如何在laravel 5.1刀片中回显字符串和变量 [英] how to echo strings and variable in laravel 5.1 blade

问题描述

我正在PHP文件中使用以下代码:

I am using this code inside my PHP file:

university.blade.php

{{ url( $universities->universityName.'/students') }}" >

问题是仅显示http://localhost:8000/students，而不显示变量的值.那么解决方案是什么?

The problem is that displays just http://localhost:8000/students, not the value of variable. So what is the solution?

推荐答案

$universities->universityName可能为空

让我们假设您的控制器看起来像这样:

Lets assume your controller looks like this:

<?php namespace App\Http\Controllers

use App\University; // I assume this is your model

class UniversityController extends Controller{

     public function index()
     {
         $universities = Univeristy::all();

         return view('universities', compact('universities'));
     }

}

然后在您的universities.blade.php

<a href="{!! url("{$univerisity->universityName}/students") !!}">Students</a>

，或者您可以检查$universities->universityName是否为空，如果未打印，则URL表示其为空.

or you can check if $universities->universityName is empty, if it doesn't print the URL means its empty.

@if(!$universities || !$universities->universityName)
    <a href="{!! url("{$univerisity->universityName}/students") !!}">Students</a>
@endif

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