得到下拉列表中選擇下一個頁面上的指數

Question

我有一個表格

，其作用是test4.php

 <h1>Signup for Free Account</h1>    

     <div class="login-fields"> 

      <p>Create your free account:</p> 

它需要用戶名

  <div class="field"> 
       <label for="firstname">First Name:</label> 
       <input type="text" id="firstname" name="firstname" value="" placeholder="First Name" onBlur="validate(this,document.getElementById('FName'));" class="login" /> 
       <span id="FName" class="help"></span> 

      </div> <!-- /field --> 

它採取用戶姓氏

  <div class="field"> 
       <label for="lastname">Last Name:</label>  
       <input type="text" id="lastname" name="lastname" value="" placeholder="Last Name" class="login" onBlur="validate(this,document.getElementById('LName'));" /> 
       <span id="LName" class="help"> 
      </div> 
      <!-- /field --> 

這需要電子郵件ID

  <div class="field"> 
       <label for="email">Email Address:</label> 
       <input type="text" id="email" name="email" value="" placeholder="Email" class="login" onBlur="validate(this,document.getElementById('Uemail'));" /> 
       <span id="Uemail" class="help"> 
      </div> <!-- /field --> 

它採用獨特的ID爲用戶

  <div class="field"> 
       <label for="uniqueid">Unique Id:</label> 
       <input type="text" id="uniqueid" name="uniqueid" value="" placeholder="Unique Id" class="login" onBlur="validate(this,document.getElementById('Uid'));" /> 
       <span id="Uid" class="help"> 
      </div> <!-- /field --> 

它需要密碼

  <div class="field"> 
       <label for="password">Password:</label> 
       <input type="password" id="password" name="password" value="" placeholder="Password" class="login" onBlur="validate(this,document.getElementById('pwd'));" /> 
       <span id="pwd" class="help"> 
      </div> <!-- /field --> 

它符合密碼

  <div class="field"> 
       <label for="confirm_password">Confirm Password:</label> 
       <input type="password" id="confirm_password" name="confirm_password" value="" placeholder="Confirm Password" class="login" onBlur="validate(this,document.getElementById('cpwd'));" /> 
       <span id="cpwd" class="help"> 
      </div> <!-- /field --> 

這需要貨幣

      <div class="field"> 
       <label for="currency">Currency:</label> 
            <select id="currency" name="currency"> 
             <option value="0">Indian Rupee</option> 
             <option value="1">US Dollar</option> 
             <option value="2">Euro</option> 
             <option value="3">Yen</option> 
             <option value="4">Pound</option> 
             <option value="5">Australian Dollar</option> 
             <option value="6">Canadian Dollar</option> 
             <option value="7">Swedish Krone</option> 
             <option value="8">Hong Kong Dollar</option> 
             <option value="9">New Zealand Dollar</option>            
            </select> 
      </div> <!-- /field --> 

     </div> <!-- /login-fields --> 

     <div class="login-actions"> 
      <input type="submit" class="button btn btn-primary btn-large" id="subReg" value="Register"/>     
     </div> <!-- .actions --> 

    </form> 

而在test4.php 我取它像

$currency= $_REQUEST['currency'];  

但我誤差

Notice: Undefined index: currency in C:\xampp\htdocs\money_manager\test4.php 

如何檢索selected index value上test4.php

驗證所有功能用於js檢查

function validateAll() 
{ 
    var Gfn=document.getElementById("firstname"); 
    var Gln=document.getElementById("lastname"); 
    var Gid=document.getElementById("uniqueid"); 
    var Gemail=document.getElementById("email"); 
    var Gpwd=document.getElementById("password"); 
    var Gcpwd=document.getElementById("confirm_password"); 

    if(Gfn.value.length === 0) 
    { 
     document.getElementById("FName").innerHTML="This field can not be empty."; 
     firstname.focus(); 
     return false; 
    } 
    if(Gln.value.length === 0) 
    { 
     document.getElementById("LName").innerHTML="This field can not be empty."; 
     lastname.focus(); 
     return false; 
    } 
    if(Gemail.value.length === 0) 
    { 
     document.getElementById("Uemail").innerHTML="This field can not be empty."; 
     email.focus(); 
     return false; 
    } 
    if(Gid.value.length === 0) 
    { 
     document.getElementById("Uid").innerHTML="This field can not be empty."; 
     uniqueid.focus(); 
     return false; 
    } 
    if(Gpwd.value.length === 0) 
    { 
     document.getElementById("pwd").innerHTML="This field can not be empty."; 
     password.focus(); 
     return false; 
    } 
    if(Gcpwd.value.length === 0) 
    { 
     document.getElementById("cpwd").innerHTML="This field can not be empty."; 
     confirm_password.focus(); 
     return false; 
    } 
    if(validpwd() === "error") 
    { 
     document.getElementById("cpwd").innerHTML="Password and confirm password does not match"; 
     confirm_password.focus(); 
     return false; 
    } 
    if(validemail() === "error") 
    { 
     document.getElementById("Uemail").innerHTML="please enter valid email."; 
     email.focus(); 
     return false; 
    } 




    return true; 
} 

Answer 1

要麼你把它放在一個<form>或你犯了一個重定向到另一個頁面的URL（GET方法）所有DATAS。