这个程序可以用来浏览MySQL中的数据,您可以稍做修改就可以做出很不错的MySQL浏览器.
*/

/*
?cmd=db
?cmd=table&db={}
?cmd=record&db={}&table={}
*/

$host = 'localhost';
$user = 'test';
$password = '';

if(!isset($cmd)) $cmd = 'db';
switch($cmd){
   case 'db':
      break;
   case 'table':
      break;
   case 'record':
      break;
   default:
      $cmd = 'db';
      break;
}

$con = @mysql_connect($host,$user,$password) or die('无法连接'.$host);

switch($cmd){
   case 'db':
      $dbs = mysql_list_dbs($con) or die('mysql_list_dbs 出错:'.$php_errmsg);
      echo 'databases on '.$host.':<br'.chr(13);
      $num_rows = mysql_num_rows($dbs);
      for($i=0;$i<$num_rows;$i++){
         $db = mysql_tablename($dbs,$i);
         echo '&nbsp;&nbsp;&nbsp;&nbsp;<a href="'.$PHP_SELF.'?cmd=table&db='.
              urlencode($db).'"'.$db.'</a<br'.chr(13);
      }
      mysql_free_result($dbs);
      break;
   case 'table':
      $tables = @mysql_list_tables($db,$con) or die('mysql_list_tables 出错:'.
                $php_errmsg);
      echo 'tables on '.$db.' of '.$host.':<br'.chr(13);
      $num_rows = mysql_num_rows($tables);
      for($i=0;$i<$num_rows;$i++){
         $table = mysql_tablename($tables,$i);
         echo '&nbsp;&nbsp;&nbsp;&nbsp;<a href="'.$PHP_SELF.'?cmd=record&db='.
              urlencode($db).'&table='.urlencode($table).'"'.$table.'</a<br'.
              chr(13);
      }
      mysql_free_result($tables);
      echo '<hr<a href="'.$PHP_SELF.'?cmd=db"show databases</a'.chr(13);
      break;
   case 'record':
      $records = mysql_db_query($db,'select * from '.$table,$con) or
                 die('mysql_db_query 出错:'.$php_errmsg);
      echo 'records on '.$table.':<br'.chr(13);
      echo '<table border="1" cellspacing="0" cellpadding="0"'.chr(13);
      echo '<tr'.chr(13);
      $num_fields = mysql_num_fields($records);
      for($i=0;$i<$num_fields;$i++)
         echo '<th&nbsp;'.mysql_field_name($records,$i).'</th'.chr(13);
      echo '</tr'.chr(13);
      while($row=mysql_fetch_row($records)){
         echo '&l