tbl_get_field.php

   1 <?php
   2 /* vim: set expandtab sw=4 ts=4 sts=4: */
   3 /**
   4  * Provides download to a given field defined in parameters.
   5  * @version $Id$
   6  * @package phpMyAdmin
   7  */
   8
   9 /**
  10  * Common functions.
  11  */
  12 require_once './libraries/common.inc.php';
  13 require_once './libraries/mime.lib.php';
  14
  15 /* Check parameters */
  16 PMA_checkParameters(array('db', 'table', 'where_clause', 'transform_key'));
  17
  18 /* Select database */
  19 if (!PMA_DBI_select_db($db)) {
  20     PMA_mysqlDie(sprintf(__('\'%s\' database does not exist.'), htmlspecialchars($db)),
  21         '', '');
  22 }
  23
  24 /* Check if table exists */
  25 if (!PMA_DBI_get_columns($db, $table)) {
  26     PMA_mysqlDie(__('Invalid table name'));
  27 }
  28
  29 /* Grab data */
  30 $sql = 'SELECT ' . PMA_backquote($transform_key) . ' FROM ' . PMA_backquote($table) . ' WHERE ' . $where_clause . ';';
  31 $result = PMA_DBI_fetch_value($sql);
  32
  33 /* Check return code */
  34 if ($result === false) {
  35     PMA_mysqlDie(__('MySQL returned an empty result set (i.e. zero rows).'), $sql);
  36 }
  37
  38 /* Avoid corrupting data */
  39 @ini_set('url_rewriter.tags', '');
  40
  41 header('Content-Type: ' . PMA_detectMIME($result));
  42 header('Expires: ' . gmdate('D, d M Y H:i:s') . ' GMT');
  43 header('Content-Disposition: attachment; filename="' . $table . '-' .  $transform_key . '.bin"');
  44 if (PMA_USR_BROWSER_AGENT == 'IE') {
  45     header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
  46     header('Pragma: public');
  47 } else {
  48     header('Pragma: no-cache');
  49     // test case: exporting a database into a .gz file with Safari
  50     // would produce files not having the current time
  51     // (added this header for Safari but should not harm other browsers)
  52     header('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT');
  53 }
  54 echo $result;
  55 ?>