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PHP实现导入大SQL文件

Jun 06, 2016 pm 08:11 PM
mysql php sql accomplish import number document

对于mysql的大量数据导入导出,直接在服务器上使用命令,会很方便快捷,但是有时候我们不能总结直接调用命令来实现,此时我们可以使用一个脚本语言作为调用这个命令的中介,这里我是用的是php里面的system函数。 system使用说明: string? system ?(?string?

对于mysql的大量数据导入导出,直接在服务器上使用命令,会很方便快捷,但是有时候我们不能总结直接调用命令来实现,此时我们可以使用一个脚本语言作为调用这个命令的中介,这里我是用的是php里面的system函数。

system使用说明:
string?system?(?string?$command?[,?int?&$return_var?] )

command: 执行的命令
return_var: 如果return_var存在,则为执行命令完后返回的结果
函数返回的结果为命令输出的最后一行。

举例:

<?php // Outputs all the result of shellcommand "ls", and returns
// the last output line into $last_line. Stores the return value
// of the shell command in $retval.
$last_line = system&#40;'ls', $retval&#41;;
 
// Printing additional info
echo 'Last line of the output: ' . $last_line;
echo 'Return value: ' . $retval;
?>
Copy after login

所以如果需要通过php导入大数据,可以使用:

<?php system&#40; "mysql -hDbhost -uDbuser -pPassword Dbname < backup.sql" &#41;; 
print  "导入成功" ; 
?>
Copy after login

Dbhost 改为您的数据库服务器地址
Dbuser 改为您的数据库用户名
Password 改为您的数据库用户密码
Dbname 改为您的数据库名
backup.sql 导入的sql文件

3.在浏览器里面访问mysql.php即可完成导入,同理如果需要导出sql语句也可以使用system命令来完成,其执行的时间相对比较快。

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