关于联系表格 - 编程之家

如何解决关于联系表格

| 好的，我正在尝试获取此表单，如果有人跳过表单上的内容，它将显示出来并告诉他们。我是新手，如果有人不输入信息，我不会理解如何出错。这就是我所拥有的

  <?PHP
 function showForm($strMessage){
echo \"<h1>\".$strMessage.\"</h1>\";
echo \" <p>Note: fields marked with \'*\' are required</p>\\n\";
echo \"<form action=\\\"\".$_SERVER[\'PHP_SELF\'].\"\\\" method=\\\"post\\\">\\n\";
echo \"<table width=\\\"45%\\\" class=\\\"formtable\\\" cellpadding=\\\"3\\\" cellspacing=\\\"0\\\">\\n\";
echo \"  <tr>\\n\";
echo \"      <td><span id=\\\"rfvname\\\">* Name:</span></td>\\n\";
echo \"      <td><input type=\\\"text\\\" name=\\\"name\\\"   value=\\\"\".$_POST[\'name\'].\"\\\"  /></td>\\n\";
echo \"  </tr>\\n\";
echo \"    <tr>\\n\";
echo \"      <td><span id=\\\"rfvemail\\\">* E-mail:</span></td>\\n\";
echo \"      <td><input type=\\\"text\\\" name=\\\"email\\\" value=\\\"\".$_POST[\'emial\'].\"\\\" /></td>\\n\";
echo \"  </tr>\\n\";
echo \"      <tr>\\n\";
echo \"      <td><span id=\\\"rfvusername\\\">* Username:</span></td>\\n\";
echo \"      <td><input type=\\\"text\\\" name=\\\"username\\\" value=\\\"\".$_POST[\'username\'].\"\\\" /></td>\\n\";
echo \"  </tr>\\n\";
echo \"  <tr>\\n\";
echo \"        <td><span id=\\\"rfvpword\\\">* Password:</span></td>\\n\";
echo \"        <td><input type=\\\"password\\\" name=\\\"pword\\\" value=\\\"\".$_POST[\'pword\'].\"\\\" /><br /><span style=\\\"font-size:9px;\\\"><em>(at least 4 chars) </em></span></td>\\n\";
echo \"  </tr>\\n\";
echo \"    <tr>\\n\";
echo \"      <td><span id=\\\"rfvpword\\\">* Re-enter Password:</span></td>\\n\";
echo \"      <td><input type=\\\"text\\\" name=\\\"repword\\\" value=\\\"\".$_POST[\'repword\'].\"\\\" /></td>\\n\";
echo \"  </tr>\\n\";
echo \"  <tr>\\n\";
echo \"         <td>&nbsp;</td>\\n\";
echo \"         <td><input type=\\\"submit\\\" value=\\\"Submit\\\" class=\\\"btnSubmit\\\" id=\\\"btnSubmit\\\" name=\\\"submit\\\" /></td>\\n\";
echo \"  </tr>\\n\";
echo \"</table>\\n\";
echo \"</form>\\n\";
 }
 ?>
 <!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Strict//EN\" \"http://www.w3.org/TR/xhtml1  /DTD/xhtml1-strict.dtd\">
 <html xmlns=\"http://www.w3.org/1999/xhtml\" xml:lang=\"en\" lang=\"en\">
 <head>
 <title>Contact Form</title>
  <style type=\"text/css\">
   body{
        background-color:#FFBD40;
        color:#000000;
        font-size:100%;
        font-family:Georgia,Verdana,\"Times New Roman\",sans-serif;
     }


    #container{
        background:#FFF573;
        width:800px;
        margin:auto;
        padding:5px 10px 5px 10px;
        border:6px double #000000;
      }
       </style>
  </head>
  <body>
  <div id=\"container\">
   <?PHP
   if (isset($_POST[\'submit\'])){
  if (trim($_POST[\'name\'])==\"\"){
    $strMessage=\"Please enter your name!\";
    showForm($strMessage);
   }
   elseif (strlen(trim($_POST[\'pword\']))<=3){
    $strMessage=\"Your password must be at least 4 characters long!\";
    showForm($strMessage);
  }
    else{
     $strMessage=\"Thank you,your information has been submitted. Below is the information you sent:\";
     $strMessageBody.=\"Name: \".trim(stripslashes($_POST[\'name\'])).\"<br />\";
     $strMessageBody.=\"E-mail: \".trim(stripslashes($_POST[\'email\'])).\"<br />\";
     $strMessageBody.=\"UserName: \".trim(stripslashes($_POST[\'username\'])).\"<br />\";
     $strMessageBody.=\"Password: \".trim(stripslashes($_POST[\'pword\'])).\"<br />\";
     $strMessageBody.=\"Re-enter Password: \".trim(stripslashes($_POST[\'repword\'])).\"<br />\";
    echo \"<h1>\".$strMessage.\"</h1>\";
    echo $strMessageBody;
}
   }
 else{
$strMessage= \"Please fill out the form below to send your information:\";
showForm($strMessage);
}
   ?>PHP
    $$errors = array();
    if (isset($_REQUEST[\"seen_already\"])){
    validate_data();
    if(count($errors) ! = 0){
    display_errors();
    display_welcome();
    } else {
    display_welsome();
    }
    function validate_data()
    {
    global $errors;
    if($_REQUEST[\"Name\"]==\"\"){
    $errors[] = \"<FONT COLOR=\'RED\'>Please enter your first name</FONT>\";
    }
    if($_REQUEST[\"E-mail\"]==\"\"){
    $error[] = \"<FONT COLOR=\'RED\'>Please enter your E-Mail>/FONT>\";
    }
    if($_REQUEST[\"UserName\"]==\"\"){
            $errors[] = \"<FONT COLOR=\'RED\'>Please enter your Username</FONT>\";
    }
    if($_REQUEST[\"Password\"]==\"\"){
            $errors[] = \"<FONT COLOR=\'RED\'>Please enter your Password</FONT>\";
    }
    if($_REQUEST[\"RE-enter Password\"]==\"\"){
            $errors[] = \"<FONT COLOR=\'RED\'>Please  re-enter your Password</FONT>\";
    }
   }
   function display_errors()
   {
      global $errors;

      foreach($errors as $err){
        echo $err,\"<BR>\";
        }
      }
      function process_data()


 </div>
  </body>
  </html>

好吧，echo \'s和\“和\\是我必须全部设置的方式。所以应该看起来像这样。我要问的是，是否有人可以帮助我理解如何执行错误代码。不是为我做这件事，而是要帮助我理解它。我已经开始使用的代码是否可以正常工作或者是我搞砸了？感谢所有拒绝我的人。我只是在问一个简单的问题。

解决方法

您的问题是这样的：

 $_REQUEST[\"RE-enter Password\"]

您将文本标签用于表单字段。但是您的实际输入字段称为：

 $_REQUEST[\"repword\"]

其他所有领域也是如此。 “ 3”数组根据HTML表单中的“ 4”属性来保存键。其他：您还可以简化表单输出。您应该使用Heredoc字符串来代替许多ѭ5，以避免许多\"引号和\\反斜杠转义：

echo <<<HTML
 <h1>$strMessage</h1>
 <p>Note: fields marked with \'*\' are required</p>
 <form action=\"$_SERVER[PHP_SELF]\" method=\"post\">
 <table ...
      <td><span id=\"rfvname\">* Name:</span></td>
     <td><input type=\"text\" name=\"name\"   value=\"$_POST[name]\"></td>
 ...
HTML;

在此之前还要加上ѭ9（以简化/安全起见）。