本文实例讲述了php计算整个mysql数据库大小的方法。分享给大家供大家参考。具体如下：

这里用MB，KB或者GB的格式返回计算结果。

function CalcFullDatabaseSize($database, $db) {  $tables = mysql_list_tables($database, $db);  if (!$tables) { return -1; }  $table_count = mysql_num_rows($tables);  $size = 0;  for ($i=0; $i < $table_count; $i++) {    $tname = mysql_tablename($tables, $i);    $r = mysql_query("SHOW TABLE STATUS FROM ".$database." LIKE "".$tname.""");    $data = mysql_fetch_array($r);    $size += ($data["Index_length"] + $data["Data_length"]);  };  $units = array(" B", " KB", " MB", " GB", " TB");  for ($i = 0; $size > 1024; $i++) { $size /= 1024; }  return round($size, 2).$units[$i];}/*** Example:*/// open mysql connection:$handle = mysql_connect("localhost", "user", "password"); if (!$handle) { die("Connection failed!"); }// get the size of all tables in this database:print CalcFullDatabaseSize("customer1234", $handle);// --> returns something like: 484.2 KB// close connection:mysql_close($handle);

希望本文所述对大家的php程序设计有所帮助。