1 check if value is null laravel 5 1 Laravel check variable passed from controller if not empty in view 2 if array empty blade laravel 9 How to check if a variable has data in laravel blade 1 How to check that the variable is empty or not 2 Empty or null variables in Laravel...
为了方便,Blade 也提供了一个@unless命令: @unless(Auth::check())你尚未登录。 @endunless 除了已经讨论的条件指令之外,@isset和@empty指令也可以用作各自PHP功能的方便的快捷方式: @isset($records)// $records is defined and is not null...@endisset @empty($records)// $records is "empty"...@end...
为方便起见,Blade 还提供了@unless指令,表示除非: @unless(Auth::check()) You are not signed in.@endunless 此外,Blade 还提供了@isset和@empty指令,分别对应 PHP 的isset和empty方法: @isset($records)// $records is defined and is not null...@endisset@empty($records)// $records is "empty".....
In the sample below, I spit out the actual error when I'm in my development environment but give a generic message if in any other environment. @if(App::environment('development')) Error: {{ $record->s_error }} @else XML Parsing Error - Please double check that your file is formatte...
Blade 模板引擎通过提供美观的替代方案来清理视图中的内联 PHP,并包含强大的新功能。 安装 通过五个简单的步骤,您可以安装 Laravel 并在系统上设置它。 第1 步 - 我需要什么? 在安装 Laravel 之前,您需要检查是否具有以下所需元素: Laravel 需要一个 Web 服务器环境,并且可以在 Apache、IIS 和 Nginx 中轻松运行...
@elseif (count($records) > 1) I have multiple records! @else I don't have any records! @endifFor convenience, Blade also provides an @unless directive:@unless (Auth::check()) You are not signed in. @endunlessIn addition to the conditional directives already discussed, the @isset and ...
@elseif (count($records) > 1) I have multiple records! @else I don't have any records! @endifFor convenience, Blade also provides an @unless directive:@unless (Auth::check()) You are not signed in. @endunlessIn addition to the conditional directives already discussed, the @isset and ...
Checks if the current route name is not equal to the given parameter. You can use a wildcard likeblog.post.* @routeisnot('webshop.checkout') Do something only if this is not the checkout@endrouteisnot @instanceof Checks if the first parameter is an instance of the second parameter. ...
Laravel 还提供了一个全局性的 old。如果要在 Blade 模板 中显示旧输入,则使用 old 来重新填充表单会更加方便。如果给定字段不存在旧输入,则将返回 null:关于可选字段的注意事项默认情况下, 在您的 Laravel 应用的全局中间件堆栈 App\Http\Kernel 类中包含了 TrimStrings 和ConvertEmptyStringsToNull 中间件。因此...
Laravel是一种流行的PHP框架,用于构建Web应用程序。在Laravel中,路由是用于定义应用程序的URL和对应的处理逻辑的机制。当你的Laravel路由不再工作并显示404错误时,可能有以下几个原因和解决方法: 路由定义错误:首先,检查你的路由定义是否正确。确保你在路由文件中正确地定义了URL和对应的处理方法。你可以使用php artisan...