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Php 如何限制每条邮件的字符数并进行反垃圾邮件？

php jquery ajax

Php 如何限制每条邮件的字符数并进行反垃圾邮件？,php,jquery,ajax,Php,Jquery,Ajax,我有这个showbox脚本。 我想知道如何将每条消息的字符限制为70个字符。 我也想知道如何做到这一点，你必须等待3秒之间的每一条消息，你张贴 <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <title>jQuery</title> <style type="text/css"> #daddy-shoutbox { paddi

我有这个showbox脚本。 我想知道如何将每条消息的字符限制为70个字符。 我也想知道如何做到这一点，你必须等待3秒之间的每一条消息，你张贴

  <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<title>jQuery</title>
  <style type="text/css">
    #daddy-shoutbox {
    padding: 5px;
    background: #FFF;
    color: #000;
    width: 250px;
    font-family: Arial,Helvetica,sans-serif;
    font-size: 11px;
    }
    .shoutbox-list {
    border-bottom: 1px solid #000;
    padding: 5px;
    display: none;
    }
    #daddy-shoutbox-list {
      text-align: left;
      margin: 0px auto;
    }
    #daddy-shoutbox-form {
      text-align: left;

    }
    .shoutbox-list-time {
    color: #000;
    }
    .shoutbox-list-nick {
      margin-left: 5px;
      font-weight: bold;
    }
    .shoutbox-list-message {
      margin-left: 5px;
    }

  </style>
<script type="text/javascript" src="js/jquery.js"></script>
  <script type="text/javascript" src="js/jquery.form.js"></script>
</head>
  <body>


  <div id="daddy-shoutbox">   
  <table cellpadding="3" cellspacing="0">

<form id="daddy-shoutbox-form" action="demos/jquery-shoutbox/daddy-shoutbox.php?action=add" method="post"> 
  <tr> 
  <td>    
    Name: 
    <input type="text" name="nickname" /> 
  </td>
  </tr>
    <tr> 
  <td> 
  Message: 
  <input type="text" name="message" />
 <br /> <br />
    <input type="submit" value="Submit" />
    <span id="daddy-shoutbox-response"></span>
  </form> 
    </td>
  </tr>
</table>
    <hr size="1" noshade />
    <div id="daddy-shoutbox-list"></div>
    <br />

  </div>

  <script type="text/javascript">
        var count = 0;
        var files = 'demos/jquery-shoutbox/';
        var lastTime = 0;

        function prepare(response) {
          var d = new Date();
          count++;
          d.setTime(response.time*1000);
          var mytime = d.getHours()+':'+d.getMinutes()+':'+d.getSeconds();
          var string = '<div class="shoutbox-list" id="list-'+count+'">'
              + '<span class="shoutbox-list-time">'+mytime+'</span>'
              + '<span class="shoutbox-list-nick">'+response.nickname+':</span>'
              + '<span class="shoutbox-list-message">'+response.message+'</span>'
              +'</div>';
          if (count > 11) { x = (count - 11); $('#list-' + x).fadeOut('slow'); x = document.getElementById('list-' + x); x.style.display = "none"; }
          return string;
        }

        function success(response, status)  { 
          if(status == 'success') {
            lastTime = response.time;
            $('#daddy-shoutbox-response').html('<img src="'+files+'images/accept.png" />');
            $('#daddy-shoutbox-list').prepend(prepare(response));
            $('input[@name=message]').attr('value', '').focus();
            $('#list-'+count).fadeIn('slow');
            timeoutID = setTimeout(refresh, 3000);
          }
        }

        function validate(formData, jqForm, options) {
          for (var i=0; i < formData.length; i++) { 
              if (!formData[i].value) {
                  alert('Please fill in all the fields'); 
                  $('input[@name='+formData[i].name+']').css('background', 'red');
                  return false; 
              } 
          } 
          $('#daddy-shoutbox-response').html('<img src="'+files+'images/loader.gif" />');
          clearTimeout(timeoutID);
        }

        function refresh() {
          $.getJSON(files+"daddy-shoutbox.php?action=view&time="+lastTime, function(json) {
            if(json.length) {
              for(i=0; i < json.length; i++) {
                $('#daddy-shoutbox-list').prepend(prepare(json[i]));
                $('#list-' + count).fadeIn('slow');
              }
              var j = i-1;
              lastTime = json[j].time;
            }
            //alert(lastTime);
          });
          timeoutID = setTimeout(refresh, 3000);
        }

