PHP表单 - 提交时清除表单 - 重置它 [英] php form - clear form on submission - reset it
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问题描述
我有下面的表单可以使用。但是如果用户点击刷新，它会在每次刷新时重复发送表单。如何在刷新时清除表单以便再次填写？
谢谢
PHP
这是一个简单的联系表单
< style>
.error_message {color：＃cc0000;}
.form1 {}
.form2 {display：none;}
#succsess_page h1 {background：url（'http：// example.com/img/ok.png')left no-repeat; padding-left：40px; color：＃45a015; }
< / style>
<？php
//字段
$ honeypot ='';
$ error ='';
$ name ='';
$ email ='';
$ comments ='';
if（isset（$ _ POST ['contactus']））{
$ honeypot = $ _POST ['email_confirm'];
$ name = $ _POST ['name'];
$ email = $ _POST ['email'];
$ comments = $ _POST ['comments'];
//蜜罐
if（$ honeypot）
exit（1）;
//错误信息
if（trim（$ name）==''）{
$ error ='< div class =error_message> ;需要你的名字< / div>';
} else if（trim（$ email）==''）{
$ error ='< div class =error_message>需要您的电子邮件< / div>';
} else if（！isEmail（$ email））{
$ error ='< div class =error_message>需要有效的电子邮件< / div>';
} else if（trim（$ comments）==''）{
$ error ='< div class =error_message>需要消息< / div>;
if（$ error ==''）{
if（get_magic_quotes_gpc（））{
$ comments = stripslashes（$ comments）;
}
//电子邮件地址
$地址=email@example.com;
//电子邮件消息
$ e_subject ='网络消息来自：'。 $名称。 。;
$ e_body =From：$ name\\\
Email：$ email \r\\\
\\\
Message：\\\
$ comments\\\
\\\
\\\
;
$ msg = $ e_body。 $ e_content。 $ e_reply;
if（mail（$ address，$ e_subject，$ msg，From：$ email\r\\\
Reply -To：$ email\r\\\
Return-Path：$ email\r\\\
））
{
//成功html页面响应
echo< div id ='succsess_page'>;
回显< h1>电子邮件已成功发送。< / h1>;
echo< p>感谢您< strong> $ name< / strong>，您的讯息已提交。< / p>;
回显< / div>;
}其他回显错误。邮件未发送;
}
if（！isset（$ _ POST ['contactus']）|| $ error！=''）//不要编辑。
{
？>
<？php echo $ error; ？>
<！ - form - >
< form method =postaction =>
< p class =form1>名称：< input name =nametype =textid =namesize =30value =<？php echo $ name;？>的onblur = TOUPPER（THIS.VALUE）; />< / p为H.
< p class =form1>电子邮件：< input name =emailtype =textid =emailsize =30value =<？php echo $ email;？> />< / p为H.
< p class =form2>确认电子邮件地址：< input name =email_confirmtype =textid =email_confirmsize =30value =<？php echo $ email_confirm ;？> />< / p为H.
< p class =form1>消息：< textarea name =commentscols =40rows =3id =comments> $意见; ？>< / textarea的>< / p为H.
< p class =form1>< input name =contactustype =submitclass =submitid =contactusvalue =Submit/><< ; / p为H.
< / form>
<！ - 结束表单 - >
<？php}
函数isEmail（$ email）{//电子邮件地址验证，请勿编辑。
return（preg_match（/ ^ [_ a-z0-9 - ] +（\。[_ a-z0-9 - ] +）* @ [a-z0-9 - ] +（\。[一个-Z0-9 - ] +）*（\ [AZ] {2,12}）$ /，$电子邮件））;
}
？>
<！ - > - 首字母大写输入名称---->
< script>
函数toUpper（mystring）{
var sp = mystring.split（''）;
var wl = 0;
var f，r;
var word = new Array（）;
for（i = 0; i
r = sp [i] .substring（1）;
word [i] = f + r;
}
newstring = word.join（''）;
document.getElementById（'name'）。value = newstring;
返回true;
}
< / script>
解决方案
插入数据后，您可以使用以下方法重定向页面：
header（'Location：'。$ _ SERVER ['PHP_SELF']）;
重定向后，整个页面将被重新加载，刷新不会导致数据再次被插入。
if（isset（$ _ POST ['contactus']））{
$ honeypot = $ _POST [ 'email_confirm'];
$ name = $ _POST ['name'];
$ email = $ _POST ['email'];
$ comments = $ _POST ['comments'];
//蜜罐
if（$ honeypot）
exit（1）;
//错误信息
if（trim（$ name）==''）{
$ error ='< div class =error_message> ;需要你的名字< / div>';
} else if（trim（$ email）==''）{
$ error ='< div class =error_message>需要您的电子邮件< / div>';
} else if（！isEmail（$ email））{
$ error ='< div class =error_message>需要一个有效的电子邮件< / div>';
} else if（trim（$ comments）==''）{
$ error ='< div class =error_message>需要消息< / div>;
if（$ error ==''）{
if（get_magic_quotes_gpc（））{
$ comments = stripslashes（$ comments）;
}
//电子邮件地址
$地址=email@example.com;
//电子邮件消息
$ e_subject ='网络消息来自：'。 $名称。 。;
$ e_body =From：$ name\\\
Email：$ email \r\\\
\\\
Message：\\\
$ comments\\\
\\\
\\\
;
$ msg = $ e_body。 $ e_content。 $ e_reply;
if（mail（$ address，$ e_subject，$ msg，From：$ email\r\\\
Reply -To：$ email\r\\\
Return-Path：$ email\r\\\
））
{
//成功html页面响应
echo< div id ='succsess_page'>;
回显< h1>电子邮件已成功发送。< / h1>;
echo< p>感谢您< strong> $ name< / strong>，您的邮件已被提交。< / p>;
回显< / div>;
}其他回显错误。邮件未发送;
}
header（'Location：'。$ _ SERVER ['PHP_SELF']）;
}
I have the following form that works. But if a user was to click refresh, it resends the form over and over on each refresh. How can I clear the form on refresh so that it is required to fill out again?
