根据列表中选择的内容设置复选框的值 [英] Setting the value of a checkbox based on what is selected in a list

问题描述

我在CMS系统的限制范围内工作，该系统定义了可用于在PHP中的应用程序中使用的表单的某些字段。

函数具有签名：

 函数inputBasicList（$ id，$ value =，$ list = array = NULL，$ displayLabel = true）
  

我这样使用：

  $ theinput = new inputBasicList（type，$ therecord [paymenttype]，array（Cash=>cash，Credit >credit），Payment Type）; 
  

同样，有一个复选框，其签名为：

 函数inputCheckbox（$ id，$ value = false，$ displayName = NULL，$ disabled = false，$ displayLabel = true）
  

我会这样使用

  $ theinput = new inputCheckbox（paid，$ therecord [paid]，Paid）; 
  

我想做的是，如果列表设置为credit而不是默认的cash，以自动将复选框设置为true / checked。

我不认为CMS系统允许使用任何内置函数来执行此操作，并且谨慎添加任何javascript。

只有PHP可能吗？

否则，javascript会有多复杂

编辑：

从phpBMS表单生成的HTML

 < p class =big>< label for =typeclass =important>付款方式< /标签> 
< br /> 
< select name =typeid =typeclass =important> 
< option value =cash>现金< / option> 
< option value =credit>信用< / option> 
< / select> 
< / p> 
< p class =big> 
< input type =checkboxid =paidname =paidvalue =1class =radiochecks/> 
< label id =paidLabelfor =paid> Paid< / label> 
< / p> 
  

解决方案

因为PHP在您的服务器上运行。您需要一些在客户端上运行的代码。

我相信第一个参数 $ id id 属性的元素？如果我错了正确我。如果是这样，您可以使用jQuery JavaScript库执行以下操作：

  jQuery（function（$）{
 $ '#type'）。change（function（）{
 if（$（this）.val（）==credit）{
 $（'＃paid'）。attr（'checked' ，'checked'）; 
} else {
 $（'＃paid'）。removeAttr（'checked'）; 
} 
}）; 
} ; 
  

UDPATE
BMS正在使用Mootools，JavaScript应该像这样在mootools工作：

  window.addEvent（'domready'，function（）{
 $（'类型'）。addEvent（'change'，function（）{
 if（$（this）.get（'value'）=='credit'）{
 $（'paid'）。set （'checked'，'checked'）; 
} else {
 $（'paid'）。removeProperty（'checked'）; 
} 
}）; 
}）; 
  

我建议使用mootools版本的这段代码，但只是为了你的兴趣，如果你想安装jQuery，您可以将 jquery.js 添加到 phpbms / common / javascript 。然后，您可以编辑 phpbms / header.php ，以包括以下内容：

最后 $ tempjsarray [] 后添加：

  $ tempjsarray [] =common / javascript / jquery.js; 
 

然后在 $ phpbms-> showJsIncludes（）; 你需要包括这个，所以jQuery工作没有问题，除了mootools：

  echo'< script type =text /javascript\">jQuery.noConflict();</script>'; 
  





---

如果这不起作用，什么是html输出看起来像。

I am working in the confines of a CMS system, which defines certain fields which can be used to make forms for use within the application in PHP.

The list function has the signature:

function inputBasicList ($id,$value = "",$list = array(), $displayName = NULL, $displayLabel = true)

I use it thusly:

$theinput = new inputBasicList("type",$therecord["paymenttype"],array("Cash"=>"cash","Credit"=>"credit"), "Payment Type");

Likewise, there is a checkbox, which has the signature:

function inputCheckbox($id,$value = false, $displayName = NULL, $disabled = false, $displayLabel = true)

I use it thusly

$theinput = new inputCheckbox("paid", $therecord["paid"], "Paid");

What I would like to do, is if the list is set to credit instead of the default cash, to automatically set the checkbox to true/checked.

I don´t think the CMS system allows a way to do this using any built in functions, and am wary of adding any javascript.

Is such a thing possible with just PHP?

Otherwise, how complicated would the javascript have to be to do such a thing?

edit:

The generated HTML from the phpBMS forms

<p class="big"><label for="type" class="important">Payment Type</label>
<br />
<select name="type" id="type"  class="important" > 
<option value="cash"  >Cash</option>
<option value="credit"  >Credit</option>
</select>
</p>
<p class="big">
<input type="checkbox" id="paid" name="paid" value="1" class="radiochecks"  /> 
<label id="paidLabel" for="paid" >Paid</label>
</p>

解决方案

It's not possible to do such thing with PHP only, because PHP is run on your server. You need some code that is run on the client.

I believe that the first paramater $id is used as id attribute for the elements? If I'm wrong correct me. If so you can do the following using the jQuery JavaScript Library:

jQuery(function($){
  $('#type').change(function(){
    if ($(this).val() == "credit") {
      $('#paid').attr('checked','checked');
    } else {
      $('#paid').removeAttr('checked');
    }
  });
});

UDPATE BMS is using Mootools, the JavaScript should like like this to work in mootools:

window.addEvent('domready', function(){
  $('type').addEvent('change',function(){
    if($(this).get('value') == 'credit') {
      $('paid').set('checked','checked');
    } else {
      $('paid').removeProperty('checked');
    }
  });
});

I would recommend using the mootools version of this snippet, but just for your interest, if you want to install jQuery, you can add the jquery.js into phpbms/common/javascript. Then you can edit phpbms/header.php to include this:

after the last $tempjsarray[] add:

$tempjsarray[] = "common/javascript/jquery.js";

then after $phpbms->showJsIncludes(); you need to include this, so jQuery works without problems besides mootools:

echo '<script type="text/javascript">jQuery.noConflict();</script>';

---

If this doesn't work, you should post what the html output looks like.

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