        // wait for the DOM to be loaded 
        $(document).ready(function() { 
            var options = { 
              dataType:       'json',
              beforeSubmit:   validate,
              success:        success
            }; 
            $('#daddy-shoutbox-form').ajaxForm(options);
            timeoutID = setTimeout(refresh, 100);
        });
  </script>
</body>
</html>
这是我的剧本

  <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<title>jQuery</title>
  <style type="text/css">
    #daddy-shoutbox {
    padding: 5px;
    background: #FFF;
    color: #000;
    width: 250px;
    font-family: Arial,Helvetica,sans-serif;
    font-size: 11px;
    }
    .shoutbox-list {
    border-bottom: 1px solid #000;
    padding: 5px;
    display: none;
    }
    #daddy-shoutbox-list {
      text-align: left;
      margin: 0px auto;
    }
    #daddy-shoutbox-form {
      text-align: left;

    }
    .shoutbox-list-time {
    color: #000;
    }
    .shoutbox-list-nick {
      margin-left: 5px;
      font-weight: bold;
    }
    .shoutbox-list-message {
      margin-left: 5px;
    }

  </style>
<script type="text/javascript" src="js/jquery.js"></script>
  <script type="text/javascript" src="js/jquery.form.js"></script>
</head>
  <body>


  <div id="daddy-shoutbox">   
  <table cellpadding="3" cellspacing="0">

<form id="daddy-shoutbox-form" action="demos/jquery-shoutbox/daddy-shoutbox.php?action=add" method="post"> 
  <tr> 
  <td>    
    Name: 
    <input type="text" name="nickname" /> 
  </td>
  </tr>
    <tr> 
  <td> 
  Message: 
  <input type="text" name="message" />
 <br /> <br />
    <input type="submit" value="Submit" />
    <span id="daddy-shoutbox-response"></span>
  </form> 
    </td>
  </tr>
</table>
    <hr size="1" noshade />
    <div id="daddy-shoutbox-list"></div>
    <br />

  </div>

  <script type="text/javascript">
        var count = 0;
        var files = 'demos/jquery-shoutbox/';
        var lastTime = 0;

        function prepare(response) {
          var d = new Date();
          count++;
          d.setTime(response.time*1000);
          var mytime = d.getHours()+':'+d.getMinutes()+':'+d.getSeconds();
          var string = '<div class="shoutbox-list" id="list-'+count+'">'
              + '<span class="shoutbox-list-time">'+mytime+'</span>'
              + '<span class="shoutbox-list-nick">'+response.nickname+':</span>'
              + '<span class="shoutbox-list-message">'+response.message+'</span>'
              +'</div>';
          if (count > 11) { x = (count - 11); $('#list-' + x).fadeOut('slow'); x = document.getElementById('list-' + x); x.style.display = "none"; }
          return string;
        }

        function success(response, status)  { 
          if(status == 'success') {
            lastTime = response.time;
            $('#daddy-shoutbox-response').html('<img src="'+files+'images/accept.png" />');
            $('#daddy-shoutbox-list').prepend(prepare(response));
            $('input[@name=message]').attr('value', '').focus();
            $('#list-'+count).fadeIn('slow');
            timeoutID = setTimeout(refresh, 3000);
          }
        }

        function validate(formData, jqForm, options) {
          for (var i=0; i < formData.length; i++) { 
              if (!formData[i].value) {
                  alert('Please fill in all the fields'); 
                  $('input[@name='+formData[i].name+']').css('background', 'red');
                  return false; 
              } 
          } 
          $('#daddy-shoutbox-response').html('<img src="'+files+'images/loader.gif" />');
          clearTimeout(timeoutID);
        }

        function refresh() {
          $.getJSON(files+"daddy-shoutbox.php?action=view&time="+lastTime, function(json) {
            if(json.length) {
              for(i=0; i < json.length; i++) {
                $('#daddy-shoutbox-list').prepend(prepare(json[i]));
                $('#list-' + count).fadeIn('slow');
              }
              var j = i-1;
              lastTime = json[j].time;
            }
            //alert(lastTime);
          });
          timeoutID = setTimeout(refresh, 3000);
        }

