Laravel 5.1 如何在刀片文件上使用 {{ old('') }} 助手进行无线电输入
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Laravel 5.1 how to use {{ old('') }} helper on blade file for radio inputs
提问by Andy Holmes
I'm currently learning laravel and creating my first form. Everything is awesome until I want to use {{ old('') }} helper in my blade file for radio buttons. I'm not sure how to go about doing it properly, and I can't seem to find much info on here about it either.
我目前正在学习 laravel 并创建我的第一个表单。一切都很棒，直到我想在我的刀片文件中使用 {{ old('') }} 帮助器作为单选按钮。我不知道如何正确地做这件事，而且我似乎也找不到关于它的太多信息。
The code I have is as follows:
我的代码如下：
<div class="form-group">
<label for="geckoHatchling">Gecko Hatchling?</label>
<div class="radio">
<label>
<input type="radio" name="geckoHatchling" id="geckoHatchlingYes" value="1">
Yes
</label>
</div>
<div class="radio">
<label>
<input type="radio" name="geckoHatchling" id="geckoHatchlingNo" value="0" checked>
No
</label>
</div>
</div>
回答by Tim
I think the following is a little bit cleaner:
我认为以下内容更清晰：
<input type="radio" name="geckoHatchling" id="geckoHatchlingYes" value="1" @if(old('geckoHatchling')) checked @endif>
<input type="radio" name="geckoHatchling" id="geckoHatchlingYes" value="1" @if(!old('geckoHatchling')) checked @endif>
@ifis checking the truthiness of the old value and outputting checkedin either case.
@if正在检查旧值的真实性并checked在任何一种情况下输出。
回答by Peter Kota
You can use Form-helper, but it doesn't come out of the box with Laravel. You should install it manually. Please read the docs.
您可以使用Form-helper，但它不是 Laravel 开箱即用的。您应该手动安装它。请阅读文档。
WITH FORM-HELPER
带表格助手
1. Blade
1. 刀片
{!! Form::radio('geckoHatchling', '1', (Input::old('geckoHatchling') == '1'), array('id'=>'geckoHatchlingYes', 'class'=>'radio')) !!}
{!! Form::radio('geckoHatchling', '0', (Input::old('geckoHatchling') == '0'), array('id'=>'geckoHatchlingNo', 'class'=>'radio')) !!}
2. PHP
2. PHP
echo Form::radio('geckoHatchling', '1', (Input::old('geckoHatchling') == '1'), array('id'=>'geckoHatchlingYes', 'class'=>'radio'));
echo Form::radio('geckoHatchling', '0', (Input::old('geckoHatchling') == '0'), array('id'=>'geckoHatchlingNo', 'class'=>'radio'));
WITHOUT FORM-HELPER
没有表格助手
1. Blade
1. 刀片
<input type="radio" name="geckoHatchling" id="geckoHatchlingYes" value="1" @if(Input::old('geckoHatchling')) checked @endif>
<input type="radio" name="geckoHatchling" id="geckoHatchlingNo" value="0" @if(!Input::old('geckoHatchling')) checked @endif>
2. PHP
2. PHP
<input type="radio" name="geckoHatchling" value="1" class="radio" id="geckoHatchlingYes" <?php if(Input::old('geckoHatchling')== "1") { echo 'checked'; } ?> >
<input type="radio" name="geckoHatchling" value="0" class="radio" id="geckoHatchlingNo" <?php if(Input::old('geckoHatchling')== "0") { echo 'checked'; } ?> >
回答by Aravindh Gopi
I have tried the accepted answer's solution, it doesn't work for me,
我已经尝试了接受的答案的解决方案，它对我不起作用，
I had to use this {{}}curly braces (which is blade template's echo) in order to use the conditional statement.
{{}}为了使用条件语句，我不得不使用这个花括号（这是刀片模板的回声）。
<input type="radio" name="geckoHatchling" id="geckoHatchlingYes" value="1" {{(old('geckoHatchling') == '1') ? 'checked' : ''}}>
