在php文件中使用的javaScript字段验证

时间:2012-05-01 04:36:45

标签: php javascript

我正在处理需要使用JavaScript进行字段验证的php表单 但我不知道如何在PHP中使用它,因为我是这个人的新人。一些我如何尝试通过以下代码

<?php

 session_start();
 // include_once('header.php');

?>

<div id="contentarea">

<div style="background-color:#3fa0c1;color:#FFF">
 <h2 style="color:#FFF"> Checkout </h2>
</div>
<br/>  
<h4> Welcome to Checkout. <br/>
Please fill in the fields below to complete your purchase! 
</h4><br/>


<form action=" " method="POST" name="Form" onsubmit="return ValidateForm();"  style="color:#000000; font-size:18px;" 

<?php switch ($_GET["checkoutType"]) {
        case "Guest":   echo 'action="guestCheckout.php"'; break;
        case "Register": echo 'action="registerCheckout.php"'; break;
    }
?>

>   
    <h3> BILLING ADDRESS </h3><br/>

    First Name*
    <input style="height:20px; margin-bottom:10px;" name="firstname" size="40" id="firstname"/> <br/>

    Last Name* 
    <input style="height:20px; margin-bottom:10px;"  name="lastname" size="40"/><br/>

    Email Address* 
    <input style="height:20px; margin-bottom:10px;"  name="email" size="40"/><br/>

    Confirm Email Address* 
    <input style="height:20px; margin-bottom:10px;"  name="email2" size="40"/><br/>

    Telephone* 
    <input style="height:20px; margin-bottom:10px;"  name="telephone" size="40"/><br/>

    Address* <br/>
    <input  style="height:20px; margin-bottom:10px;"  name="addr1" id="addr1" size="40"/><br/>
    <input  style="height:20px; margin-bottom:10px;"  name="addr2" id="addr2" size="40"/><br/>

    Country*  <br/>
    <!-- input  style="height:20px; margin-bottom:10px;"  name="country" size="40"/><br/-->
    <select name="country" id="country">
         <option value="select_country"> Select Country </option>
         <option value="US"> United States </option>
    </select>
    <br/>
    <br/>

    City*  <br/>
    <input  style="height:20px; margin-bottom:10px;"  name="city" size="40"/><br/>

    Zip Code* 
    <input  style="height:20px; margin-bottom:10px;" name="postcode" size="40"/><br/>

    State* <br/>
    <!-- input  style="height:20px; margin-bottom:10px;"  name="state" size="40"/><br/-->
    <select name="region" id="state">
         <option value="select_state"> Select Region</option>
         <option value="FL"> Florida </option>
         <option value="GA"> Georgia </option>
    </select>
    <br/><br/>

    Company
    <input  style="height:20px; margin-bottom:10px;" name="company" size="40"/><br/>

    <input name="ship_to_same_addr" type="checkbox"  checked="checked" /> Ship to the same address. <br/><br/>

<h3> SHIPPING METHOD </h3><br/>

    <b> Post Office: Priority Mail (USA) - First Class (International) </b> <br/>
    <input type="radio" name="shipping_method" id="shipping_method" checked="checked" />  Fixed <b> $6.95</b>. <br/><br/>

<h3> PAYMENT METHOD </h3><br/>

    <input type="radio" name="pay_method" id="pay_method" checked="checked" />  Credit Card (Authorize.net) <br/><br/>

    Credit Card Type*
    <!--input  style="height:20px; margin-bottom:10px;"  name="cc_type" size="40"/><br/ -->
    <select name="cc_type" id="cc_type">
     <option value="AE"> American Express </option>
     <option value="DI"> Discover </option>
     <option value="MC"> Master Card </option>
     <option value="VI"> Visa </option>
    </select>
    <br/><br/>

    Credit Card Number*
    <input  style="height:20px; margin-bottom:10px;"  name="cc_number" id="cc_number" size="40"/><br/>

    Credit Card Security Code*
    <input  style="height:20px; margin-bottom:10px;"  name="cc_cid" id="cc_cid" size="40"/><br/>

    Expiration Date*<br/>
    <!-- input  style="height:20px; margin-bottom:10px;"  name="cc_exp_month" size="20"/-->
     <select name="cc_exp_month" id="cc_exp_month">
         <option value="select_month"> Select Month </option>
         <option value="01"> 01 - January </option>
         <option value="02"> 02 - February </option>
         <option value="03"> 03 - March </option>
         <option value="04"> 04 - April </option>
         <option value="05"> 05 - May </option>
         <option value="06"> 06 - June </option>
         <option value="07"> 07 - July  </option>
         <option value="08"> 08 - August </option>
         <option value="09"> 09 - September </option>
         <option value="10"> 10 - October </option>
         <option value="11"> 11 - November </option>
         <option value="12"> 12 - December </option>
    </select>
    <br/>
    <!-- input  style="height:20px; margin-bottom:10px;"  name="cc_exp_year" size="20"/--><br/>
    <select name="cc_exp_year" id="cc_exp_year">
         <option value="select_year"> Select Year </option>
         <option value="2012"> 2012 </option>
         <option value="2013"> 2013 </option>
         <option value="2014"> 2014 </option>
         <option value="2015"> 2015 </option>
         <option value="2016"> 2016 </option>
         <option value="2017"> 2017 </option>
         <option value="2018"> 2018 </option>
         <option value="2019"> 2019 </option>
         <option value="2020"> 2020 </option>
    </select>
    <br/><br/>