        // wait for the DOM to be loaded 
        $(document).ready(function() { 
            var options = { 
              dataType:       'json',
              beforeSubmit:   validate,
              success:        success
            }; 
            $('#daddy-shoutbox-form').ajaxForm(options);
            timeoutID = setTimeout(refresh, 100);
        });
  </script>
</body>
</html>
Index.html 

  <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<title>jQuery</title>
  <style type="text/css">
    #daddy-shoutbox {
    padding: 5px;
    background: #FFF;
    color: #000;
    width: 250px;
    font-family: Arial,Helvetica,sans-serif;
    font-size: 11px;
    }
    .shoutbox-list {
    border-bottom: 1px solid #000;
    padding: 5px;
    display: none;
    }
    #daddy-shoutbox-list {
      text-align: left;
      margin: 0px auto;
    }
    #daddy-shoutbox-form {
      text-align: left;

    }
    .shoutbox-list-time {
    color: #000;
    }
    .shoutbox-list-nick {
      margin-left: 5px;
      font-weight: bold;
    }
    .shoutbox-list-message {
      margin-left: 5px;
    }

  </style>
<script type="text/javascript" src="js/jquery.js"></script>
  <script type="text/javascript" src="js/jquery.form.js"></script>
</head>
  <body>


  <div id="daddy-shoutbox">   
  <table cellpadding="3" cellspacing="0">

<form id="daddy-shoutbox-form" action="demos/jquery-shoutbox/daddy-shoutbox.php?action=add" method="post"> 
  <tr> 
  <td>    
    Name: 
    <input type="text" name="nickname" /> 
  </td>
  </tr>
    <tr> 
  <td> 
  Message: 
  <input type="text" name="message" />
 <br /> <br />
    <input type="submit" value="Submit" />
    <span id="daddy-shoutbox-response"></span>
  </form> 
    </td>
  </tr>
</table>
    <hr size="1" noshade />
    <div id="daddy-shoutbox-list"></div>
    <br />

  </div>

  <script type="text/javascript">
        var count = 0;
        var files = 'demos/jquery-shoutbox/';
        var lastTime = 0;

        function prepare(response) {
          var d = new Date();
          count++;
          d.setTime(response.time*1000);
          var mytime = d.getHours()+':'+d.getMinutes()+':'+d.getSeconds();
          var string = '<div class="shoutbox-list" id="list-'+count+'">'
              + '<span class="shoutbox-list-time">'+mytime+'</span>'
              + '<span class="shoutbox-list-nick">'+response.nickname+':</span>'
              + '<span class="shoutbox-list-message">'+response.message+'</span>'
              +'</div>';
          if (count > 11) { x = (count - 11); $('#list-' + x).fadeOut('slow'); x = document.getElementById('list-' + x); x.style.display = "none"; }
          return string;
        }

        function success(response, status)  { 
          if(status == 'success') {
            lastTime = response.time;
            $('#daddy-shoutbox-response').html('<img src="'+files+'images/accept.png" />');
            $('#daddy-shoutbox-list').prepend(prepare(response));
            $('input[@name=message]').attr('value', '').focus();
            $('#list-'+count).fadeIn('slow');
            timeoutID = setTimeout(refresh, 3000);
          }
        }

        function validate(formData, jqForm, options) {
          for (var i=0; i < formData.length; i++) { 
              if (!formData[i].value) {
                  alert('Please fill in all the fields'); 
                  $('input[@name='+formData[i].name+']').css('background', 'red');
                  return false; 
              } 
          } 
          $('#daddy-shoutbox-response').html('<img src="'+files+'images/loader.gif" />');
          clearTimeout(timeoutID);
        }

        function refresh() {
          $.getJSON(files+"daddy-shoutbox.php?action=view&time="+lastTime, function(json) {
            if(json.length) {
              for(i=0; i < json.length; i++) {
                $('#daddy-shoutbox-list').prepend(prepare(json[i]));
                $('#list-' + count).fadeIn('slow');
              }
              var j = i-1;
              lastTime = json[j].time;
            }
            //alert(lastTime);
          });
          timeoutID = setTimeout(refresh, 3000);
        }

        // wait for the DOM to be loaded 
        $(document).ready(function() { 
            var options = { 
              dataType:       'json',
              beforeSubmit:   validate,
              success:        success
            }; 
            $('#daddy-shoutbox-form').ajaxForm(options);
            timeoutID = setTimeout(refresh, 100);
        });
  </script>
</body>
</html>
为了提高速度，您可以在客户端强制执行这些限制，但需要在服务器端应用这些限制。否则，有人可以下载您的表单，删除限制，并使用它而不受限制。您已经为我们提供了客户端代码，因此我们无法为您提供多少帮助

