Blade is a simple, yet powerful templating engine provided with Laravel. Unlike controller layouts, Blade is driven by template inheritance and sections. All Blade templates should use the .blade.php extension.
<!-- Stored in resources/views/layouts/master.blade.php -->
<html>
<head>
<title>App Name - @yield('title')</title>
</head>
<body>
@section('sidebar')
This is the master sidebar.
@show
<div class="container">
@yield('content')
</div>
</body>
</html>
@extends('layouts.master')
@section('title', 'Page Title')
@section('sidebar')
@@parent
<p>This is appended to the master sidebar.</p>
@stop
@section('content')
<p>This is my body content.</p>
@stop
Note that views which extend a Blade layout simply override sections from the layout. Content of the layout can be included in a child view using the @@parent directive in a section, allowing you to append to the contents of a layout section such as a sidebar or footer.
Sometimes, such as when you are not sure if a section has been defined, you may wish to pass a default value to the @yield directive. You may pass the default value as the second argument:
@yield('section', 'Default Content')
Hello, {{ $name }}.
The current UNIX timestamp is {{ time() }}.
Sometimes you may wish to echo a variable, but you aren't sure if the variable has been set. Basically, you want to do this:
{{ isset($name) ? $name : 'Default' }}
However, instead of writing a ternary statement, Blade allows you to use the following convenient short-cut:
{{ $name or 'Default' }}
If you need to display a string that is wrapped in curly braces, you may escape the Blade behavior by prefixing your text with an @ symbol:
@{{ This will not be processed by Blade }}
If you don't want the data to be escaped, you may use the following syntax:
Hello, {!! $name !!}.
Note: Be very careful when echoing content that is supplied by users of your application. Always use the double curly brace syntax to escape any HTML entities in the content.
@if (count($records) === 1)
I have one record!
@elseif (count($records) > 1)
I have multiple records!
@else
I don't have any records!
@endif
@unless (Auth::check())
You are not signed in.
@endunless
@for ($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
@include('view.name')
You may also pass an array of data to the included view:
@include('view.name', ['some' => 'data'])
To overwrite a section entirely, you may use the overwrite statement:
@extends('list.item.container')
@section('list.item.content')
<p>This is an item of type {{ $item->type }}</p>
@overwrite
@lang('language.line')
@choice('language.line', 1)
{{-- This comment will not be in the rendered HTML --}}
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 / interface name of the service you wish to resolve:
@inject('metrics', 'App\Services\MetricsService')
<div>
Monthly Revenue: {{ $metrics->monthlyRevenue() }}.
</div>
Blade even allows you to define your own custom directives. You can use the directive method to register a directive. When the Blade compiler encounters the directive, it calls the provided callback with its parameter. This allows you to replace your directives with any logic as complex as you want.
The following example creates a @datetime($var) directive which formats a given $var:
Blade::directive('datetime', function($expression)
{
return "<?php echo with{$expression}->format('m/d/Y H:i'); ?>";
});
The final PHP executed by this directive will be:
<?php echo with($var)->format('m/d/Y H:i'); ?>