general.php

Zen Cart是真正的电子商务艺术

<?php
/**
 * general functions used by the installer
 * @package Installer
 * @access private
 * @copyright Copyright 2003-2007 Zen Cart Development Team
 * @copyright Portions Copyright 2003 osCommerce
 * @license http://www.zen-cart.com/license/2_0.txt GNU Public License V2.0
 * @version $Id: general.php 7333 2007-10-31 10:16:15Z drbyte $
 */

  if (!defined('TABLE_UPGRADE_EXCEPTIONS')) define('TABLE_UPGRADE_EXCEPTIONS','upgrade_exceptions');

  function zen_not_null($value) {
    if (is_array($value)) {
      if (sizeof($value) > 0) {
        return true;
      } else {
        return false;
      }
    } else {
      if (($value != '') && (strtolower($value) != 'null') && (strlen(trim($value)) > 0)) {
        return true;
      } else {
        return false;
      }
    }
  }

  function zen_output_string($string, $translate = false, $protected = false) {
    if ($protected == true) {
      return htmlspecialchars($string);
    } else {
      if ($translate == false) {
        return zen_parse_input_field_data($string, array('"' => '&quot;'));
      } else {
        return zen_parse_input_field_data($string, $translate);
      }
    }
  }

////
  function zen_db_input($string) {
    return addslashes($string);
  }

////
  function zen_parse_input_field_data($data, $parse) {
    return strtr(trim($data), $parse);
  }

function setInputValue($input, $constant, $default) {
  if (isset($input)) {
    define($constant, $input);
  } else {
    define($constant, $default);
  }
}

function setRadioChecked($input, $constant, $default) {
  if ($input == '') {
	$input = $default;
  }
  if ($input == 'true') {
	define($constant . '_FALSE', '');
	define($constant . '_TRUE', 'checked="checked" ');
  } else {
	define($constant . '_FALSE', 'checked="checked" ');
	define($constant . '_TRUE', '');
  }
}

function setSelected($input, $selected) {
  if ($input == $selected) {
    return ' selected="selected"';
  }
}
function executeSql($sql_file, $database, $table_prefix = '', $isupgrade=false) {
  $debug=false;
  if (!defined('DB_PREFIX')) define('DB_PREFIX',$table_prefix);
//	  echo 'start SQL execute';
  global $db;

  $ignored_count=0;
  $ignore_line=false;
  $results=0;
  $string='';
	$result='';
	$errors=array();	

  // prepare for upgrader processing 
  if ($isupgrade) zen_create_upgrader_table(); // only creates table if doesn't already exist

  if (!get_cfg_var('safe_mode')) {
    @set_time_limit(1200);
  }

  $counter = 0;
  $lines = file($sql_file);
  $newline = '';
	$lines_to_keep_together_counter=0;
//  $saveline = '';
  foreach ($lines as $line) {
    $line = trim($line);
//    $line = $saveline . $line;
    $keep_together = 1; // count of number of lines to treat as a single command

     // split the line into words ... starts at $param[0] and so on.  Also remove the ';' from end of last param if exists
     $param=explode(" ",(substr($line,-1)==';') ? substr($line,0,strlen($line)-1) : $line);
     if (!isset($param[4])) $param[4] = '';
     if (!isset($param[5])) $param[5] = '';

      // The following command checks to see if we're asking for a block of commands to be run at once.
      // Syntax: #NEXT_X_ROWS_AS_ONE_COMMAND:6     for running the next 6 commands together (commands denoted by a ;)
      if (substr($line,0,28) == '#NEXT_X_ROWS_AS_ONE_COMMAND:') $keep_together = substr($line,28);
      if (substr($line,0,1) != '#' && substr($line,0,1) != '-' && $line != '') {
//        if ($table_prefix != -1) {
//echo '*}'.$line.'<br>';

          $line_upper=strtoupper($line);
          switch (true) {
          case (substr($line_upper, 0, 21) == 'DROP TABLE IF EXISTS '):
            $line = 'DROP TABLE IF EXISTS ' . $table_prefix . substr($line, 21);
            break;
          case (substr($line_upper, 0, 11) == 'DROP TABLE ' && $param[2] != 'IF'):
            if (!$checkprivs = zen_check_database_privs('DROP')) $result=sprintf(REASON_NO_PRIVILEGES,'DROP');
            if (!zen_table_exists($param[2]) || zen_not_null($result)) {
              zen_write_to_upgrade_exceptions_table($line, (zen_not_null($result) ? $result : sprintf(REASON_TABLE_DOESNT_EXIST,$param[2])), $sql_file);
              $ignore_line=true;
              $result=(zen_not_null($result) ? $result : sprintf(REASON_TABLE_DOESNT_EXIST,$param[2])); //duplicated here for on-screen error-reporting
              break;
            } else {
              $line = 'DROP TABLE ' . $table_prefix . substr($line, 11);
            }
            break;
          case (substr($line_upper, 0, 13) == 'CREATE TABLE '):
            // check to see if table exists
            $table = (strtoupper($param[2].' '.$param[3].' '.$param[4]) == 'IF NOT EXISTS') ? $param[5] : $param[2];
            $result=zen_table_exists($table);
            if ($result==true) {
              zen_write_to_upgrade_exceptions_table($line, sprintf(REASON_TABLE_ALREADY_EXISTS,$table), $sql_file);
              $ignore_line=true;
              $result=sprintf(REASON_TABLE_ALREADY_EXISTS,$table); //duplicated here for on-screen error-reporting
              break;
            } else {
              $line = (strtoupper($param[2].' '.$param[3].' '.$param[4]) == 'IF NOT EXISTS') ? 'CREATE TABLE IF NOT EXISTS ' . $table_prefix . substr($line, 27) : 'CREATE TABLE ' . $table_prefix . substr($line, 13);
            }
            break;
          case (substr($line_upper, 0, 13) == 'REPLACE INTO '):
            //check to see if table prefix is going to match
            if (!$tbl_exists = zen_table_exists($param[2])) $result=sprintf(REASON_TABLE_NOT_FOUND,$param[2]).' 妫