  <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<title>jQuery</title>
  <style type="text/css">
    #daddy-shoutbox {
    padding: 5px;
    background: #FFF;
    color: #000;
    width: 250px;
    font-family: Arial,Helvetica,sans-serif;
    font-size: 11px;
    }
    .shoutbox-list {
    border-bottom: 1px solid #000;
    padding: 5px;
    display: none;
    }
    #daddy-shoutbox-list {
      text-align: left;
      margin: 0px auto;
    }
    #daddy-shoutbox-form {
      text-align: left;

    }
    .shoutbox-list-time {
    color: #000;
    }
    .shoutbox-list-nick {
      margin-left: 5px;
      font-weight: bold;
    }
    .shoutbox-list-message {
      margin-left: 5px;
    }

  </style>
<script type="text/javascript" src="js/jquery.js"></script>
  <script type="text/javascript" src="js/jquery.form.js"></script>
</head>
  <body>


  <div id="daddy-shoutbox">   
  <table cellpadding="3" cellspacing="0">

<form id="daddy-shoutbox-form" action="demos/jquery-shoutbox/daddy-shoutbox.php?action=add" method="post"> 
  <tr> 
  <td>    
    Name: 
    <input type="text" name="nickname" /> 
  </td>
  </tr>
    <tr> 
  <td> 
  Message: 
  <input type="text" name="message" />
 <br /> <br />
    <input type="submit" value="Submit" />
    <span id="daddy-shoutbox-response"></span>
  </form> 
    </td>
  </tr>
</table>
    <hr size="1" noshade />
    <div id="daddy-shoutbox-list"></div>
    <br />

  </div>

  <script type="text/javascript">
        var count = 0;
        var files = 'demos/jquery-shoutbox/';
        var lastTime = 0;

        function prepare(response) {
          var d = new Date();
          count++;
          d.setTime(response.time*1000);
          var mytime = d.getHours()+':'+d.getMinutes()+':'+d.getSeconds();
          var string = '<div class="shoutbox-list" id="list-'+count+'">'
              + '<span class="shoutbox-list-time">'+mytime+'</span>'
              + '<span class="shoutbox-list-nick">'+response.nickname+':</span>'
              + '<span class="shoutbox-list-message">'+response.message+'</span>'
              +'</div>';
          if (count > 11) { x = (count - 11); $('#list-' + x).fadeOut('slow'); x = document.getElementById('list-' + x); x.style.display = "none"; }
          return string;
        }

        function success(response, status)  { 
          if(status == 'success') {
            lastTime = response.time;
            $('#daddy-shoutbox-response').html('<img src="'+files+'images/accept.png" />');
            $('#daddy-shoutbox-list').prepend(prepare(response));
            $('input[@name=message]').attr('value', '').focus();
            $('#list-'+count).fadeIn('slow');
            timeoutID = setTimeout(refresh, 3000);
          }
        }

        function validate(formData, jqForm, options) {
          for (var i=0; i < formData.length; i++) { 
              if (!formData[i].value) {
                  alert('Please fill in all the fields'); 
                  $('input[@name='+formData[i].name+']').css('background', 'red');
                  return false; 
              } 
          } 
          $('#daddy-shoutbox-response').html('<img src="'+files+'images/loader.gif" />');
          clearTimeout(timeoutID);
        }

        function refresh() {
          $.getJSON(files+"daddy-shoutbox.php?action=view&time="+lastTime, function(json) {
            if(json.length) {
              for(i=0; i < json.length; i++) {
                $('#daddy-shoutbox-list').prepend(prepare(json[i]));
                $('#list-' + count).fadeIn('slow');
              }
              var j = i-1;
              lastTime = json[j].time;
            }
            //alert(lastTime);
          });
          timeoutID = setTimeout(refresh, 3000);
        }

        // wait for the DOM to be loaded 
        $(document).ready(function() { 
            var options = { 
              dataType:       'json',
              beforeSubmit:   validate,
              success:        success
            }; 
            $('#daddy-shoutbox-form').ajaxForm(options);
            timeoutID = setTimeout(refresh, 100);
        });
  </script>
</body>
</html>
如果你的站点没有实现某种登录系统，它可能应该这样做。这是识别谁在做什么的最好方法（因此，如果他们在做类似垃圾邮件的事情，你可以让他们停止）。

