rush:PHP;">
PHP
/**
*
* @name PHP备份数据库
* @param string $DbHost 连接主机
* @param string $DbUser 用户名
* @param string $DbPwd 连接密码
* @param string $dbname 要备份的数据库
* @param string $saveFileName 要保存的文件名,默认文件保存在当前文件夹中,以日期作区分
* @return Null
* @example backupMysqLData('localhost','root','123456','Yourdbname');
*
*/
function backupMysqLData($DbHost,$DbUser,$DbPwd,$dbname,$saveFileName = '')
{
header("Content-type:text/html;charset=utf-8");
error_reporting(0);
set_time_limit(0);
echo '数据备份中,请稍候......<br />';
$link = <a href="https://www.jb51.cc/tag/MysqL/" target="_blank" class="keywords">MysqL</a>_connect($DbHost,$DbPwd) or die('<a href="https://www.jb51.cc/tag/shujuku/" target="_blank" class="keywords">数据库</a>连接失败: ' . <a href="https://www.jb51.cc/tag/MysqL/" target="_blank" class="keywords">MysqL</a>_error());
<a href="https://www.jb51.cc/tag/MysqL/" target="_blank" class="keywords">MysqL</a>_select_db($<a href="https://www.jb51.cc/tag/dbn/" target="_blank" class="keywords">dbn</a>ame) or die('<a href="https://www.jb51.cc/tag/shujuku/" target="_blank" class="keywords">数据库</a>连接失败: ' . <a href="https://www.jb51.cc/tag/MysqL/" target="_blank" class="keywords">MysqL</a>_error());
<a href="https://www.jb51.cc/tag/MysqL/" target="_blank" class="keywords">MysqL</a>_query('set names utf8');
// 声明变量
$isDropInfo = '';
$insert<a href="https://www.jb51.cc/tag/sql/" target="_blank" class="keywords">sql</a> = '';
$row = array();
$tables = array();
$tableStructure = array();
$fileName = ($saveFileName ? $saveFileName : '<a href="https://www.jb51.cc/tag/MysqL/" target="_blank" class="keywords">MysqL</a>_data_bakeup_') . date('YmdHis') . '.<a href="https://www.jb51.cc/tag/sql/" target="_blank" class="keywords">sql</a>';
// 枚举该<a href="https://www.jb51.cc/tag/shujuku/" target="_blank" class="keywords">数据库</a>所有的表
$res = <a href="https://www.jb51.cc/tag/MysqL/" target="_blank" class="keywords">MysqL</a>_query("SHOW TABLES FROM $<a href="https://www.jb51.cc/tag/dbn/" target="_blank" class="keywords">dbn</a>ame");
while ($row = <a href="https://www.jb51.cc/tag/MysqL/" target="_blank" class="keywords">MysqL</a>_fetch_row($res)) {
$tables[] = $row[0];
}
<a href="https://www.jb51.cc/tag/MysqL/" target="_blank" class="keywords">MysqL</a>_free_result($res);
// 枚举所有表的创建语句
foreach ($tables as $val) {
$res = <a href="https://www.jb51.cc/tag/MysqL/" target="_blank" class="keywords">MysqL</a>_query("show create table $val",$link);
$row = <a href="https://www.jb51.cc/tag/MysqL/" target="_blank" class="keywords">MysqL</a>_fetch_row($res);
$isDropInfo = "DROP TABLE IF EXISTS `" . $val . "`;\r\n";
$tableStructure = $isDropInfo . $row[1] . ";\r\n";
file_put_contents($fileName,$tableStructure,FILE_APPEND);
<a href="https://www.jb51.cc/tag/MysqL/" target="_blank" class="keywords">MysqL</a>_free_result($res);
}
// 枚举所有表的INSERT语句
foreach ($tables as $val) {
$res = <a href="https://www.jb51.cc/tag/MysqL/" target="_blank" class="keywords">MysqL</a>_query("select * from $val");
// 没有数据的表不执行insert
while ($row = <a href="https://www.jb51.cc/tag/MysqL/" target="_blank" class="keywords">MysqL</a>_fetch_row($res)) {
$<a href="https://www.jb51.cc/tag/sql/" target="_blank" class="keywords">sql</a>Str = "INSERT INTO `".$val."` VALUES (";
foreach($row as $v){
$<a href="https://www.jb51.cc/tag/sql/" target="_blank" class="keywords">sql</a>Str .= "'$v',";
}
//去掉最后<a href="https://www.jb51.cc/tag/yige/" target="_blank" class="keywords">一个</a>逗号
$<a href="https://www.jb51.cc/tag/sql/" target="_blank" class="keywords">sql</a>Str = substr($<a href="https://www.jb51.cc/tag/sql/" target="_blank" class="keywords">sql</a>Str,strlen($<a href="https://www.jb51.cc/tag/sql/" target="_blank" class="keywords">sql</a>Str) - 1);
$<a href="https://www.jb51.cc/tag/sql/" target="_blank" class="keywords">sql</a>Str .= ");\r\n";
file_put_contents($fileName,$<a href="https://www.jb51.cc/tag/sql/" target="_blank" class="keywords">sql</a>Str,FILE_APPEND);
}
<a href="https://www.jb51.cc/tag/MysqL/" target="_blank" class="keywords">MysqL</a>_free_result($res);
}
echo '数据备份成功!';
以上所述就是本文的全部内容了,希望大家能够喜欢。
原文地址:https://www.jb51.cc/php/22131.html
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