Sql Backup error

[borlandology]

Mysql_backup_class.php is:

class mysql_backup
	{
	//---- Class Variables.
	//---------------------
	var $host; //---- host name e.g. localhost
	var $db; //---- db name
	var $user; //---- db username
	var $pass; //---- db password
	var $output; //---- file name(sqldata.txt)
	var $structure_only; //---- Outpu
	}

Relevant part of backup.php is:

	include 'mysql_backup.class.php';

$output = "backup.txt";

$structure_only = false;

$backup = new mysql_backup($host,$db,$user,$pass,$output,$structure_only);		

[B]$[COLOR="Blue"]backup->$backup();[/COLOR][/B]


$ziper = new zipfile(); 

$ziper->addFiles(array("./backup.txt"));  //array of files 

$ziper->output("back.zip"); 

print '<a href="./back.zip">Download Now</a>';

And when i refresh backup page it says:

Fatal error: Method name must be a string in C:\xampp\htdocs\300tomani\admin\index.php on line 25 (The line i made it colored-> $backup....)

and if i comment that line out this time whenever i want to download back.zip (backedup D😎 it gives me a 22Bytes zipped file with nothing inside.

[bradgrafelman]

$backup->$backup();

What you're telling PHP to do is here use the value of the variable $backup and call the method with that name. Since $backup is actually an object, this doesn't make any sense (unless, of course, that object had a __toString magic method).

Did you perhaps mean to use the method named 'backup' instead? If so, why did you prepend it with a dollar sign?

[borlandology]

Did u mean this: $backup->backup;
If yes there no change in result , the same zip file with same size, any other change resulted in error messages.

$backup->backup() :
Fatal error: Call to a member function backup() on a non-object in C:\xampp\htdocs\300tomani\admin\index.php on line 25

backup->$backup() :
Parse error: parse error in C:\xampp\htdocs\300tomani\admin\index.php on line 28

i searched but because i'm newbie, i couldn't find out how to use __toString.
would u please write the correct code for me? thanks

[bradgrafelman]

borlandology wrote:

Did u mean this: $backup->backup;

No, that would refer to a property named 'backup', not a method named 'backup' that actually does something.

borlandology wrote:

Fatal error: Call to a member function backup()

Sounds like either you don't know the correct name of the method you're wanting to call, or you mistyped something.

In regards to the above, you showed us this:

class mysql_backup
	{
	//---- Class Variables.
	//---------------------
	var $host; //---- host name e.g. localhost
	var $db; //---- db name
	var $user; //---- db username
	var $pass; //---- db password
	var $output; //---- file name(sqldata.txt)
	var $structure_only; //---- Outpu
	}

but that class has no methods - it's just a collection of variables. If that's the entire class definition (e.g. you didn't omit member functions below the member variable declarations in that code), then I'm confused why you're trying to call this "backup()" method in the first place.

borlandology wrote:

would u please write the correct code for me?

No, for a few reasons... most importantly: 1) I have no idea what you're trying to do, 2) I have no idea what all of your code looks like, and 3) I do enough of that at work.

[borlandology]

Oh thanks man, u know i didn't write the script.
actually it's a pre-wrote script i'm using to manipulate to get more familiar with PHP.
So that backup thing was there heretofore.