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  • javascript/
  • Javascript echo中的a href链接不工作 函数失效（$error）{ //您的错误代码可以转到这里 echo“非常抱歉，您提交的表单存在错误。”； echo“这些错误出现在下面。”； echo$错误。“”； echo“请返回并修复这些错误。”； 模具（）； }

Javascript echo中的a href链接不工作 函数失效（$error）{ //您的错误代码可以转到这里 echo“非常抱歉，您提交的表单存在错误。”； echo“这些错误出现在下面。”； echo$错误。“”； echo“请返回并修复这些错误。”； 模具（）； }

javascript php jquery html

Javascript echo中的a href链接不工作 函数失效（$error）{ //您的错误代码可以转到这里 echo“非常抱歉，您提交的表单存在错误。”； echo“这些错误出现在下面。”； echo$错误。“”； echo“请返回并修复这些错误。”； 模具（）； },javascript,php,jquery,html,Javascript,Php,Jquery,Html,我有一个php发送邮件表单文件。。它包括显示错误的代码。。我想添加一个后退按钮，这样当他们单击它时，页面会返回到html表单页面。当我添加此代码时，php文件停止工作： function died($error) { // your error code can go here echo "We are very sorry, but there were error(s) found with the form you submitted. ";

我有一个php发送邮件表单文件。。它包括显示错误的代码。。我想添加一个后退按钮，这样当他们单击它时，页面会返回到html表单页面。当我添加此代码时，php文件停止工作：

    function died($error) {
        // your error code can go here
        echo "We are very sorry, but there were error(s) found with the form you submitted. ";
        echo "These errors appear below.<br /><br />";
        echo $error."<br /><br />";
        echo "Please go back and fix these errors.<br /><br />";
        die();
    }

echo”“；
问题是什么

这是完整的php代码文件：

echo "<a href="contactus.html">back</a>";


感谢您联系我们。我们将很快与您联系。
这将是

<?php
if(isset($_POST['email'])) {

    // EDIT THE 2 LINES BELOW AS REQUIRED
    $email_to = "email@here.com";
    $email_subject = "Contact Query";


    function died($error) {
        // your error code can go here
        echo "We are very sorry, but there were error(s) found with the form you submitted. ";
        echo "These errors appear below.<br /><br />";
        echo $error."<br /><br />";
        echo "Please go back and fix these errors.<br /><br />";
        echo "<a href="contactus.html">back</a>";
        die();
    }

    // validation expected data exists
    if(!isset($_POST['first_name']) ||
        !isset($_POST['last_name']) ||
        !isset($_POST['email']) ||
        !isset($_POST['telephone']) ||
        !isset($_POST['comments'])) {
        died('We are sorry, but there appears to be a problem with the form you submitted.');       
    }

    $first_name = $_POST['first_name']; // required
    $last_name = $_POST['last_name']; // required
    $email_from = $_POST['email']; // required
    $telephone = $_POST['telephone']; // not required
    $comments = $_POST['comments']; // required

    $error_message = "";
    $email_exp = '/^[A-Za-z0-9._%-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,4}$/';
  if(!preg_match($email_exp,$email_from)) {
    $error_message .= 'The Email Address you entered does not appear to be valid.<br />';
  }
    $string_exp = "/^[A-Za-z .'-]+$/";
  if(!preg_match($string_exp,$first_name)) {
    $error_message .= 'The First Name you entered does not appear to be valid.<br />';
  }
  if(!preg_match($string_exp,$last_name)) {
    $error_message .= 'The Last Name you entered does not appear to be valid.<br />';
  }
  if(strlen($comments) < 2) {
    $error_message .= 'The Comments you entered do not appear to be valid.<br />';
  }
  if(strlen($error_message) > 0) {
    died($error_message);
  }
    $email_message = "Form details below.\n\n";

    function clean_string($string) {
      $bad = array("content-type","bcc:","to:","cc:","href");
      return str_replace($bad,"",$string);
    }

    $email_message .= "First Name: ".clean_string($first_name)."\n";
    $email_message .= "Last Name: ".clean_string($last_name)."\n";
    $email_message .= "Email: ".clean_string($email_from)."\n";
    $email_message .= "Telephone: ".clean_string($telephone)."\n";
    $email_message .= "Comments: ".clean_string($comments)."\n";


// create email headers
$headers = 'From: '.$email_from."\r\n".
'Reply-To: '.$email_from."\r\n" .
'X-Mailer: PHP/' . phpversion();
@mail($email_to, $email_subject, $email_message, $headers);  
?>

<!-- include your own success html here -->
<body bgcolor="#999"> 
<center><div style="color:ffffff;">Thank you for contacting us. We will be in touch with you very soon.</div></center>


 <body>
<?php
}
?>

echo”“；
或

echo”“；
从此处更改

echo "<a href='contactus.html'>back</a>";

echo”“；
到

echo”“；
替换
echo”“带有
echo''
那些
“
需要转义。非常基本的语法

echo "<a href='contactus.html'>back</a>";



echo "<a href="contactus.html">back</a>";



echo "<a href='contactus.html'>back</a>";