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php分页有关问题系统提示未定义变量Undefinedvariable:php_self

时间：2021-07-01 10:21:17 帮助过：26人阅读

php分页问题 系统提示未定义变量Undefined variable: php_self
这个页面是一个可以正常显示列表的页面，单击“下一页”时，页数会发生变化，但是页面内容还是显示的第一页。系统提示第72和79行未定义变量Undefined variable: php_self 我应该怎样修改下？ 
  1. <!--?php<br /-->
  2. /*error_reporting(E_ALL ^ E_NOTICE);*/<br>
  3. //######################课题列表##########################<br>
  4.   include "config.php";<br>
  5.   include "header.php";<br>
  6. ?> <br>
  7. <meta http-equiv="Content-Type" content="text/html; charset=GB2312"><br>
  8. <br>
  9. <br>
  10. <title>课题列表</title><br>
  11. <style type="text/css"><br />
  12. <!--<br />
  13. .STYLE1 {font-size: 14px}<br />
  14. --><br />
  15. </style><br>
  16. <br><br><br><br><br><br><br><br><br><br><br>
  17.   $n=0; <br>
  18.   $query=mysql_query("select count(*) as sm from jiaoshi");<br>
  19.   mysql_query("set names 'GB2312'");<br>
  20.   $row=mysql_fetch_array($query);<br>
  21.   $count=$row['sm'];<br>
  22.     if(empty($offset))<br>
  23.               {$offset=0;}<br>
  24. echo  $offset;<br>
  25.    $query=mysql_query("select * from jiaoshi order by id asc limit $offset,$list_num") or die ("fail");<br>
  26.    mysql_query("set names 'GB2312'");<br>
  27.    while($row=mysql_fetch_array($query)){<br>
  28.         if(($n%2)!='0'){<br>
  29.  
  30.   echo "";}<br>
  31.   else{<br>
  32.   echo "";<br>
  33.   }<br>
  34. if($row['surplus']==0)<br>
  35.      $ss="不可选";<br>
  36. else $ss="可选"; <br>
  37.      echo"<br><br><div class="">
  38.                         <ul class="m-news-opt fix">
  39.                             <li class="opt-item">
  40.                                 <a href="/PHPjiqiao-120989.html" target="_blank"><p>< 上一篇</p><p class="ellipsis">初学者一枚，大神帮忙</p></a>
  41.                             </li>
  42.                             <li class="opt-item ta-r">
  43.                                  <a href="/PHPjiqiao-120991.html" target="_blank"><p>下一篇 ></p><p class="ellipsis">请问如何获取mysql存储过程的out参数的值</p></a>
  44.                             </li>
  45.                         </ul>
  46.                     </div><div class="g-title fix">
  47.                         <h2 class="title-txt">人气教程排行</h2>
  48.                     </div><div class="m-rank u-dashed mb40">
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  54.                                    php如何获取跳转前的url                                </a>
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  58.   <li class="rank-item">
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  69.                                     <span class="g-sort-num third">3</span>
  70.                                    为什么php不能做大型系统？                                </a>
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  73.   
  74. <li class="rank-item">
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  78.                                    range函数怎么用                                </a>
  79.                             </li>
  80.   
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  82. <li class="rank-item">
  83.                                 <a href="/PHPjiqiao-162433.html" title="php中计算页面加载时间几种方法总结_PHP教程" class="item-name ellipsis" target="_blank">
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  86.                                    php中计算页面加载时间几种方法总结_PHP教程                                </a>
  87.                             </li>
  88.   
  89.   
  90. <li class="rank-item">
  91.                                 <a href="/PHPjiqiao-140221.html" title="求帮助，关于paypal支付返回值修改订单状态" class="item-name ellipsis" target="_blank">
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  94.                                    求帮助，关于paypal支付返回值修改订单状态                                </a>
  95.                             </li>
  96.   
  97.   
