Question

I am trying to write a Database Query to a file, But am just wondering how I get the SQL Data to be input into the file.

It is currently outputting nothing to the .txt file at all. I suspect its something to do with the while loop and am questioning whether it needs to be there or not.

My code is :

function backup_tables($host,$user,$pass,$name,$tables = '*')
{

$link = mysql_connect($host,$user,$pass);
mysql_select_db($name,$link);

$query = "SELECT gamename, username, MAX(thescore)
          FROM game_scores
          GROUP BY gamename, username
          ORDER BY gamename, thescore DESC";

$result = mysql_query($query);

while($row = mysql_fetch_array($result)) {
    $scoredata = $row;
}


//save file
$handle = fopen('scores/games-backup'.'.txt','w+');
fwrite($handle,$scoredate);
fclose($handle);

echo "Success";
 }

Any help on writing the SQL Results to this text file would be much appreciated.

Answer 1

$row is an array, you will need to make it a string before you can write it to a file, you can use implode().

$scoredata is also being overwritten in each loop, maybe use $scoredata[] instead

while($row = mysql_fetch_array($result)) {
    $scoredata[] = implode("; ", $row);
}

This will make $scoredata an array also, so you will need to convert that to a string too!

$handle = fopen('scores/games-backup'.'.txt','w+');
fwrite($handle,implode("\r\n", $scoredata));
fclose($handle);

This should print each database row on a new line in the file.

EDIT: This will just be a text file, formatted as text, not that great for a backup file. You will need to structure the text into an SQL format to make it useful..