    Coupon Code
     <input  style="height:20px; margin-bottom:10px;"  name="coupon_code" size="40"/><br/>

    Comments
    <textarea rows="6" cols="40" name="comments"></textarea><br/><br/>

    <input type="submit" value="Place Order Now" />

</form>


<script>
function ValidateForm()
{
    var firstname = document.Form.firstname;
    var lastname = document.Form.lastname;

    var email = document.Form.email;
    var email2 = document.Form.email2;   
    var telephone = document.Form.telephone;

    var address = document.Form.addrl;
    var address = document.Form.addr2;
     var country = document.Form.country;
     var city = document.Form.city;

     var postcode = document.Form.postcode;
     var state = document.Form.state;
     var company = document.Form.company;
     var creditcardtype = document.Form.cc_type;
     var creditcardnumber = document.Form.cc_number;
     var creditcardsecuritycode = document.Form.cc_cid;
     var expirationdate = document.Form.cc_exp_month;
     var expirationdate = document.Form.cc_exp_month;


    if (firstname.value == "")
    {
        window.alert("Please enter your last name.");
        firstname.focus();
        return false;
    }  


    if (lastname.value == "")
    {
        window.alert("Please enter your last name.");
        lastname.focus();
        return false;
    }  

    if (email.value == "")
    {
        window.alert("Please enter e-mail address.");
        email.focus();
        return false;
    }
    if (email.value.indexOf("@", 0) < 0)
    {
        window.alert("Please enter a valid e-mail address.");
        email.focus();
        return false;
    }
    if (email2.value == "")
    {
        window.alert("Please enter confirm e-mail address.");
        email2.focus();
        return false;
    }
    if (email2.value.indexOf("@", 0) < 0)
    {
        window.alert("Please enter a valid e-mail address.");
        email2.focus();
        return false;
    }
    if(email.value != email2.value)
    {
      window.alert("Please enter email & confirm email both same");
      return false;
    }

    if  (telephone.value == "")
    {
        window.alert("Please enter your telephone number.");
        telephone.focus();
        return false;
    }

    if (addr1.value == "")
    {
        window.alert("Please enter your address1.");
        add1.focus();
        return false;
    }
     if (addr2.value == "")
    {
        window.alert("Please enter your address2.");
        add2.focus();
        return false;
    }

   if (country.selectedIndex < 1)
    {
        alert("Please select country.");
        country.focus();
        return false;
    }
     if (city.value == "")
    {
        window.alert("Please enter city.");
        city.focus();
        return false;
    }
     if (postcode.value == "")
    {
        window.alert("Please enter zip code.");
        postcode.focus();
        return false;
    }
     if (state.selectedIndex < 1)
    {
        window.alert("Please enter state.");
        state.focus();
        return false;
    }

    if (cc_type.selectedIndex < 1)
    {
        window.alert("Please enter credit card type.");
        cc_type.focus();
        return false;
    }
    if (cc_number.value == "")
    {
        window.alert("Please enter credit card number.");
        cc_number.focus();
        return false;
    }
    if (cc_cid.value == "")
    {
        window.alert("Please enter credit card security code.");
        cc_cid.focus();
        return false;
    }
    if (cc_exp_month.selecedIndex < 1)
    {
        window.alert("Please enter expiry date.");
        cc_exp_montht.focus();
        return false;
    }
    if (cc_exp_year.selectedIndex < 1)
    {
        window.alert("Please enter expiry date.");
        cc_exp_year.focus();
        return false;
    }


    return true;
}


</script>

</div>
<?php 

//include_once('footer.php')

?>

它似乎工作正常,但我需要做的是在每个字段验证完成后显示错误消息而不是显示警告框...我怎么能这样做 任何帮助将不胜感激.....提前感谢。

2 个答案:

答案 0 :(得分:2)

答案 1 :(得分:0)

如果你想尝试javascript验证 你可以add div or span with display property none。然后是if error then in that span/div display block and show error in that div/span。请参阅下面的代码。

在HTML中

 <input  style="height:20px; margin-bottom:10px;"  name="name" size="40"/><br/>
<span id="name_error" style="display:none"></span>     

在javascript中

<script>
function ValidateForm()
{
   var name = document.Form.name;

  if(name.value == ''){
    document.getElementById('name_error').innerHTML = 'Please provide name!';
    document.getElementById('name_error').style.display = 'block';        
    name.focus();
    return false;
  }else{
    document.getElementById('name_error').innerHTML = '';
    document.getElementById('name_error').style.display = 'none';        
  }
 }
</script>

请尝试这个,我希望它能为你工作,如果该字段存在错误,那么在该字段中显示错误,否则再次显示无。

Thaks。