--all-databases backup

[Jas]

This isn't working.

echo system("$path mysqldump --all-databases> all_databases.sql");

It creates a file, but it's contents are:

Usage: mysqldump [OPTIONS] database [tables]
OR mysqldump [OPTIONS] --databases [OPTIONS] DB1 [DB2 DB3...]
OR mysqldump [OPTIONS] --all-databases [OPTIONS]
For more options, use mysqldump --help

I'm running XAMPP 2.0 on Linux.

Edit: I also tried adding -HOST -uUSERNAME -pPASSWORD, and that didn't work, and I tried using the MySQL_connect() function, and that didn't work.

[NXArmada]

<?php
include 'config.php';
include 'opendb.php';

$backupFile = $dbname . date("Y-m-d-H-i-s") . '.gz';
$command = "mysqldump --opt -h $dbhost -u $dbuser -p $dbpass --all-databases | gzip > $backupFile";
system($command);
include 'closedb.php';
?>

[Jas]

Thanks for the response.

I saw that page, and I still couldn't figure it out. For one, what's the contents of the included files? I imagine a MySQL connect and close in two of them, but what's the third?

[NXArmada]

Config.php

<?php
// This is an example of config.php
$dbhost = 'localhost';
$dbuser = 'root';
$dbpass = 'password';
$dbname = 'phpcake';
?>

opendb.php

<?php
// This is an example opendb.php
$conn = mysql_connect($dbhost, $dbuser, $dbpass) or die                      ('Error connecting to mysql');
mysql_select_db($dbname);
?>

closedb.php

<?php
// an example of closedb.php
// it does nothing but closing
// a mysql database connection

mysql_close($conn);
?>

[Jas]

Thank you very much! So you have to connect to MySQL and include the information in the --all-databases command? I'll try and see what happens.

[Jas]

This still didn't work:

<?php
    $conn = MySQL_connect('localhost','username','password');
    MySQL_select_db('a_db');
    system("/opt/lampp/bin/mysqldump mysqldump --opt -h localhost -u username -p password --all-databases > backup.sql")
    or die('DID NOT WORK!');
    MySQL_close($conn);
?>

It prints:

DID NOT WORK!

And backup.sql's contents are:

Usage: mysqldump [OPTIONS] database [tables]
OR mysqldump [OPTIONS] --databases [OPTIONS] DB1 [DB2 DB3...]
OR mysqldump [OPTIONS] --all-databases [OPTIONS]
For more options, use mysqldump --help

[NXArmada]

You have mysqldump 2x's

/opt/lampp/bin/mysqldump mysqldump 

remove the second mysqldump at the end

[Jas]

Thanks again, but now the file "backup.sql" is completely empty. Am I doing something else wrong?

[Jas]

Thank you again for all of your help. After a few hours googling through forum after forum, I found the answers I was looking for-- turns out I had more then one problem. Some were related to the script, others were the server configurations. In any case, it works, so I'm happy