解析PHP漢字驗證碼的實現_PHP教程
      
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      推薦：php 截取中文
      ?php ?php //截取中文字符串 function mysubstr(str, start, len) { tmpstr = ; strlen = start + len; for(i = 0; i strlen; i++) { if(ord(substr(str, i, 1)) 0xa0) { tmpstr .= substr(str, i, 2); i++; } else tmpstr .= substr(str, i, 1); } return
      <?php 
      /* 
      * 文件:chinesechar.php 
      * 作用:漢字數據儲存 
      * 作者:PHP實戰群:33918040 - 魚尾唯一 
      * 網址:http://bbs.ailf.cn/ http://www.fishwei.com/ 
      * 特注:版權所有轉載注明出處!有付出才會有收獲! 
      */ 
      ChineseChar = array("人","出","來","友","學","孝","仁","義","禮","廉","忠","國","中","易","白","者","火 ","土","金","木","雷","風","龍","虎","天","地", "生","暈","菜","鳥","田","三","百","錢","福 ","愛","情","獸","蟲","魚","九","網","新","度","哎","唉","啊","哦","儀","老","少","日", "月 ","星"); 
      ?> 
      <?php 
      session_start(); 
      errorMSG = ''; 
      //驗證用戶輸入是否和驗證碼一致 
      if(!is_null(_POST['check'])) 
      { 
      if (strcasecmp(_SESSION['code'],_POST['code'])==0) 
      errorMSG = "<p style=\"font-size:12px;color:#009900\">驗證成功!</p>"; 
      else 
      errorMSG = "<p style=\"font-size:12px;color:#FF0000\">驗證失敗!</p>"; 
      } 
      ?> 
      <html> 
      <head> 
      <meta http-equiv="Content-Type" content="text/html; charset=gb2312"> 
      </head> 
      <body> 
      <?php 
      if(errorMSG){ 
      echo errorMSG; 
      } 
      ?> 
      <form action=<?php echo _SERVER['PHP_SELF']?> method=post> 
      請輸入驗證碼：<input type="text" name="code" style="width: 
      80px"><img src="code.php"> 
      <br> 
      <input type="submit" name="check" value="提交驗證碼"> 
      </form> 
      </body> 
      </html> 
      <?php 
      include_once("chinesechar.php"); 
      session_start(); 
      // 設置 content-type 
      header("Content-type: image/png"); 
      // 創建圖片 
      im = imagecreatetruecolor(120, 30); 
      // 創建顏色 
      fontcolor = imagecolorallocate(im, 255, 255, 255); 
      bg = imagecolorallocate(im, 0, 0, 0); 
      // 設置文字 
      for(i=0;i<4;i++) text .= ChineseChar[(array_rand(ChineseChar))]; 
      _SESSION['code'] = text; 
      // 設置字體 
      font = 'simkai.ttf'; 
      // 添加文字 
      imagettftext(im, 18, 0, 11, 21, fontcolor, font, iconv("GB2312","UTF-8",text)); 
      // 輸出圖片 
      imagepng(im); 
      imagedestroy(im); 
      ?>
       
       
      分享：淺析動態網頁技術PHP中錯誤處理的一些方法
      已經玩php一段時間了，基本是from 0開始的，經常出現的問題也很多，慢慢的可以熟練的查詢文檔了，而且，經驗也不是很多。 先look here。： error_reporting(1048);//1，2，4，7，...，1048 ob_start(); session_start(); date_default_timezone_set('Asia/Sh
      


      

      


      來源：模板無憂//所屬分類：PHP教程/更新時間：2010-04-14


      


      



      


      



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