  98. <li class="rank-item">
  99.                                 <a href="/PHPjiqiao-103588.html" title="typecho怎么配置文章内容页?" class="item-name ellipsis" target="_blank">
  100.                                     <span class="g-art-count fr">174次</span>
  101.                                     <span class="g-sort-num ">7</span>
  102.                                    typecho怎么配置文章内容页?                                </a>
  103.                             </li>
  104.   
  105.   
  106. <li class="rank-item">
  107.                                 <a href="/PHPjiqiao-99213.html" title="PhpStorm左侧structure不显示文件的方法列表是这么回事？" class="item-name ellipsis" target="_blank">
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  110.                                    PhpStorm左侧structure不显示文件的方法列表是这么回事？                                </a>
  111.                             </li>
  112.   
  113.   
  114. <li class="rank-item">
  115.                                 <a href="/PHPjiqiao-92208.html" title="查看PHP的环境变量_PHP" class="item-name ellipsis" target="_blank">
  116.                                     <span class="g-art-count fr">174次</span>
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  118.                                    查看PHP的环境变量_PHP                                </a>
  119.                             </li>
  120.   
  121.   
  122. <li class="rank-item">
  123.                                 <a href="/PHPjiqiao-170.html" title="PHP Primary script unknown 解决方法总结" class="item-name ellipsis" target="_blank">
  124.                                     <span class="g-art-count fr">174次</span>
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  126.                                    PHP Primary script unknown 解决方法总结                                </a>
  127.                             </li>
  128.   
  129.   
  130. <li class="rank-item">
  131.                                 <a href="/PHPjiqiao-148.html" title="php的命名空间与自动加载实现方法" class="item-name ellipsis" target="_blank">
  132.                                     <span class="g-art-count fr">174次</span>
  133.                                     <span class="g-sort-num ">11</span>
  134.                                    php的命名空间与自动加载实现方法                                </a>
  135.                             </li>
  136.   
  137.   
  138. <li class="rank-item">
  139.                                 <a href="/PHPjiqiao-133.html" title="解决laravel 出现ajax请求419(unknown status)的问题" class="item-name ellipsis" target="_blank">
  140.                                     <span class="g-art-count fr">174次</span>
  141.                                     <span class="g-sort-num ">12</span>
  142.                                    解决laravel 出现ajax请求419(unknown status)的问题                                </a>
  143.                             </li>
  144.   
  145.   
  146. <li class="rank-item">
  147.                                 <a href="/PHPjiqiao-462817.html" title="php 如何删除mysql记录" class="item-name ellipsis" target="_blank">
  148.                                     <span class="g-art-count fr">173次</span>
  149.                                     <span class="g-sort-num ">13</span>
  150.                                    php 如何删除mysql记录                                </a>
  151.                             </li>
  152.   
  153.   
  154. <li class="rank-item">
  155.                                 <a href="/PHPjiqiao-388448.html" title="PHP如何替换数组中的指定元素" class="item-name ellipsis" target="_blank">
  156.                                     <span class="g-art-count fr">173次</span>
  157.                                     <span class="g-sort-num ">14</span>
  158.                                    PHP如何替换数组中的指定元素                                </a>
  159.                             </li>
  160.   
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  162. <li class="rank-item">
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  165.                                     <span class="g-sort-num ">15</span>
  166.                                    怎么去除字符串中非汉字、非字母、非数字的字符                                </a>
  167.                             </li>
  168.   
  169.   
  170. <li class="rank-item">
  171.                                 <a href="/PHPjiqiao-112291.html" title="mysql如何一次执行多条SQL语句" class="item-name ellipsis" target="_blank">
  172.                                     <span class="g-art-count fr">173次</span>
  173.                                     <span class="g-sort-num ">16</span>
  174.                                    mysql如何一次执行多条SQL语句                                </a>
  175.                             </li>
  176.   
  177.   
  178. <li class="rank-item">
  179.                                 <a href="/PHPjiqiao-110669.html" title="修改header里面的Connection为close解决方法" class="item-name ellipsis" target="_blank">
  180.                                     <span class="g-art-count fr">173次</span>
  181.                                     <span class="g-sort-num ">17</span>
  182.                                    修改header里面的Connection为close解决方法                                </a>
  183.                             </li>
  184.   
