【发布时间】：2012-03-10 06:53:12
【问题描述】：
我已经在这里和其他网站上挖掘了一段时间，但被卡住了。我正在尝试使用 jQuery 来验证我的表单（同时在用户填写表单时），如果表单有效，请将其提交到我创建的用于处理表单内容的 php 页面。我已经能够让它验证，但我不能让它也提交它......如果我为表单操作参数输入一个值，那么它会绕过验证。请帮忙...
对于糟糕的编码，我提前道歉。 这是我的 jquery-validate.js：
//global vars
var form = $("#customForm");
var name = $("#name");
var nameInfo = $("#nameInfo");
var email = $("#email");
var emailInfo = $("#emailInfo");
var pass1 = $("#pass1");
var pass1Info = $("#pass1Info");
var pass2 = $("#pass2");
var pass2Info = $("#pass2Info");
var message = $("#message");
function validateName(){
//if it's NOT valid
if(name.val().length < 4){
name.addClass("error");
nameInfo.text("We want names with more than 3 letters!");
nameInfo.addClass("error");
return false;
}
//if it's valid
else{
name.removeClass("error");
nameInfo.text("What's your name?");
nameInfo.removeClass("error");
return true;
}
}
function validatePass1(){
var a = $("#password1");
var b = $("#password2");
//it's NOT valid
if(pass1.val().length <5){
pass1.addClass("error");
pass1Info.text("Ey! Remember: At least 5 characters: letters, numbers and '_'");
pass1Info.addClass("error");
return false;
}
//it's valid
else{
pass1.removeClass("error");
pass1Info.text("At least 5 characters: letters, numbers and '_'");
pass1Info.removeClass("error");
validatePass2();
return true;
}
}
function validatePass2(){
var a = $("#password1");
var b = $("#password2");
//are NOT valid
if( pass1.val() != pass2.val() ){
pass2.addClass("error");
pass2Info.text("Passwords doesn't match!");
pass2Info.addClass("error");
return false;
}
//are valid
else{
pass2.removeClass("error");
pass2Info.text("Confirm password");
pass2Info.removeClass("error");
return true;
}
}
function validateMessage(){
//it's NOT valid
if(message.val().length < 10){
message.addClass("error");
return false;
}
//it's valid
else{
message.removeClass("error");
return true;
}
}
/*
Validate the name field in: blur and keyup events.
Validate the email field in: blur event.
Validate the password fields in: blur and keyup events.
Validate the message field in: blur, and keyup event.
Validate all fields in: submit form event
*/
//On blur
name.blur(validateName);
email.blur(validateEmail);
pass1.blur(validatePass1);
pass2.blur(validatePass2);
//On key press
name.keyup(validateName);
pass1.keyup(validatePass1);
pass2.keyup(validatePass2);
message.keyup(validateMessage);
//On Submitting
form.submit(function(){
if(validateName() && validateEmail() && validatePass1() && validatePass2() && validateMessage())
return true;
else
return false;
});
我的表单代码粘贴在这里：
<form method="post" id="customForm" action="rcv-form1.php">
<div>
<label for="name">Name</label>
<input id="name" name="name" type="text" />
<span id="nameInfo">What's your name?</span>
</div>
<div>
<label for="email">E-mail</label>
<input id="email" name="email" type="text" />
<span id="emailInfo">Valid E-mail please, you will need it to log in!</span>
</div>
<div>
<label for="pass1">Password</label>
<input id="pass1" name="pass1" type="password" />
<span id="pass1Info">At least 5 characters: letters, numbers and '_'</span>
</div>
<div>
<label for="pass2">Confirm Password</label>
<input id="pass2" name="pass2" type="password" />
<span id="pass2Info">Confirm password</span>
</div>
<div>
<label for="message">Message</label>
<textarea id="message" name="message" cols="" rows=""></textarea>
</div>
<div>
<input id="send" name="send" type="submit" value="Send" />
</div>
</form>
这是接收表单的我的 php（这只是为了测试。一旦我知道我可以正确验证内容，我将通过电子邮件发送或插入到 mySQL）：
<html><head>
<title>Display form values</title>
</head>
<body>
<?
//$valid_form = TRUE;
//$bad_field_count = 0;
$table1_beg = '<center><table align="center" bordercolor="#F00" width="600px" border="3" cellspacing="1" cellpadding="1"><caption>Form status</caption><tr><th scope="col">Field Name</th><th scope="col">Field Value</th></tr>';
$row_beg = '<tr><td>';
$td = '</td><td>';
$row_end = '</td></tr>';
$table1_end = '</table></center>';
function checkEmail($field)
{
if (filter_var($field, FILTER_VALIDATE_EMAIL)) {
//echo "This ($field) email address is considered valid.";
return $field;
} else {
$field = filter_var($field, FILTER_SANITIZE_EMAIL);
//global $bad_field_count; $bad_field_count++;
return $field;
}
}
function SanitizeString($field)
{
$field = filter_var($field, FILTER_SANITIZE_STRING);
//if(is_null($field) || $field == '') { global $bad_field_count; $bad_field_count++;}
return $field;
}
// ensure form data is valid
$name=SanitizeString($_POST['name']);
//$email=$_POST['email'];
$email = checkEmail($_POST['email']);
$pass1=SanitizeString($_POST['pass1']);
$pass2=SanitizeString($_POST['pass2']);
$message=SanitizeString($_POST['message']);
echo $table1_beg;
echo $row_beg . "Name" . $td . "<u>" . $name . "</u>" . $row_end;
echo $row_beg . "Email" . $td . "<u>" . $email . "</u>" . $row_end;
echo $row_beg . "Password 1" . $td . "<u>" . $pass1 . "</u>" . $row_end;
echo $row_beg . "Password 2" . $td . "<u>" . $pass2 . "</u>" . $row_end;
echo $row_beg . "Message" . $td . "<u>" . nl2br($message) . "</u>" . $row_end;
//echo $row_beg . "Number of bad fields" . $td . "<b>" . $bad_field_count . "</b>" . $row_end;
echo $table1_end;
//}
?>
</body></html>
问题 1：当我有表单 action="" 时，我只能在点击提交后验证表单......它并没有说它是无效的，直到提交后我认为它应该在输入时同时执行。
问题 2：如果我将表单操作设置为除 "" 之外的任何内容，它将一起忽略 jQuery 验证。
我是表单验证的新手。有人可以指出我正确的方向吗？提前谢谢！
【问题讨论】：
-
为什么不在输入标签内使用 onBlur？
-
您也应该将其引用为 form.name.blur(..)
-
哇，为什么不创建一个具有不同验证规则的函数|对象，它返回
true|false并接受文本字符串并设置错误样式？这样您就可以将代码减少至少一半并保持干燥。
标签： php jquery validation form-submit