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dashley |
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#!/usr/bin/php -q
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<?php
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//$Header: /hl/cvsroots/gpl01/gpl01/webprojs/fboprime/sw/standalone/dbdropall.php,v 1.1 2006/04/12 00:21:15 dashley Exp $
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//--------------------------------------------------------------------------------
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//dbdropall.php--Drops (Deletes) All Database Tables
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//Copyright (C) 2006 David T. Ashley
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//
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//This program is free software; you can redistribute it and/or
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//modify it under the terms of the GNU General Public License
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//as published by the Free Software Foundation; either version 2
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//of the License, or (at your option) any later version.
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//
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//This program is distributed in the hope that it will be useful,
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//but WITHOUT ANY WARRANTY; without even the implied warranty of
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//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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//GNU General Public License for more details.
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//
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//You should have received a copy of the GNU General Public License
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//along with this program; if not, write to the Free Software
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//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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//--------------------------------------------------------------------------------
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//Set the include file path. This is necessary to get to the configuration
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//information, including how to try to connect to the database.
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set_include_path("/var/www/php_library/fboprime");
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//
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//Include the configuration information.
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require_once("config.inc");
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//
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//--------------------------------------------------------------------------------
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//Writes a horizontal line.
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//
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function hline()
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{
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for ($i=0; $i<80; $i++)
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{
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echo "-";
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}
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echo "\n";
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}
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//
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//--------------------------------------------------------------------------------
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//Errors out.
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//
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function error_out()
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{
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echo "FATAL ERROR\n";
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exit(1);
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}
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//--------------------------------------------------------------------------------
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//Returns a version control string. Used for randomness.
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//
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function vc_info()
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{
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return("\$Header: /hl/cvsroots/gpl01/gpl01/webprojs/fboprime/sw/standalone/dbdropall.php,v 1.1 2006/04/12 00:21:15 dashley Exp $");
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}
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//
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//--------------------------------------------------------------------------------
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//
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function drop_all($handle, $droplist)
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{
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//Figure out how many tables are in the database, and get their names.
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hline();
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$result = mysql_query("show tables", $handle);
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if ($result === FALSE)
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error_out();
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//Figure out the results.
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$ntables = mysql_num_rows($result);
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for ($i=0; $i<$ntables; $i++)
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{
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$temp = mysql_fetch_row($result);
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$tables_array[$i] = $temp[0];
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}
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//Tell how many tables.
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if ($ntables > 1)
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echo $ntables . " tables found in database:\n";
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else if ($ntables == 1)
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echo $ntables . " table found in database:\n";
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else
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echo "No tables found in database.\n";
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//Emit the table names.
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for ($i = 0; $i < $ntables; $i++)
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{
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echo " " . $tables_array[$i] . "\n";
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}
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//For each table in the design, if it is in the actual database, issue
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//the drop statement.
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if ($ntables)
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{
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for ($i=0; $i<count($droplist); $i++)
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{
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$found = array_search($droplist[$i], $tables_array);
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if (($found !== FALSE) && ($found !== NULL))
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{
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echo "Dropping table " . $droplist[$i] . " ... ";
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//The table exists. Drop it.
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//Run the query and bug out if it fails.
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$result = mysql_query("drop table " . $droplist[$i], $handle);
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if ($result === FALSE)
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error_out();
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echo "OK.\n";
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}
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}
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}
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}
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//
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//--------------------------------------------------------------------------------
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//--------------------------------------------------------------------------------
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//--------------------------------------------------------------------------------
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//------ M A I N S C R I P T ------------------------------------------------
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//--------------------------------------------------------------------------------
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//--------------------------------------------------------------------------------
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//--------------------------------------------------------------------------------
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//
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//
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//This is the list of the database tables. For each one, this script will try to
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//trash it if it exists.
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//
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$tables_to_drop = array
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(
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"usrs",
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"usrsresv",
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"resv",
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"slot",
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"rscs",
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"sess",
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"loge",
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"dpar"
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);
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if ($argc == 1)
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{
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//The no-parameters case, as expected.
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$handle = mysql_connect(CONFIG_MYSQL_SERVER, CONFIG_MYSQL_USERNAME, CONFIG_MYSQL_PASSWORD);
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$handle_copy = $handle;
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if ($handle === FALSE)
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{
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echo "ERROR: Unable to connect and/or authenticate to MySQL database.\n";
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exit(1);
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}
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$result = mysql_select_db(CONFIG_MYSQL_DATABASE, $handle);
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if ($result === FALSE)
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{
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echo "ERROR: Unable to select MySQL database \"" . CONFIG_MYSQL_DATABASE . "\".\n";
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exit(1);
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}
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//Do the dropping.
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drop_all($handle, $tables_to_drop);
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hline();
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//Try to close the database.
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$result = mysql_close($handle);
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if ($result === FALSE)
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{
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echo "ERROR: Unable to close MySQL connection.\n";
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exit(1);
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}
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exit(0);
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}
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else
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{
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echo "ERROR: This command accepts no command-line parameters.\n";
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exit(1);
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}
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//If we're here, success. Per the standard Unix way of thinking
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//say nothing. Silence means OK.
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exit(0);
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//
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//--------------------------------------------------------------------------------
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//End of $RCSfile: dbdropall.php,v $.
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//--------------------------------------------------------------------------------
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?>
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