php从mysql数据库中数据导成excel文档

<?php
   //EDIT YOUR MySQL Connection Info:
   $DB_Server = "localhost";        //your MySQL Server 
   $DB_Username = "";                 //your MySQL User Name 
   $DB_Password = "";                //your MySQL Password 
   $DB_DBName = "";                //your MySQL Database Name 
   $DB_TBLName = "";                //your MySQL Table Name 
   //$DB_TBLName,  $DB_DBName, may also be commented out & passed to the browser
   //as parameters in a query string, so that this code may be easily reused for
   //any MySQL table or any MySQL database on your server
   //DEFINE SQL QUERY:
   //you can use just about ANY kind of select statement you want - 
  //edit this to suit your needs!
   $sql = "Select * from $DB_TBLName";
   //Optional: print out title to top of Excel or Word file with Timestamp
   //for when file was generated:
   //set $Use_Titel = 1 to generate title, 0 not to use title
   $Use_Title = 1;
   //define date for title: EDIT this to create the time-format you need
   $now_date = date('m-d-Y H:i');
   //define title for .doc or .xls file: EDIT this if you want
   $title = "Dump For Table $DB_TBLName from Database $DB_DBName on $now_date";
   /*
   Leave the connection info below as it is:
   just edit the above.
   (Editing of code past this point recommended only for advanced users.)
   */
   //create MySQL connection
   $Connect = @mysql_connect($DB_Server, $DB_Username, $DB_Password)
       or die("Couldn't connect to MySQL:<br>" . mysql_error() . "<br>" . mysql_errno());
   //select database
   $Db = @mysql_select_db($DB_DBName, $Connect)
       or die("Couldn't select database:<br>" . mysql_error(). "<br>" . mysql_errno());
   //execute query
   $result = @mysql_query($sql,$Connect)
       or die("Couldn't execute query:<br>" . mysql_error(). "<br>" . mysql_errno());
   //if this parameter is included ($w=1), file returned will be in word format ('.doc')
   //if parameter is not included, file returned will be in excel format ('.xls')
   if (isset($w) && ($w==1))
   {
      $file_type = "msword";
       $file_ending = "doc";
   }else {
       $file_type = "vnd.ms-excel";
       $file_ending = "xls";
   }
   //header info for browser: determines file type ('.doc' or '.xls')
   header("Content-Type: application/$file_type");
   header("Content-Disposition: attachment; filename=database_dump.$file_ending");
   header("Pragma: no-cache");
   header("Expires: 0");
   /*    Start of Formatting for Word or Excel    */
   if (isset($w) && ($w==1)) //check for $w again
   {
       /*    FORMATTING FOR WORD DOCUMENTS ('.doc')   */
       //create title with timestamp:
       if ($Use_Title == 1)
       {
          echo("$titlenn");
      }
      //define separator (defines columns in excel & tabs in word)
       $sep = "n"; //new line character
       while($row = mysql_fetch_row($result))
       {
           //set_time_limit(60); // HaRa
          $schema_insert = "";
           for($j=0; $j<mysql_num_fields($result);$j++)
           {
           //define field names
          $field_name = mysql_field_name($result,$j);
           //will show name of fields
           $schema_insert .= "$field_name:t";
               if(!isset($row[$j])) {
                  $schema_insert .= "NULL".$sep;
                   }
               elseif ($row[$j] != "") {
                  $schema_insert .= "$row[$j]".$sep;
                   }
               else {
                   $schema_insert .= "".$sep;
                   }
           }
           $schema_insert = str_replace($sep."$", "", $schema_insert);
           $schema_insert .= "t";
           print(trim($schema_insert));
           //end of each mysql row
           //creates line to separate data from each MySQL table row
           print "n----------------------------------------------------n";
       }
   }else{
       /*    FORMATTING FOR EXCEL DOCUMENTS ('.xls')   */
       //create title with timestamp:
      if ($Use_Title == 1)
       {
           echo("$titlen");
       }
       //define separator (defines columns in excel & tabs in word)
       $sep = "t"; //tabbed character
       //start of printing column names as names of MySQL fields
      for ($i = 0; $i < mysql_num_fields($result); $i++)
      {
           echo mysql_field_name($result,$i) . "t";
       }
       print("n");
       //end of printing column names
       //start while loop to get data
       while($row = mysql_fetch_row($result))
       {
           //set_time_limit(60); // HaRa
           $schema_insert = "";
           for($j=0; $j<mysql_num_fields($result);$j++)
           {
              if(!isset($row[$j]))
                  $schema_insert .= "NULL".$sep;
              elseif ($row[$j] != "")
                  $schema_insert .= "$row[$j]".$sep;
              else
                  $schema_insert .= "".$sep;
          }
           $schema_insert = str_replace($sep."$", "", $schema_insert);
           //following fix suggested by Josue (thanks, Josue!)
           //this corrects output in excel when table fields contain n or r
           //these two characters are now replaced with a space
          $schema_insert = preg_replace("/rn|nr|n|r/", " ", $schema_insert);
           $schema_insert .= "t";
           print(trim($schema_insert));
           print "n";
       }
  }
   ?>