能的提升,生成哈希所花费的时间也会增加。
2、基本使用
可以调用 Hash门面上的 make方法散列存储密码:
<?phpnamespace App\Http\Controllers;use Hash;use App\User;use Illuminate\Http\Request;use App\Http\Controllers\Controller;class UserController extends Controller{ /** * 更新用户密码 * * @param Request $request * @param int $id * @return Response */ public function updatePassword(Request $request, $id) { $user = User::findOrFail($id); // 验证新密码长度... $user->fill([ 'password' => Hash::make($request->newPassword) ])->save(); }}
此外,还可以使用全局的辅助函数 bcrypt:
bcrypt('plain-text');
验证哈希密码
check方法允许你验证给定原生字符串和给定哈希是否相等,然而,如果你在使用 Laravel 自带的 AuthController(详见用户认证一节),就不需要再直接使用该方法,因为自带的认证控制器自动调用了该方法:
if (Hash::check('plain-text', $hashedPassword)) { // 密码匹配...}
检查密码是否需要被重新哈希
needsRehash方法允许你判断哈希计算器使用的工作因子在上次密码被哈希后是否发生改变:
if (Hash::needsRehash($hashed)) { $hashed = Hash::make('plain-text');}

What’s still popular is the ease of use, flexibility and a strong ecosystem. 1) Ease of use and simple syntax make it the first choice for beginners. 2) Closely integrated with web development, excellent interaction with HTTP requests and database. 3) The huge ecosystem provides a wealth of tools and libraries. 4) Active community and open source nature adapts them to new needs and technology trends.

PHP and Python are both high-level programming languages that are widely used in web development, data processing and automation tasks. 1.PHP is often used to build dynamic websites and content management systems, while Python is often used to build web frameworks and data science. 2.PHP uses echo to output content, Python uses print. 3. Both support object-oriented programming, but the syntax and keywords are different. 4. PHP supports weak type conversion, while Python is more stringent. 5. PHP performance optimization includes using OPcache and asynchronous programming, while Python uses cProfile and asynchronous programming.

PHP is mainly procedural programming, but also supports object-oriented programming (OOP); Python supports a variety of paradigms, including OOP, functional and procedural programming. PHP is suitable for web development, and Python is suitable for a variety of applications such as data analysis and machine learning.

PHP originated in 1994 and was developed by RasmusLerdorf. It was originally used to track website visitors and gradually evolved into a server-side scripting language and was widely used in web development. Python was developed by Guidovan Rossum in the late 1980s and was first released in 1991. It emphasizes code readability and simplicity, and is suitable for scientific computing, data analysis and other fields.

PHP is suitable for web development and rapid prototyping, and Python is suitable for data science and machine learning. 1.PHP is used for dynamic web development, with simple syntax and suitable for rapid development. 2. Python has concise syntax, is suitable for multiple fields, and has a strong library ecosystem.

PHP remains important in the modernization process because it supports a large number of websites and applications and adapts to development needs through frameworks. 1.PHP7 improves performance and introduces new features. 2. Modern frameworks such as Laravel, Symfony and CodeIgniter simplify development and improve code quality. 3. Performance optimization and best practices further improve application efficiency.

PHPhassignificantlyimpactedwebdevelopmentandextendsbeyondit.1)ItpowersmajorplatformslikeWordPressandexcelsindatabaseinteractions.2)PHP'sadaptabilityallowsittoscaleforlargeapplicationsusingframeworkslikeLaravel.3)Beyondweb,PHPisusedincommand-linescrip

PHP type prompts to improve code quality and readability. 1) Scalar type tips: Since PHP7.0, basic data types are allowed to be specified in function parameters, such as int, float, etc. 2) Return type prompt: Ensure the consistency of the function return value type. 3) Union type prompt: Since PHP8.0, multiple types are allowed to be specified in function parameters or return values. 4) Nullable type prompt: Allows to include null values and handle functions that may return null values.


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