php计算整个mysql数据库的大小

php计算连接的mysql数据库的大小，用MB，KB或者GB的格式返回

1. function CalcFullDatabaseSize($database, $db) {
3. $tables = mysql_list_tables($database, $db);
4. if (!$tables) { return -1; }
6. $table_count = mysql_num_rows($tables);
7. $size = 0;
9. for ($i=0; $i $tname = mysql_tablename($tables, $i);
10. $r = mysql_query("SHOW TABLE STATUS FROM ".$database." LIKE '".$tname."'");
11. $data = mysql_fetch_array($r);
12. $size += ($data['Index_length'] + $data['Data_length']);
13. };
15. $units = array(' B', ' KB', ' MB', ' GB', ' TB');
16. for ($i = 0; $size > 1024; $i++) { $size /= 1024; }
17. return round($size, 2).$units[$i];
18. }
21. /*
22. ** Example:
23. */
25. // open mysql connection:
26. $handle = mysql_connect('localhost', 'user', 'password');
28. if (!$handle) { die('Connection failed!'); }
30. // get the size of all tables in this database:
31. print CalcFullDatabaseSize('customer1234', $handle);
32. // --> returns something like: 484.2 KB
34. // close connection:
35. mysql_close($handle);

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php, mysql