Thanks
PHP
This is a simple contact form
<style>
.error_message{color:#cc0000;}
.form1{}
.form2{display:none;}
#succsess_page h1{background:url('http://example.com/img/ok.png')left no-repeat;padding-left:40px;color:#45a015; }
</style>
<?php
//fields
$honeypot = '';
$error = '';
$name = '';
$email = '';
$comments = '';
if(isset($_POST['contactus'])) {
$honeypot = $_POST['email_confirm'];
$name = $_POST['name'];
$email = $_POST['email'];
$comments = $_POST['comments'];
// honeypot
if($honeypot)
exit(1);
//error messages
if(trim($name) == '') {
$error = '<div class="error_message">Need your name</div>';
} else if(trim($email) == '') {
$error = '<div class="error_message">Need your email</div>';
} else if(!isEmail($email)) {
$error = '<div class="error_message">Need a valid email</div>';
} else if(trim($comments) == '') {
$error = '<div class="error_message">A message is required</div>';
}
if($error == '') {
if(get_magic_quotes_gpc()) {
$comments = stripslashes($comments);
}
//email address
$address = "email@example.com";
//email message
$e_subject = 'Web Message from: ' . $name . '.';
$e_body = "From: $name\nEmail: $email \r\n\nMessage:\n$comments\n\n\n";
$msg = $e_body . $e_content . $e_reply;
if(mail($address, $e_subject, $msg, "From: $email\r\nReply-To: $email\r\nReturn-Path: $email\r\n"))
{
//success html page response
echo "<div id='succsess_page'>";
echo "<h1>Email Sent Successfully.</h1>";
echo "<p>Thank you <strong>$name</strong> , your message has been submitted. </p>";
echo "</div>";
} else echo "Error. Mail not sent";
}
}
if(!isset($_POST['contactus']) || $error != '') // Do not edit.
{
?>
<?php echo $error; ?>
<!--form-->
<form method="post" action="">
<p class="form1">Name: <input name="name" type="text" id="name" size="30" value="<?php echo $name; ?>" onblur="toUpper(this.value);" /></p>
<p class="form1">Email: <input name="email" type="text" id="email" size="30" value="<?php echo $email; ?>" /></p>
<p class="form2">Confirm Email: <input name="email_confirm" type="text" id="email_confirm" size="30" value="<?php echo $email_confirm; ?>" /></p>
<p class="form1">Message: <textarea name="comments" cols="40" rows="3" id="comments"><?php echo $comments; ?></textarea></p>
<p class="form1"><input name="contactus" type="submit" class="submit" id="contactus" value="Submit" /></p>
</form>
<!--end form-->
<?php }
function isEmail($email) { // Email address verification, do not edit.
return(preg_match("/^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,12})$/",$email));
}
?>
<!------- capitalize first letter Name input ---->
<script>
function toUpper(mystring) {
var sp = mystring.split(' ');
var wl=0;
var f ,r;
var word = new Array();
for (i = 0 ; i < sp.length ; i ++ ) {
f = sp[i].substring(0,1).toUpperCase();
r = sp[i].substring(1);
word[i] = f+r;
}
newstring = word.join(' ');
document.getElementById('name').value = newstring;
return true;
}
</script>
解决方案
You can redirect the page after inserting the data using :
header('Location:'.$_SERVER['PHP_SELF']);
After redirecting, the whole page will be reloaded and refreshing won't cause data to be inserted again.
if(isset($_POST['contactus'])) {
$honeypot = $_POST['email_confirm'];
$name = $_POST['name'];
$email = $_POST['email'];
$comments = $_POST['comments'];
// honeypot
if($honeypot)
exit(1);
//error messages
if(trim($name) == '') {
$error = '<div class="error_message">Need your name</div>';
} else if(trim($email) == '') {
$error = '<div class="error_message">Need your email</div>';
} else if(!isEmail($email)) {
$error = '<div class="error_message">Need a valid email</div>';
} else if(trim($comments) == '') {
$error = '<div class="error_message">A message is required</div>';
}
if($error == '') {
if(get_magic_quotes_gpc()) {
$comments = stripslashes($comments);
}
//email address
$address = "email@example.com";
//email message
$e_subject = 'Web Message from: ' . $name . '.';
$e_body = "From: $name\nEmail: $email \r\n\nMessage:\n$comments\n\n\n";
$msg = $e_body . $e_content . $e_reply;
if(mail($address, $e_subject, $msg, "From: $email\r\nReply-To: $email\r\nReturn-Path: $email\r\n"))
{
//success html page response
echo "<div id='succsess_page'>";
echo "<h1>Email Sent Successfully.</h1>";
echo "<p>Thank you <strong>$name</strong> , your message has been submitted. </p>";
echo "</div>";
} else echo "Error. Mail not sent";
}
header('Location:'.$_SERVER['PHP_SELF']);
}
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