Blade @if中的Laravel Session变量 [英] Laravel Session variables in Blade @if

问题描述

当我尝试使用Laravel Session在刀片中设置JS变量来刷新一些数据时，我对Laravel 4.2感到有些奇怪.很简单，我不知道自己错过了什么...

I've hit some weirdness with Laravel 4.2 when trying to set a JS variable in a blade using Laravel Session to flash some data. It's pretty simply, and I can't figure out what I've missed...

目标:在用户注册后立即触发Javascript网站访问. 方法:将welcome_tour变量刷新到会话中，然后在页面刷新时将其设置为JS布尔值，从而在JS中开始浏览.

Goal: trigger a Javascript website tour right after a user registers. Approach: Flash a welcome_tour variable to session, which then sets a JS boolean when the page refreshes which in turn starts the tour in JS.

我的注册功能以会话设置结束:

My register function concludes with the Session setting:

Session::flash('welcome_tour', TRUE);

我正在测试它是否被拾取，并使用刀片中的以下内容正确设置JS变量:

And I'm testing that it's picked up and sets the JS variable correctly with the following in my blade:

<script>
    @if(Session::has('welcome_tour'))
        var welcome_tour = true;
    @else
        var welcome_tour = false;
    @endif
</script>
{{ var_dump(Session::all()) }}

结果HTML中的JS代码段表明未找到welcome_tour:-(

The JS snippet in the resulting HTML indicates that the welcome_tour was not found :-(

<script>
    var welcome_tour = false;
</script>

但是var_dump在屏幕上显示的会话详细信息表明设置正确:

But the Session detail printed to the screen by the var_dump indicates that it was set correctly:

array (size=4)
  '_token' => string 'HHBowu6wdYlIKy4kFiWYwCe4lQRkFbG7jdNDlYXQ' (length=40)
  'flash' => 
    array (size=2)
      'old' => 
        array (size=1)
          0 => string 'welcome_tour' (length=12)
      'new' => 
        array (size=0)
          empty
  'login_82e5d2c56bdd0811318f0cf078b78bfc' => string '1137' (length=4)
  'welcome_tour' => boolean true

Session变量如何既存在又不存在?

How can the Session variable be both there and not there??

推荐答案

尝试使用类似的方法.

<script type="text/javascript">
<?php
if(Session::has('welcome_tour')){
    echo "welcome_tour = true";
}else{
    echo "var welcome_tour = false";
}
?>
</script>

，然后尝试dd(Session::has('welcome_tour'))验证输出是否符合条件.可能是会话的方法返回false.

and also try dd(Session::has('welcome_tour')) to verify the output to condition. might be session has method returning false.

这篇关于Blade @if中的Laravel Session变量的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！