要限制客户端的字符数，我认为
应该可以


  <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<title>jQuery</title>
  <style type="text/css">
    #daddy-shoutbox {
    padding: 5px;
    background: #FFF;
    color: #000;
    width: 250px;
    font-family: Arial,Helvetica,sans-serif;
    font-size: 11px;
    }
    .shoutbox-list {
    border-bottom: 1px solid #000;
    padding: 5px;
    display: none;
    }
    #daddy-shoutbox-list {
      text-align: left;
      margin: 0px auto;
    }
    #daddy-shoutbox-form {
      text-align: left;

    }
    .shoutbox-list-time {
    color: #000;
    }
    .shoutbox-list-nick {
      margin-left: 5px;
      font-weight: bold;
    }
    .shoutbox-list-message {
      margin-left: 5px;
    }

  </style>
<script type="text/javascript" src="js/jquery.js"></script>
  <script type="text/javascript" src="js/jquery.form.js"></script>
</head>
  <body>


  <div id="daddy-shoutbox">   
  <table cellpadding="3" cellspacing="0">

<form id="daddy-shoutbox-form" action="demos/jquery-shoutbox/daddy-shoutbox.php?action=add" method="post"> 
  <tr> 
  <td>    
    Name: 
    <input type="text" name="nickname" /> 
  </td>
  </tr>
    <tr> 
  <td> 
  Message: 
  <input type="text" name="message" />
 <br /> <br />
    <input type="submit" value="Submit" />
    <span id="daddy-shoutbox-response"></span>
  </form> 
    </td>
  </tr>
</table>
    <hr size="1" noshade />
    <div id="daddy-shoutbox-list"></div>
    <br />

  </div>

  <script type="text/javascript">
        var count = 0;
        var files = 'demos/jquery-shoutbox/';
        var lastTime = 0;

        function prepare(response) {
          var d = new Date();
          count++;
          d.setTime(response.time*1000);
          var mytime = d.getHours()+':'+d.getMinutes()+':'+d.getSeconds();
          var string = '<div class="shoutbox-list" id="list-'+count+'">'
              + '<span class="shoutbox-list-time">'+mytime+'</span>'
              + '<span class="shoutbox-list-nick">'+response.nickname+':</span>'
              + '<span class="shoutbox-list-message">'+response.message+'</span>'
              +'</div>';
          if (count > 11) { x = (count - 11); $('#list-' + x).fadeOut('slow'); x = document.getElementById('list-' + x); x.style.display = "none"; }
          return string;
        }

        function success(response, status)  { 
          if(status == 'success') {
            lastTime = response.time;
            $('#daddy-shoutbox-response').html('<img src="'+files+'images/accept.png" />');
            $('#daddy-shoutbox-list').prepend(prepare(response));
            $('input[@name=message]').attr('value', '').focus();
            $('#list-'+count).fadeIn('slow');
            timeoutID = setTimeout(refresh, 3000);
          }
        }

        function validate(formData, jqForm, options) {
          for (var i=0; i < formData.length; i++) { 
              if (!formData[i].value) {
                  alert('Please fill in all the fields'); 
                  $('input[@name='+formData[i].name+']').css('background', 'red');
                  return false; 
              } 
          } 
          $('#daddy-shoutbox-response').html('<img src="'+files+'images/loader.gif" />');
          clearTimeout(timeoutID);
        }

        function refresh() {
          $.getJSON(files+"daddy-shoutbox.php?action=view&time="+lastTime, function(json) {
            if(json.length) {
              for(i=0; i < json.length; i++) {
                $('#daddy-shoutbox-list').prepend(prepare(json[i]));
                $('#list-' + count).fadeIn('slow');
              }
              var j = i-1;
              lastTime = json[j].time;
            }
            //alert(lastTime);
          });
          timeoutID = setTimeout(refresh, 3000);
        }

        // wait for the DOM to be loaded 
        $(document).ready(function() { 
            var options = { 
              dataType:       'json',
              beforeSubmit:   validate,
              success:        success
            }; 
            $('#daddy-shoutbox-form').ajaxForm(options);
            timeoutID = setTimeout(refresh, 100);
        });
  </script>
</body>
</html>


