Laravel 5.4中以下示例代码之间的区别是什么？

Question

What is the difference between the two sample codes below the second returns an error I don't know why

@if ( auth()->check() )
Welcome  {{ Auth::user()->name }}

and this

@if ( {{auth::check() }} )
Welcome  {{ Auth::user()->name }}

Both are in a blade file. Please lets discuss this for better understanding. Also please indicate which is better to use in both scenarios

Answer 1

You shouldn't do this:

@if ( {{auth::check() }} )

It will give you an error. It's almost the same as doing this:

if (echo(auth()->check()))

This code:

{{ auth()->check() }}

Will be converted to this vanilla PHP code:

<?php echo e(auth()->check()); ?>

Where e() is Laravel helper.

https://laravel.com/docs/5.5/blade#displaying-data