[英]Restoring mysql database gives errors
我正在尝试使用以下代码从http://www.a2zwebhelp.com/php-script-to-import-mysql-database还原数据库,但是我收到“错误:查询为空”我在哪里出错?
ps从phpmyadmin导入sql文件达到了目的,但是不能使用它。
<?php
include 'connect.php';
$filename = 'DB_Backups/db-backup-08-04-14-08-39-16.sql';
$templine = '';
$lines = file($filename); //Read entire file
foreach($lines as $line){
if(substr($line, 0, 2) == '--' || $line == '') //Skip all comments
$templine.=$line;
if(substr(trim($line), -1, 1) == ';'){
mysql_query($templine) or print('Error: '.mysql_error().'<br>');
$templine = '';
}
}
?>
好吧,其中之一,这部分代码不会跳过注释,而是将它们直接添加到$templine
:
if(substr($line, 0, 2) == '--' || $line == '') //Skip all comments
$templine.=$line;
其次,在这里您尝试使用$templine
分配的$templine
执行查询(如果曾经分配过,否则以''
),在这里您实际上要使用$line
执行查询:
if(substr(trim($line), -1, 1) == ';'){
mysql_query($templine) or print('Error: '.mysql_error().'<br>');
因此,基本上这应该更好一些:
foreach($lines as $line){
if(substr($line, 0, 2) == '--' || $line == '') //Skip all comments
continue;
if(substr(trim($line), -1, 1) == ';'){
mysql_query(trim($line)) or print('Error: '.mysql_error().'in ' . $line . '<br>');
}
}
稍有改进,就可以了:) @avouretti感谢您的提示。
<?php
// Name of the file
$filename = 'DB_Backups/'.$name;
// Temporary variable, used to store current query
$templine = '';
// Read in entire file
$lines = file($filename);
// Loop through each line
foreach ($lines as $line)
{
// Skip it if it's a comment
if (substr($line, 0, 2) == '--' || $line == '')
continue;
// Add this line to the current segment
$templine .= $line;
// If it has a semicolon at the end, it's the end of the query
if (substr(trim($line), -1, 1) == ';')
{
// Perform the query
mysql_query($templine) or print('Error performing query \'<strong>' . $templine . '\': ' . mysql_error() . '<br /><br />');
// Reset temp variable to empty
$templine = '';
}
}
?>
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