您需要使用substr（）强制限制服务器端。否则就很容易规避。
如。
$message=substr（$_请求['message']，0,70）


  <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<title>jQuery</title>
  <style type="text/css">
    #daddy-shoutbox {
    padding: 5px;
    background: #FFF;
    color: #000;
    width: 250px;
    font-family: Arial,Helvetica,sans-serif;
    font-size: 11px;
    }
    .shoutbox-list {
    border-bottom: 1px solid #000;
    padding: 5px;
    display: none;
    }
    #daddy-shoutbox-list {
      text-align: left;
      margin: 0px auto;
    }
    #daddy-shoutbox-form {
      text-align: left;

    }
    .shoutbox-list-time {
    color: #000;
    }
    .shoutbox-list-nick {
      margin-left: 5px;
      font-weight: bold;
    }
    .shoutbox-list-message {
      margin-left: 5px;
    }

  </style>
<script type="text/javascript" src="js/jquery.js"></script>
  <script type="text/javascript" src="js/jquery.form.js"></script>
</head>
  <body>


  <div id="daddy-shoutbox">   
  <table cellpadding="3" cellspacing="0">

<form id="daddy-shoutbox-form" action="demos/jquery-shoutbox/daddy-shoutbox.php?action=add" method="post"> 
  <tr> 
  <td>    
    Name: 
    <input type="text" name="nickname" /> 
  </td>
  </tr>
    <tr> 
  <td> 
  Message: 
  <input type="text" name="message" />
 <br /> <br />
    <input type="submit" value="Submit" />
    <span id="daddy-shoutbox-response"></span>
  </form> 
    </td>
  </tr>
</table>
    <hr size="1" noshade />
    <div id="daddy-shoutbox-list"></div>
    <br />

  </div>

  <script type="text/javascript">
        var count = 0;
        var files = 'demos/jquery-shoutbox/';
        var lastTime = 0;

        function prepare(response) {
          var d = new Date();
          count++;
          d.setTime(response.time*1000);
          var mytime = d.getHours()+':'+d.getMinutes()+':'+d.getSeconds();
          var string = '<div class="shoutbox-list" id="list-'+count+'">'
              + '<span class="shoutbox-list-time">'+mytime+'</span>'
              + '<span class="shoutbox-list-nick">'+response.nickname+':</span>'
              + '<span class="shoutbox-list-message">'+response.message+'</span>'
              +'</div>';
          if (count > 11) { x = (count - 11); $('#list-' + x).fadeOut('slow'); x = document.getElementById('list-' + x); x.style.display = "none"; }
          return string;
        }

        function success(response, status)  { 
          if(status == 'success') {
            lastTime = response.time;
            $('#daddy-shoutbox-response').html('<img src="'+files+'images/accept.png" />');
            $('#daddy-shoutbox-list').prepend(prepare(response));
            $('input[@name=message]').attr('value', '').focus();
            $('#list-'+count).fadeIn('slow');
            timeoutID = setTimeout(refresh, 3000);
          }
        }

        function validate(formData, jqForm, options) {
          for (var i=0; i < formData.length; i++) { 
              if (!formData[i].value) {
                  alert('Please fill in all the fields'); 
                  $('input[@name='+formData[i].name+']').css('background', 'red');
                  return false; 
              } 
          } 
          $('#daddy-shoutbox-response').html('<img src="'+files+'images/loader.gif" />');
          clearTimeout(timeoutID);
        }

        function refresh() {
          $.getJSON(files+"daddy-shoutbox.php?action=view&time="+lastTime, function(json) {
            if(json.length) {
              for(i=0; i < json.length; i++) {
                $('#daddy-shoutbox-list').prepend(prepare(json[i]));
                $('#list-' + count).fadeIn('slow');
              }
              var j = i-1;
              lastTime = json[j].time;
            }
            //alert(lastTime);
          });
          timeoutID = setTimeout(refresh, 3000);
        }

        // wait for the DOM to be loaded 
        $(document).ready(function() { 
            var options = { 
              dataType:       'json',
              beforeSubmit:   validate,
              success:        success
            }; 
            $('#daddy-shoutbox-form').ajaxForm(options);
            timeoutID = setTimeout(refresh, 100);
        });
  </script>
</body>
</html>


由于3秒不是很长的时间，您可以让页面加载3秒。这不是一个优雅的解决方案，很容易被黑客绕过，但这只是一个开始。将以下内容放在文档的开头：