やはり@が初めに来ます。vendor側でbladeの@から始まる構文を読み込んでいるのでしょう。
@switch($i)
@case(1)
First case...
@break
@case(2)
Second case...
@break
@default
Default case...
@endswitch
loop
In addition to conditional statements, Blade provides simple directives for working with PHP’s loop structures. Again, each of these directives functions identically to their PHP counterparts
@for ($i = 0; $i < 10; $i++)
The current value is {{ $i }}
@endfor
@foreach ($users as $user)
<p>This is user {{ $user->id }}</p>
@endforeach
@forelse ($users as $user)
<li>{{ $user->name }}</li>
@empty
<p>No users</p>
@endforelse
@while (true)
<p>I'm looping forever.</p>
@endwhile
@foreach ($users as $user)
@if ($user->type == 1)
@continue
@endif
<li>{{ $user->name }}</li>
@if ($user->number == 5)
@break
@endif
@endforeach
@foreach ($users as $user)
@continue($user->type == 1)
<li>{{ $user->name }}</li>
@break($user->number == 5)
@endforeach
continue, breakもあります。
The Loop Variable
When looping, a $loop variable will be available inside of your loop. This variable provides access to some useful bits of information such as the current loop index and whether this is the first or last iteration through the loop:
@foreach ($users as $user)
@if ($loop->first)
This is the first iteration.
@endif
@if ($loop->last)
This is the last iteration.
@endif
<p>This is user {{ $user->id }}</p>
@endforeach
@foreach ($users as $user)
@foreach ($user->posts as $post)
@if ($loop->parent->first)
This is first iteration of the parent loop.
@endif
@endforeach
@endforeach
The $loop variable also contains a variety of other useful properties:
Property Description
$loop->index The index of the current loop iteration (starts at 0).
$loop->iteration The current loop iteration (starts at 1).
$loop->remaining The iterations remaining in the loop.
$loop->count The total number of items in the array being iterated.
$loop->first Whether this is the first iteration through the loop.
$loop->last Whether this is the last iteration through the loop.
$loop->depth The nesting level of the current loop.
$loop->parent When in a nested loop, the parent’s loop variable.
forとforeach以外であるんや@loopなんて。
Comments
Blade also allows you to define comments in your views. However, unlike HTML comments, Blade comments are not included in the HTML returned by your application:
{{– This comment will not be present in the rendered HTML –}}
In some situations, it’s useful to embed PHP code into your views. You can use the Blade @php directive to execute a block of plain PHP within your template:
@php
//
@endphp
あーなるほど。laravelはphpと準phpを習っているような感覚に陥るね。cakeはそうでなかったと思うが。
Forms
CSRF Field
Anytime you define a HTML form in your application, you should include a hidden CSRF token field in the form so that the CSRF protection middleware can validate the request. You may use the @csrf Blade directive to generate the token field:
<form method="POST" action="/profile">
@csrf
...
</form>
Method Field
Since HTML forms can’t make PUT, PATCH, or DELETE requests, you will need to add a hidden _method field to spoof these HTTP verbs. The @method Blade directive can create this field for you:
<form action="/foo/bar" method="POST">
@method('PUT')
...
</form>
postの中に@method(‘put’)か。
Including Sub-Views
Blade’s @include directive allows you to include a Blade view from within another view. All variables that are available to the parent view will be made available to the included view:
<div>
@include('shared.errors')
<form>
<!-- Form Contents -->
</form>
</div>
Stacks
Blade allows you to push to named stacks which can be rendered somewhere else in another view or layout. This can be particularly useful for specifying any JavaScript libraries required by your child views:
@push('scripts')
<script src="/example.js"></script>
@endpush
You may push to a stack as many times as needed. To render the complete stack contents, pass the name of the stack to the @stack directive:
If you would like to prepend content onto the beginning of a stack, you should use the @prepend directive:
@push('scripts')
This will be second...
@endpush
// Later...
@prepend('scripts')
This will be first...
@endprepend
Service Injection
The @inject directive may be used to retrieve a service from the Laravel service container. The first argument passed to @inject is the name of the variable the service will be placed into, while the second argument is the class or interface name of the service you wish to resolve:
@inject('metrics', 'App\Services\MetricsService')
<div>
Monthly Revenue: {{ $metrics->monthlyRevenue() }}.
</div>
Extending Blade
Blade allows you to define your own custom directives using the directive method. When the Blade compiler encounters the custom directive, it will call the provided callback with the expression that the directive contains.
The following example creates a @datetime($var) directive which formats a given $var, which should be an instance of DateTime:
namespace App\Providers;
use Illuminate\Support\Facades\Blade;
use Illuminate\Support\ServiceProvider;
class AppServiceProvider extends ServiceProvider
{
/**
* Perform post-registration booting of services.
*
* @return void
*/
public function boot()
{
Blade::directive('datetime', function ($expression) {
return "<?php echo ($expression)->format('m/d/Y H:i'); ?>";
});
}
/**
* Register bindings in the container.
*
* @return void
*/
public function register()
{
//
}
}
