谁能帮我从jquery中获取变量并在php中使用 [英] can any one help to me to get variable from jquery and use in php

问题描述

当我选择生产者类型onchange时，我现在有了选择列表，我希望从jquery获得生产者类型值，并且我想用php isset(producertype)作为角色并将角色类型分别更改为

i have fllowing select list now when i select producertype onchange i want producerType value from jquery and i want to isset(producertype) with php for role and change the role type respectively as

<select id="ProducerType" name="ProducerType" style="float:left;"> <option value="Principal">Principal</option> <option value="Producer">Producer</option> <option value="SoleProprietor">Sole Proprietor</option>
</select>

<select id="ProducerType" name="ProducerType" style="float:left;"> <option value="Principal">Principal</option> <option value="Producer">Producer</option> <option value="SoleProprietor">Sole Proprietor</option>
</select>

<select id="Role" name="Role" style="float:left;"> <option value="">Agent</option>
</select>

<select id="Role" name="Role" style="float:left;"> <option value="">Agent</option>
</select>

推荐答案

我理解这个问题，答案将很复杂. 首先，您需要将onChange事件添加到ProducerType选择框中. 在您的html末尾添加此代码:

I understand the question and the answer is going to be complex. First you need to add onChange event to your ProducerType selectbox. Add this at the end of your html:

<script>
$(document).ready(function(){
   // attach event on change
   $('#ProducerType').on('change',function(){
      // call script on server to check if isset() and receive values for Role
      $.get("checkproducer.php?ProducerType="+$('#ProducerType').val(),function(result){
               // here the script on server returned data already
               // update Role selectbox with new values
               $('#Role').html(result)
           })
   })
})
</script>

确保照常加载了jquery.js.

Make sure you have jquery.js loaded as usual.

您将需要在服务器上创建一个PHP脚本来处理检查并为您选择的输入返回新数据.像这样(另存为"checkproducer.php"):

You will need to create a PHP script on server which handles the check and returns new data for your select input. Like this (save as "checkproducer.php"):

<?php
    if ($_GET['ProducerType']=="Principal")
       echo "<option value=1>Principal1</option>"
           ."<option value=2>Principal2</option>";
    if ($_GET['ProducerType']=="Producer")
       echo "<option value=1>Producer1</option>".
           ."<option value=2>Producer2</option>";
    if ($_GET['ProducerType']=="SoleProprietor")
       echo "<option value=1>SoleProprietor1</option>"
           ."<option value=2>SoleProprietor2</option>";

    // etc
?>

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