  185.   
  186. <li class="rank-item">
  187.                                 <a href="/PHPjiqiao-153.html" title="PHP基于session.upload_progress 实现文件上传进度显示功能详解" class="item-name ellipsis" target="_blank">
  188.                                     <span class="g-art-count fr">173次</span>
  189.                                     <span class="g-sort-num ">18</span>
  190.                                    PHP基于session.upload_progress 实现文件上传进度显示功能详解                                </a>
  191.                             </li>
  192.   
  193.   
  194. <li class="rank-item">
  195.                                 <a href="/PHPjiqiao-125.html" title="php5.6.x到php7.0.x特性小结" class="item-name ellipsis" target="_blank">
  196.                                     <span class="g-art-count fr">173次</span>
  197.                                     <span class="g-sort-num ">19</span>
  198.                                    php5.6.x到php7.0.x特性小结                                </a>
  199.                             </li>
  200.   
  201.   
  202. <li class="rank-item">
  203.                                 <a href="/PHPjiqiao-378118.html" title="php为什么会出现504错误" class="item-name ellipsis" target="_blank">
  204.                                     <span class="g-art-count fr">172次</span>
  205.                                     <span class="g-sort-num ">20</span>
  206.                                    php为什么会出现504错误                                </a>
  207.                             </li>
  208.                         </ul>
  209.                     </div><div class="footer">
  210.    本站所有资源全部来源于网络，若本站发布的内容侵害到您的隐私或者利益，请联系我们删除！</div><div style="display:none">
  211. <div class="login-box" id="login-dialog">
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  213. <div class="login-form" id="nav-signin">
  214.  <!-- <div class="login-ico"><a rel="nofollow" class="qq" id="qqlogin" target="_blank" href="/user-center-qqlogin.html"> QQ </a></div>  -->
  215. <div class="login-box-form" id="con_login_1">
  216. <form id="loginform" action="/user-center-login.html" method="post" onsubmit="return false;"></form>
  217. <p class="int-text">
  218. <input class="email" id="username" name="username" type="text" value="用户名或Email" onfocus="if(this.value=='用户名或Email'){this.value='';}" onblur="if(this.value==''){this.value='用户名或Email';};"></p>
  219. <p class="int-text">
  220. <input class="password1" type="password" id="password" name="password" value="******" onblur="if(this.value=='') this.value='******';" onfocus="if(this.value=='******') this.value='';">
  221. </p>
  222. <p class="int-info">
  223.                 <label class="ui-label"> </label>
  224.                 <label for="agreement" class="ui-label-checkbox">
  225.                 <input type="checkbox" value="" name="cookietime" id="cookietime" checked="checked">
  226.                 <input type="hidden" name="notforward" id="notforward" value="1">
  227.                 <input type="hidden" name="dosubmit" id="dosubmit" value="1">记住我的登录 </label>                           
  228.        <a rel="nofollow" class="aright" href="/user-center-forgetpwd.html" target="_blank"> 忘记密码？ </a></p>
  229.   <p class="int-btn"><a rel="nofollow" id="loginbt" class="loginbtn"><span>登录</span></a></p> 
  230.   
