[MySQL] [MySql] DB 백업
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2023-06-07 17:04
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<?php
/**
* Updated: IT HUB. heesung byeon
* Website: program1472.com
*/
//MySQL server and database
$dbhost = 'localhost';
$dbuser = '로그인아이디';
$dbpass = '로그인비번';
$dbname = isset($_GET['db_nm'])?$_GET['db_nm']:'*';
$tables = isset($_GET['tb_nm'])?$_GET['tb_nm']:'*';
//Call the core function
backup_tables($dbhost, $dbuser, $dbpass, $dbname, $tables);
//Core function
function backup_tables($host, $user, $pass, $databases = '*', $tables = '*') {
$con = mysqli_connect($host,$user,$pass);
// Check connection
if (mysqli_connect_errno())
{
echo "Failed to connect to MySQL: " . mysqli_connect_error();
exit;
}
if($databases == '*'){
$databases = array();
$result = mysqli_query($con, 'SHOW DATABASES');
while($row = mysqli_fetch_row($result))
{
$databases[] = $row[0];
}
} else {
$databases = is_array($databases) ? $databases : explode(',',$databases);
}
foreach($databases as $database)
{
mysqli_select_db($con, $database);
mysqli_query($con, "SET NAMES 'utf8'");
$table_array = array();
//get all of the tables
if($tables == '*')
{
$result = mysqli_query($con, 'SHOW TABLES');
while($row = mysqli_fetch_row($result))
{
$table_array[] = $row[0];
}
}
else
{
$table_array = is_array($tables) ? $tables : explode(',',$tables);
}
$return = '';
//cycle through
foreach($table_array as $table)
{
$result = mysqli_query($con, 'SELECT * FROM '.$table);
if ($result){
$num_fields = mysqli_num_fields($result);
$num_rows = mysqli_num_rows($result);
$return.= 'DROP TABLE IF EXISTS '.$table.';';
$row2 = mysqli_fetch_row(mysqli_query($con, 'SHOW CREATE TABLE '.$table));
$return.= "\n\n".$row2[1].";\n\n";
$counter = 1;
//Over tables
for ($i = 0; $i < $num_fields; $i++)
{ //Over rows
while($row = mysqli_fetch_row($result))
{
if($counter == 1){
$return.= 'INSERT INTO '.$table.' VALUES(';
} else{
$return.= '(';
}
//Over fields
for($j=0; $j<$num_fields; $j++)
{
$row[$j] = addslashes($row[$j]);
$row[$j] = str_replace("\n","\\n",$row[$j]);
if (isset($row[$j])) { $return.= '"'.$row[$j].'"' ; } else { $return.= '""'; }
if ($j<($num_fields-1)) { $return.= ','; }
}
if($num_rows == $counter){
$return.= ");\n";
} else{
$return.= "),\n";
}
++$counter;
}
}
$return.="\n\n\n";
}
}
//save file
// $fileName = 'db-backup-'.$database.'-'.time().'-'.(md5(implode(',',$tables))).'.sql';
$fileName = 'db/backup-'.$database.'-'.time().'.sql';
$handle = fopen($fileName,'w+');
fwrite($handle,$return);
if(fclose($handle)){
echo "Done, the file name is: ".$fileName.'\r\n<br>';
// exit;
}
}
}
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