刀片是否在控制器功能中 [英] Blade if condition in controller function

问题描述

是否可以在控制器功能中使用叶片@if条件.这是我的PublicController功能

Is it possible to use blade @if conditions in functions of controller. This is my function of PublicController

    public function tourBanner($country){

    @if( $country == 'country1')
        background-image:url({{ asset('images/inside8.jpg') }});                        
    @elseif ( $country == 'country2')           
            background-image:url({{ asset('images/inside7.jpg') }});

    @elseif ( $country == 'country3')           
            background-image:url({{ asset('images/inside5.jpg') }});

    @elseif ( $country == 'country4')           
            background-image:url({{ asset('images/inside6.jpg') }});            
    @else           
            background-image:url({{ asset('images/inside10.jpg') }});           
    @endif

    return banner;
}

我收到此错误

Parse error: syntax error, unexpected 'if' (T_IF)

如果在控制器中使用if语句，我犯了什么错误或我们无法使用刀片服务器?

What mistake i have made or we can't use blade if if statements in controller ?

推荐答案

您代码中的错别字，该代码是针对刀片文件而不是PHP文件的.在您的代码中列出问题

Typos within your code that code is meant for blade files and not for your PHP files. Listing issues within your code

从您的代码中删除@

@if .... @elsif

应该是

if .... elseif 

对于多个if ... else更好，您可以使用switch case

better for multiple if ... else you can use switch case

您正在返回banner，但是它应该是$banner，并且您没有为$banner变量分配任何值.所以你的代码就像

You were returning banner but it should be $banner and also you were not assigning any value to $banner variable. So your code be like as

if( $country == 'country1')
       $banner =  "background-image:url(".asset('images/inside8.jpg') .")";
.......

return $banner;

最好像这样使用switch case

switch($country)
{
     case "country1":
          $banner =  "background-image:url(".asset('images/inside8.jpg') .")";
          break;
     case ..............
}

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