  231. </div>
  232. <form id="regform" action="/user-center-reg.html" method="post"></form>
  233. <div class="login-reg" style="display: none;" id="con_login_2">
  234. <input type="hidden" name="t" id="t">
  235.   <p class="int-text">
  236.     <input id="email" name="email" type="text" value="Email" onfocus="if(this.value=='Email'){this.value='';}" onblur="if(this.value==''){this.value='Email';};"></p>
  237.     <p class="int-text">
  238.     <input id="uname" name="username" type="text" value="用户名或昵称" onfocus="if(this.value=='用户名或昵称'){this.value='';}" onblur="if(this.value==''){this.value='用户名或昵称';};"></p>
  239.   <p class="int-text">
  240.   <input type="password" id="pwd" name="password" value="******" onblur="if(this.value=='') this.value='******';" onfocus="if(this.value=='******') this.value='';"> </p>
  241.   <p class="int-text1"><span class="inputbox">
  242.     <input id="validate" name="validate" type="text" value="验证码" onfocus="if(this.value=='验证码'){this.value='';}" onblur="if(this.value==''){this.value='验证码';};">
  243.     </span><span class="yzm-img"><img src="/user-checkcode-index" alt="看不清楚换一张" id="indexlogin"></span></p>
  244.   <p class="int-info">
  245.     <label>
  246.       <input value="" name="agreement" id="agreement" checked="checked" type="checkbox">
  247.       我已阅读<a rel="nofollow" href="/user-center-agreement.html">用户协议</a>及<a rel="nofollow" href="/user-center-agreement.html">版权声明</a></label>
  248.   </p>
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  250. <a rel="nofollow" class="loginbtn" id="register"><span>注册</span></a></p>
  251. </div>
  252.  
  253. </div>
  254. </div>
  255. </div><div data-type="4" data-plugin="aroundbox" data-plugin-aroundbox-x="left" data-plugin-aroundbox-y="bottom" data-plugin-aroundbox-iconsize="60x60" data-plugin-aroundbox-fixed="1" data-plugin-aroundbox-offsetx="10"></div><table width="740" border="0" cellspacing="1" cellpadding="0" bgcolor="#333333" align="center">
  256.   <tbody><tr> 
  257.   <td width="60" height="30" bgcolor="#FFFFFF">   <p class="STYLE1">课题编号</p> </td>
  258.   <td width="300" height="30" bgcolor="#FFFFFF"> 课题名称    </td>
  259.   <td width="85" height="30" bgcolor="#FFFFFF"> 指导教师</td>
  260.   <td width="60" height="30" bgcolor="#FFFFFF"> 职称    </td>
  261.   <td width="60" height="30" bgcolor="#FFFFFF"> 可选人数    </td>
  262.   <td width="80" height="30" bgcolor="#FFFFFF" class="title">选题情况    </td>
  263.   <td width="60" height="30" bgcolor="#FFFFFF" class="title">状态    </td>
  264.   <td width="60" height="30" bgcolor="#FFFFFF" class="title">详细资料    </td>
  265.   </tr>
  266. <!--?php<br /--><tr bgcolor="#ffffff"></tr><tr bgcolor="#E4E4E4">
  267. <td height="22" class="STYLE1"> ".$row['id']."</td>
  268. <td height="22" class="STYLE1"> ".$row['subject']."</td>                     
  269.                   
  270.  
  271.                     
  272.                     
  273.                     
  274.                     
  275.                     
  276.                 
  277.               
  278.                     
  279.                 
  280.                   
  281.                     
  282.                     
  283.                 
  284.             
  285.             <!-- / 教程内容页 -->
  286.         
  287.     
  288.   
  289. <!-- 页尾 -->
  290. <!-- / 页尾 -->
  291.  
  292.  
  293.    
  294. <script src="https://hm.baidu.com/hm.js?6dc1c3c5281cf70f49bc0bc860ec24f2"></script><script>
  295. var _hmt = _hmt || [];
  296. (function() {
  297.   var hm = document.createElement("script");
  298.   hm.src = "https://hm.baidu.com/hm.js?6dc1c3c5281cf70f49bc0bc860ec24f2";
  299.   var s = document.getElementsByTagName("script")[0]; 
  300.   s.parentNode.insertBefore(hm, s);
  301. })();
  302. </script>
  303.  <script type="text/javascript" src="/layui/layui.js"></script>
  304.     <script>
  305.     layui.use('code', function() {
  306.         layui.code({
  307.             elem: 'pre', //默认值为.layui-code
  308.             about: false,
  309.             skin: 'notepad',
  310.             title: 'php怎么实现数据库验证跳转代码块',
  311.             encode: true //是否转义html标签。默认不开启
  312.         });
  313.     });
  314.     </script>
  315. </tr></tbody></table>