I am using PHP to backup MySQL database. But my code only works on command line (command: php index.php). If I execute it on browser, the dump file not generate. here is my code:
<?php
$dbhost = 'localhost';
$dbuser = 'root';
$dbpass = 'password';
$dbname = 'otoworks';
$backup_file = $dbname . date("Y-m-d-H-i-s") . '.gz';
$command = "/usr/bin/mysqldump --opt -h $dbhost -u $dbuser -p$dbpass $dbname | gzip > $backup_file";
exec($command);
?>
My php run on apache 2.2.3, centos 6. php.ini (safe_mode = Off).
Thanks in advance
Related
I'm trying to write a PHP code that will backup my SQL database daily. However, running it using a Cron Job spits out the above error in the title. My server is hosted on hostgator and its a shared server.
The dbuser has all privileges granted.
Here's my code:
$dbhost = 'localhost';
$dbuser = 'XXXX';
$dbpass = 'XXXX';
$backupFile = $dbname . date("Y-m-d-H-i-s") . '.gz';
$command = "mysqldump --opt -h $dbhost -u $dbuser -p $dbpass $dbname | gzip > $backupFile";
system($command);
Any help would be much appreciated!
The following code worked for me:
$DBUSER="XXX";
$DBPASSWD="XXXX";
$DATABASE="XXXXX";
$filename = "backup-" . date("d-m-Y") . ".sql.gz";
$cmd = "mysqldump -u $DBUSER --password=$DBPASSWD $DATABASE | gzip --best > $filename";
passthru( $cmd );
exit(0);
your problem is the space between "-p" and $dbpass. The command mysqldump hopes "-ppassword" together (the response is "using password: no" for this).
Try:
$command = "mysqldump --opt -h $dbhost -u $dbuser -p$dbpass $dbname | gzip > $backupFile";
After a database is successfully inserted with data, I want now to backup the database. Since this is a script done in codeigniter, I created this function below.
This is bugging me for a while. I want to execute a php script that contains command line.
Here is my code:
public function backupDb()
{
log_message('debug', 'Preparing to Back-up Database...');
$dbuser = "root";
$dbpass = "root#111";
$dbname = "listingdb";
$dumpfile = $dbname . "_" . date("Ymd") . ".sql";
$command = "mysqldump -u $dbuser -p$dbpass $dbname > $dumpfile";
exec($command);
}
I tried manually doing this code;
mysqldump -u root -proot#111 listingdb > listingdb_20171013.sql
and it Successfully creates a .sql file
But my function seems to not work. How can I do it right?
I need one script that when I open the script.php page for example, that export me one database from MySQL to an SQL document, and I don't know how to do it in PHP, can some one help me with that?
Edited Code:
<?php
$dbhost = "localhost";
$dbuser = "root";
$dbpwd = "";
$dbname = "activmanagement";
$dumpfile = $dbname . "_" . date("Y-m-d_H-i-s") . ".sql";
passthru("D:/wamp/bin/mysql/mysql5.6.17/bin/mysqldump --opt --host=$dbhost --user=$dbuser --password=$dbpwd $dbname > $dumpfile");
// report - disable with // if not needed
// must look like "-- Dump completed on ..."
echo "$dumpfile "; passthru("tail -1 $dumpfile");
?>
This line:
passthru("D:/wamp/bin/mysql/mysql5.6.17/bin/mysqldump --opt --host=$dbhost --user=$dbuser --password=$dbpwd $dbname > $dumpfile");
Refer PHP - exec() vs system() vs passthru(). You just need something like this
<?php
$dbhost = 'localhost';
$dbuser = 'root';
$dbpass = '';
$dbname = 'activmanagement';
$sql_backup_file = $dbname . date("Y-m-d-H-i-s") . '.gz';
$dump = "mysqldump --opt -h $dbhost -u $dbuser -p $dbpass $dbname | gzip > $sql_backup_file";
system($dump);
?>
I am trying to use PHP to backup and restore a MySQL database:
Backup:
$dbhost = 'localhost';
$dbuser = 'root';
$dbpass = 'dbpass';
$dbname = 'test';
$output = "D:/backup/test.sql";
exec("D:/xampp/mysql/bin/mysqldump --opt -h $dbhost -u $dbuser -p $dbpass $dbname > $output");
echo "Backup complete!";
Restore:
$dbhost = 'localhost';
$dbuser = 'root';
$dbpass = 'dbpass';
$dbname = 'test';
$output = "D:/restore/test.sql";
exec("D:/xampp/mysql/bin/mysql --opt -h $dbhost -u $dbuser -p $dbpass $dbname < $output");
echo "Restore complete!";
But both are not working. When Backup is complete then I check test.sql file that is blank. When the restore is complete, the database is still blank.
How can I fix this?
Script to backup using Php
<?php
define("BACKUP_PATH", "/home/abdul/");
$server_name = "localhost";
$username = "root";
$password = "root";
$database_name = "world_copy";
$date_string = date("Ymd");
$cmd = "mysqldump --routines -h {$server_name} -u {$username} -p{$password} {$database_name} > " . BACKUP_PATH . "{$date_string}_{$database_name}.sql";
exec($cmd);
?>
Script to restore
<?php
$restore_file = "/home/abdul/20140306_world_copy.sql";
$server_name = "localhost";
$username = "root";
$password = "root";
$database_name = "test_world_copy";
$cmd = "mysql -h {$server_name} -u {$username} -p{$password} {$database_name} < $restore_file";
exec($cmd);
?>
i have only ftp credentials in which i am using this script
$r="mysqldump $dbuser $dbpass $dbname wp_posts > table1.sql";
system($r);
but unfortunatly m getting a blank result in table1.sql
You need to add the option switches to your command, see the mysqldump manual, like this
$r="mysqldump -u $dbuser -p $dbpass $dbname wp_posts > table1.sql";
finally i got the solution, here is my code:
<?php
$username = "abc";
$password = "xyz";
$hostname = "domain.com";
$database = "test_db";
$username =escapeshellcmd($username);
$password =escapeshellcmd($password);
$hostname =escapeshellcmd($hostname);
$database =escapeshellcmd($database);
$backupFile='url'.date("Y-m-d-H-i-s").$database.'.sql.tgz';
$command = "mysqldump -u$username -p$password -h$hostname $database wp_posts > $backupFile";
system($command, $result);
echo $result;
?>
thnx for your support, really appreciate it.
if the user has the permissions try this:
mysqldump -u$dbuser -p$dbpass $dbname wp_posts > table1.sql
to specify the parameters (which is the user and which is the password)
I think it's
mysqldump -u $dbuser -p $dbpass $dbname wp_posts
Apache user needs to have the permission to write table1.sql and also execute mysqldump command. If on shared hosting, this is doubtful.