In this last method, we will be using PHP native functionfile_existsfunction to check whether the file exists in the directory or not. Here is the following code, you need to add to the controller: public function index() { if (file_exists(public_path('path/file-name.png'))) echo '...
])returnRedirect::intended('home')->with('flash_message','You are logged in!~~'); 在模板中:@if(Session::get('flash_message')){{ Session::get('flash_message'}}@endif 2. 在模板中通过@if Session::get('flash_message')来判断是否有flash message,如果有则显示出来 Mass Assignment protection...
If you are using the s3 driver, the fully qualified remote URL will be returned:1use Illuminate\Support\Facades\Storage; 2 3$url = Storage::url('file.jpg');When using the local driver, all files that should be publicly accessible should be placed in the storage/app/public directory. ...
You may also come across situations where you want to update an existing model or create a new model if none exists. Laravel provides an updateOrCreate method to do this in one step. Like the firstOrCreate method, updateOrCreate persists the model, so there's no need to call save():...
Check the specified module. If it exists, will returntrue, otherwisefalse. Module::has('blog'); Get all enabled modules. Module::enabled(); Get all disabled modules. Module::disabled(); Get count of all modules. Module::count();
That's where this package comes to the rescue. It will load the asset just ONCE, even if it's loaded from multiple blade files. FAQ Before making any changes, you can run the commandphp artisan basset:check. It will perform a basic test to initialize, write, and read an asset, giving...
This function will handle each response from the participant in the survey and either return an open-ended question or end the survey if the participant has answered the questions. Next, we check if a cookie with the question_id existed within the request. This will help us track and ...
根目录是public 必须设置 web 服务器可读写storage和bootstrap/cache目录及其子目录 在web 服务器配置中设置优雅链接 (即去除index.php)二、配置环境配置.env 文件内的变量会被系统级别或服务器级别的变量覆盖。 .env 文件内的变量通过env()函数获取,config目录下的变量通过config()函数获取。 在运行PHPUnit测试时...
Notice: if you want to start with testing, we have a course Testing in Laravel 11 For Beginners where we specifically use Pest syntax first, but also have PHPUnit examples. Default Database: SQLite The default database for Laravel was changed to SQLite. You can check the pull request SQLite...
Schema::dropIfExists('table');// 确定给定表是否存在Schema::hasTable('table');// 确定给定表是否具有给定列Schema::hasColumn('table', 'column');// 更新现有表Schema::table('table', function($table){});// 指示应重命名给定的列$table->renameColumn('from', 'to');// 指示应删除给定的列$...