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PHP數(shù)據(jù)庫備份腳本技巧

時(shí)間:2022-06-27 22:22:53 數(shù)據(jù)庫操作系統(tǒng)

PHP數(shù)據(jù)庫備份腳本技巧

  代碼如下:

  // 備份數(shù)據(jù)庫

  $host = "localhost";

  $user = "root"; //數(shù)據(jù)庫賬號(hào)

  $password = ""; //數(shù)據(jù)庫密碼

  $dbname = "mysql"; //數(shù)據(jù)庫名稱

  // 這里的賬號(hào)、密碼、名稱都是從頁面?zhèn)鬟^來的

  if (!mysql_connect($host, $user, $password)) // 連接mysql數(shù)據(jù)庫

  {

  echo 數(shù)據(jù)庫連接失敗,請(qǐng)核對(duì)后再試;

  exit;

  }

  if (!mysql_select_db($dbname)) // 是否存在該數(shù)據(jù)庫

  {

  echo 不存在數(shù)據(jù)庫: . $dbname . ,請(qǐng)核對(duì)后再試;

  exit;

  }

  mysql_query("set names utf8");

  $mysql = "set charset utf8; ";

  $q1 = mysql_query("show tables");

  while ($t = mysql_fetch_array($q1))

  {

  $table = $t[0];

  $q2 = mysql_query("show create table `$table`");

  $sql = mysql_fetch_array($q2);

  $mysql .= $sql[Create Table] . "; ";

  $q3 = mysql_query("select * from `$table`");

  while ($data = mysql_fetch_assoc($q3))

  {

  $keys = array_keys($data);

  $keys = array_map(addslashes, $keys);

  $keys = join(`,`, $keys);

  $keys = "`" . $keys . "`";

  $vals = array_values($data);

  $vals = array_map(addslashes, $vals);

  $vals = join(",", $vals);

  $vals = "" . $vals . "";

  $mysql .= " into `$table`($keys) values($vals); ";

  }

  }

  $filename = $dbname . date(Ymjgi) . ".sql"; //存放路徑,默認(rèn)存放到項(xiàng)目最外層

  $fp = fopen($filename, w);

  fputs($fp, $mysql);

  fclose($fp);

  echo "數(shù)據(jù)備份成功";

  ?>

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