php导入sql文件
php导入sql文件
sql php
php导入sql文件
基本思路
1.打开sql文件,放入一个变量(字符串类型)其中
2.使用正则替换掉其中的凝视(“--”与“/**/”)
3.使用explode切割成为一个数组并去除每行的空格
4.链接数据库之后使用my_query()运行sql
代码
<?php// +------------------------------------------------------------------------------------------// | Author: longDD <longdd_love@163.com>// +------------------------------------------------------------------------------------------// | There is no true,no evil,no light,there is only power.// +------------------------------------------------------------------------------------------// | Description: import sql Dates: 2014-08-07// +------------------------------------------------------------------------------------------class ImportSql{/** @var $content 数据库连接 */protected $connect = null;/** @var $db 数据库对象 */protected $db = null;/** @var $sqlFile sql文件 */public $sqlFile = "";/** @array @sqlArr sql语句数组 */public $sqlArr = array();/*** 构造函数** @param string $host 主机地址* @param string $user username* @param string $pw password* @param $db_name 数据库名称* @return void*/public function __construct($host, $user, $pw, $db_name){/** 连接数据库 */$this->connect = mysql_connect($host, $user, $pw) or die("Could not connect: " . mysql_error());/** 选中数据库 */$this->db = mysql_select_db($db_name, $this->connect) or die("Yon can not select the table:" . mysql_error());}/*** 导入sql文件** @param string $url 文件路径* @return true 导入成返回true*/public function Import($url){if(!file_exists($url)){exit("文件不存在!
");}$this->sqlFile = file_get_contents($url);if (!$this->sqlFile){exit("打开文件错误!
");}else{$this->GetSqlArr();if ($this->Runsql()){return true;}}}/*** 获取sql语句数组** @return void*/public function GetSqlArr(){/** 去除凝视 */$str = $this->sqlFile;$str = preg_replace('/--.*/i', '', $str);$str = preg_replace('/\/\*.*\*\/(\;)?/i', '', $str);/** 去除空格 创建数组 */$str = explode(";\n", $str);foreach ($str as $v){$v = trim($v);if (empty($v)){continue;}else{$this->sqlArr[] = $v;}}}/*** 运行sql文件** @return true 运行成功返回true*/public function RunSql(){/** 开启事务 */if (mysql_query('BEGIN')){foreach ($this->sqlArr as $k => $v){if (!mysql_query($v)){/** 回滚 */mysql_query('ROLLBACK');exit("sql语句错误:第" . $k . "行" . mysql_error());}}/** 提交事务 */mysql_query('COMMIT');return true;}else{exit('无法开启事务!
');}}}// +------------------------------------------------------------------------------------------// | End of ImportSql class// +------------------------------------------------------------------------------------------/*** This is a example.*/header("Content-type:text/html;charset=utf-8");$sql = new ReadSql("localhost", "root", "", "log_db");$rst = $sql->Import("./log_db.sql");if ($rst){echo "Success。";}// +------------------------------------------------------------------------------------------// | End of file ImportSql.php// +------------------------------------------------------------------------------------------// | Location: ./ImportSql.php// +------------------------------------------------------------------------------------------
浙公网安备 33010602011771号