We may include the same content in multiple pages, such as file headers, links to css or js, etc. We can use layout files to complete this function.
Let's create a new layout file, for example views/
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<link rel="stylesheet" href="/bootstrap/3.3.4/css/">
</head>
<body>
<div class="container">
@yield('content')
</div>
</body>
</html>
We created an inexplicable structure and introduced bootstrap. Note that @yield is the layout placeholder for blade. In the future, our page content will be filled here and modified
@extends('layout')
@section('content')
<h1>About {{ $first }} {{ $last }}</h1>
@stop
The above code means we use the layout file and then add content in the content segment.
Add in :
Route::get('about', 'PagesController@about');
Route::get('contact', 'PagesController@contact');
Add in :
public function contact() {
return view('');
}
Create new view pages/
@extends('layout')
@section('content')
<h1>Contact Me!</h1>
@stop
Check it out!
In the layout file, we can add multiple @yield , such as adding @yield('footer') in :
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<link rel="stylesheet" href="/bootstrap/3.3.4/css/">
</head>
<body>
<div class="container">
@yield('content')
</div>
@yield('footer')
</body>
</html>
For example, if there is a script in it, it can be placed in this paragraph.
@extends('layout')
@section('content')
<h1>Contact Me!</h1>
@stop
@section('footer')
<script>
alert('Contact from scritp')
</script>
@stop
There will be a dialog box to access contact, and about will still be displayed normally
Use @if to make judgments
@extends('layout')
@section('content')
@if ($first = 'Zhang')
<h1>Hello, Zhang</h1>
@else
<h1>Hello, nobody</h1>
@endif
@stop
It can also be regarded as @unless is equivalent to if !, and @foreach, etc.
public function about()
{
$people = [
'zhang san',
'li si',
'wang wu'
];
return view('', compact('people'));
}
@extends('layout')
@section('content')
<h1>Person:</h1>
<ul>
@foreach($people as $person)
<li>{{ $person }}</li>
@endforeach
</ul>
@stop
There is a situation where the data may come from a database and the collection may be empty, like this:
$people = [];
To handle this situation, please add @if to handle it
@extends('layout')
@section('content')
@if (count($people))
<h1>Person:</h1>
<ul>
@foreach($people as $person)
<li>{{ $person }}</li>
@endforeach
</ul>
@endif
<h2>Other info</h2>
@stop
That's better.
The above is all about this article. I hope it will be helpful to everyone to learn Laravel5.