/[dtapublic]/to_be_filed/webprojs/php_libraries/php_library/fboprime/dbdropall.php
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Revision 35 - (hide annotations) (download)
Sat Oct 8 23:35:33 2016 UTC (7 years, 5 months ago) by dashley
File size: 5849 byte(s)
Initial commit.
1 dashley 35 #!/usr/bin/php -q
2     <?php
3     //$Header: /hl/cvsroots/gpl01/gpl01/webprojs/fboprime/sw/standalone/dbdropall.php,v 1.1 2006/04/12 00:21:15 dashley Exp $
4     //--------------------------------------------------------------------------------
5     //dbdropall.php--Drops (Deletes) All Database Tables
6     //Copyright (C) 2006 David T. Ashley
7     //
8     //This program is free software; you can redistribute it and/or
9     //modify it under the terms of the GNU General Public License
10     //as published by the Free Software Foundation; either version 2
11     //of the License, or (at your option) any later version.
12     //
13     //This program is distributed in the hope that it will be useful,
14     //but WITHOUT ANY WARRANTY; without even the implied warranty of
15     //MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16     //GNU General Public License for more details.
17     //
18     //You should have received a copy of the GNU General Public License
19     //along with this program; if not, write to the Free Software
20     //Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
21     //--------------------------------------------------------------------------------
22     //Set the include file path. This is necessary to get to the configuration
23     //information, including how to try to connect to the database.
24     set_include_path("/var/www/php_library/fboprime");
25     //
26     //Include the configuration information.
27     require_once("config.inc");
28     //
29     //--------------------------------------------------------------------------------
30     //Writes a horizontal line.
31     //
32     function hline()
33     {
34     for ($i=0; $i<80; $i++)
35     {
36     echo "-";
37     }
38     echo "\n";
39     }
40     //
41     //--------------------------------------------------------------------------------
42     //Errors out.
43     //
44     function error_out()
45     {
46     echo "FATAL ERROR\n";
47     exit(1);
48     }
49     //--------------------------------------------------------------------------------
50     //Returns a version control string. Used for randomness.
51     //
52     function vc_info()
53     {
54     return("\$Header: /hl/cvsroots/gpl01/gpl01/webprojs/fboprime/sw/standalone/dbdropall.php,v 1.1 2006/04/12 00:21:15 dashley Exp $");
55     }
56     //
57     //--------------------------------------------------------------------------------
58     //
59     function drop_all($handle, $droplist)
60     {
61     //Figure out how many tables are in the database, and get their names.
62     hline();
63    
64     $result = mysql_query("show tables", $handle);
65    
66     if ($result === FALSE)
67     error_out();
68    
69     //Figure out the results.
70     $ntables = mysql_num_rows($result);
71     for ($i=0; $i<$ntables; $i++)
72     {
73     $temp = mysql_fetch_row($result);
74     $tables_array[$i] = $temp[0];
75     }
76    
77     //Tell how many tables.
78     if ($ntables > 1)
79     echo $ntables . " tables found in database:\n";
80     else if ($ntables == 1)
81     echo $ntables . " table found in database:\n";
82     else
83     echo "No tables found in database.\n";
84    
85     //Emit the table names.
86     for ($i = 0; $i < $ntables; $i++)
87     {
88     echo " " . $tables_array[$i] . "\n";
89     }
90    
91     //For each table in the design, if it is in the actual database, issue
92     //the drop statement.
93     if ($ntables)
94     {
95     for ($i=0; $i<count($droplist); $i++)
96     {
97     $found = array_search($droplist[$i], $tables_array);
98     if (($found !== FALSE) && ($found !== NULL))
99     {
100     echo "Dropping table " . $droplist[$i] . " ... ";
101    
102     //The table exists. Drop it.
103     //Run the query and bug out if it fails.
104     $result = mysql_query("drop table " . $droplist[$i], $handle);
105    
106     if ($result === FALSE)
107     error_out();
108    
109     echo "OK.\n";
110     }
111     }
112     }
113     }
114     //
115     //--------------------------------------------------------------------------------
116     //--------------------------------------------------------------------------------
117     //--------------------------------------------------------------------------------
118     //------ M A I N S C R I P T ------------------------------------------------
119     //--------------------------------------------------------------------------------
120     //--------------------------------------------------------------------------------
121     //--------------------------------------------------------------------------------
122     //
123     //
124     //This is the list of the database tables. For each one, this script will try to
125     //trash it if it exists.
126     //
127     $tables_to_drop = array
128     (
129     "usrs",
130     "usrsresv",
131     "resv",
132     "slot",
133     "rscs",
134     "sess",
135     "loge",
136     "dpar"
137     );
138    
139     if ($argc == 1)
140     {
141     //The no-parameters case, as expected.
142    
143     $handle = mysql_connect(CONFIG_MYSQL_SERVER, CONFIG_MYSQL_USERNAME, CONFIG_MYSQL_PASSWORD);
144     $handle_copy = $handle;
145     if ($handle === FALSE)
146     {
147     echo "ERROR: Unable to connect and/or authenticate to MySQL database.\n";
148     exit(1);
149     }
150    
151     $result = mysql_select_db(CONFIG_MYSQL_DATABASE, $handle);
152     if ($result === FALSE)
153     {
154     echo "ERROR: Unable to select MySQL database \"" . CONFIG_MYSQL_DATABASE . "\".\n";
155     exit(1);
156     }
157    
158     //Do the dropping.
159     drop_all($handle, $tables_to_drop);
160     hline();
161    
162     //Try to close the database.
163     $result = mysql_close($handle);
164     if ($result === FALSE)
165     {
166     echo "ERROR: Unable to close MySQL connection.\n";
167     exit(1);
168     }
169    
170     exit(0);
171     }
172     else
173     {
174     echo "ERROR: This command accepts no command-line parameters.\n";
175     exit(1);
176     }
177    
178     //If we're here, success. Per the standard Unix way of thinking
179     //say nothing. Silence means OK.
180     exit(0);
181     //
182     //--------------------------------------------------------------------------------
183     //End of $RCSfile: dbdropall.php,v $.
184     //--------------------------------------------------------------------------------
185     ?>

dashley@gmail.com
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