Looping through mysql database

Question

I have series of mysql databases on my server. The names of these databases are stored in a separate database table (users) - column(dbname) . I want to loop through table (user

Answer 1

i would do something like this, good luck! :

function dbConnect($location, $username, $password, $database) {
    $conn = mysql_connect($location, $username, $password); 
    if (!$conn) die ("Could not connect MySQL"); 
    mysql_select_db($database, $conn) or die ("Could not open database ".$database);
}
#######
# Connexion to databases containing users (add your own fields)
#######


dbConnect('localhost', 'root', '', 'databases');

$sql = "SELECT * FROM users";
$result = mysql_query($sql);
$numrows = mysql_num_rows($result);

#######
# Looping to establish connexion to db1 and db2
#######
while($row = mysql_fetch_array($result)) {
    dbConnect('localhost', $row["user"], $row["pass"], $row["db"]);
}

#######
# At this point, the connexion is established to LOCAHOST[DATABASES], LOCALHOST[DB1], LOCALHOST[DB2]
#######

$sql = "SELECT * FROM databases.users";
$result = mysql_query($sql);
$numrows = mysql_num_rows($result);
while($row = mysql_fetch_array($result)) {
    print "
";
    print_r($row);
    print "
";
}
/*
Array
(
    [id] => 1
    [user] => root
    [pass] => 
    [db] => db1
)
Array
(
    [id] => 2
    [user] => root
    [pass] => 
    [db] => db2
)
*/

$sql = "SELECT * FROM db1.infos";
$result = mysql_query($sql);
$numrows = mysql_num_rows($result);
while($row = mysql_fetch_array($result)) {
    print "
";
    print_r($row);
    print "
";
}
/*
Array
(
    [id] => 1
    [name] => John
    [age] => 26
)
Array
(
    [id] => 2
    [name] => Henri
    [age] => 34
)
*/

$sql = "SELECT * FROM db2.infos";
$result = mysql_query($sql);
$numrows = mysql_num_rows($result);
while($row = mysql_fetch_array($result)) {
    print "
";
    print_r($row);
    print "
";
}
/*
Array
(
    [id] => 1
    [name] => Paul
    [age] => 30
)
Array
(
    [id] => 2
    [name] => Scott
    [age] => 39
)
*/