phpmyadmin/libraries/tbl_info.inc.php

   1 <?php
   2 /* vim: set expandtab sw=4 ts=4 sts=4: */
   3 /**
   4  * extracts table properties from create statement
   5  *
   6  * @todo should be handled by class Table
   7  * @todo this should be recoded as functions, to avoid messing with global variables
   8  *
   9  * @package PhpMyAdmin
  10  */
  11 if (! defined('PHPMYADMIN')) {
  12     exit;
  13 }
  14
  15 // Check parameters
  16 PMA_Util::checkParameters(array('db', 'table'));
  17
  18 /**
  19  * Defining global variables, in case this script is included by a function.
  20  */
  21 global $showtable, $tbl_is_view, $tbl_storage_engine, $show_comment, $tbl_collation,
  22        $table_info_num_rows, $auto_increment;
  23
  24 /**
  25  * Gets table informations
  26  */
  27 // Seems we need to do this in MySQL 5.0.2,
  28 // otherwise error #1046, no database selected
  29 PMA_DBI_select_db($GLOBALS['db']);
  30
  31
  32 /**
  33  * Holds information about the current table
  34  *
  35  * @todo replace this by PMA_Table
  36  * @global array $GLOBALS['showtable']
  37  * @name $showtable
  38  */
  39 $GLOBALS['showtable'] = array();
  40
  41 // PMA_Table::sGetStatusInfo() does caching by default, but here
  42 // we force reading of the current table status
  43 // if $reread_info is true (for example, coming from tbl_operations.php
  44 // and we just changed the table's storage engine)
  45 $GLOBALS['showtable'] = PMA_Table::sGetStatusInfo(
  46     $GLOBALS['db'],
  47     $GLOBALS['table'],
  48     null,
  49     (isset($reread_info) && $reread_info ? true : false)
  50 );
  51
  52 // need this test because when we are creating a table, we get 0 rows
  53 // from the SHOW TABLE query
  54 // and we don't want to mess up the $tbl_storage_engine coming from the form
  55
  56 if ($showtable) {
  57     if (PMA_Table::isView($GLOBALS['db'], $GLOBALS['table'])) {
  58         $tbl_is_view     = true;
  59         $tbl_storage_engine = __('View');
  60         $show_comment    = null;
  61     } else {
  62         $tbl_is_view     = false;
  63         $tbl_storage_engine = isset($showtable['Engine'])
  64             ? strtoupper($showtable['Engine'])
  65             : '';
  66         $show_comment = '';
  67         if (isset($showtable['Comment'])) {
  68             $show_comment = $showtable['Comment'];
  69         }
  70     }
  71     $tbl_collation       = empty($showtable['Collation'])
  72         ? ''
  73         : $showtable['Collation'];
  74
  75     if (null === $showtable['Rows']) {
  76         $showtable['Rows']   = PMA_Table::countRecords(
  77             $GLOBALS['db'], $showtable['Name'], true
  78         );
  79     }
  80     $table_info_num_rows = isset($showtable['Rows']) ? $showtable['Rows'] : 0;
  81     $row_format = isset($showtable['Row_format']) ? $showtable['Row_format'] : '';
  82     $auto_increment      = isset($showtable['Auto_increment'])
  83         ? $showtable['Auto_increment']
  84         : '';
  85
  86     $create_options      = isset($showtable['Create_options'])
  87         ? explode(' ', $showtable['Create_options'])
  88         : array();
  89
  90     // export create options by its name as variables into global namespace
  91     // f.e. pack_keys=1 becomes available as $pack_keys with value of '1'
  92     unset($pack_keys);
  93     foreach ($create_options as $each_create_option) {
  94         $each_create_option = explode('=', $each_create_option);
  95         if (isset($each_create_option[1])) {
  96             $$each_create_option[0]    = $each_create_option[1];
  97         }
  98     }
  99     // we need explicit DEFAULT value here (different from '0')
 100     $pack_keys = (! isset($pack_keys) || strlen($pack_keys) == 0)
 101         ? 'DEFAULT'
 102         : $pack_keys;
 103     unset($create_options, $each_create_option);
 104 } // end if
 105 ?>