What does this icon mean. I know my question must be answer even without the image but how hahaha, Im creating a database, do I need additional code in my php to create connection with my database? "fcm" and "fcm_db" are my databases, I created it and I think somehow it auto generated that "fcm" that I highlightened.
It is a Group icon.
It displays when two or more databases start with the same name (prefix).
It has no effect on the database connection or anything.
For your php code you need to specify the server where your database is located, then the username, and password this an example:
$dbname="fcm";
$servername="localhost"
$username = "root";
$password = "";
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
else
$conn->query($sql);
Related
I'm attempting to make a login system, and am hosting it on a web server using Namecheap. I decided to use the Cpanel MySQL Databases to save the login values (username, password, etc.), however, I haven't been able to add values to the MySQL databases. I can easily manually add to the databases, but how do I add using code (preferably python, but any language works as well).
I don't have any previous attempts because I haven't found anything showing how to do this.
I found a solution using php, which works just as well as it would in python.
<?php
$username = $_POST['username'];
$password = $_POST['password'];
$servername = "localhost";
$server_username = "animfqrw_loginUsername";
$server_password = "loginPassword";
$dbname = "animfqrw_userLogin";
$userID = 1;
//Connects to the mysql database
$conn = new mysqli($servername, $server_username, $server_password, $dbname);
//Ends php code if php fails to connect to mysql database
if ($conn->connect_error) {
die("Error");
break;
}
//Finds the last User_ID
$sql = "SELECT User_ID FROM Users ORDER BY User_ID DESC LIMIT 1;";
$result = $conn->query($sql);
//Fetches the last User ID so that the User ID's are all in order
while($row = $result->fetch_assoc()) {
$userID = $row["User_ID"] + 1;
}
//Add's the row to the mysql database
$sql = "INSERT INTO Users (User_ID, Username, Password)
VALUES ($userID, '$username', '$password')";
$conn->query($sql);
?>
Please can someone help? The code below seems to work and gives no errors, but when I check the database, it hasn't added anything. Tearing my hair out!
<?php
$bcode = $_GET['barcode'];
$businessid = $_GET['businessid'];
$servername = "---------";
$username = "-------";
$password = "-------";
// Create connection
$conn = new mysqli($servername, $username, $password);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$sql = "INSERT INTO 'db741921215'.'Scans' (Barcode, Success, Business) VALUES ('".$barcode."', 'Y', '".$businessid."')";
$con->close();
} ?>
The columns in table 'Scans' is as below:
Help is very, very much appreciated!!!
I see a couple things - use backticks "`" around your table name definitions, not single quotes. Also, save yourself some eye strain and use the fact that PHP interpolates variables just fine within doublequoted strings.
$sql = "INSERT INTO `db741921215`.`Scans`
(Barcode, Success, Business)
VALUES
('$barcode', 'Y', '$businessid')";
Also - you never actual execute the query, do you?
$conn->query($sql);
You seem to be missing the step where you execute the sql statement
I can see where you define it but I don't see where it's executed. i.e.
$conn->query($sql);
Also, you seem to be missing a letter when closing the connection: $con->close() should be $conn->close();
I've created an admin panel on my website so when the admin logs in he can edit users. I'm trying to get it to create a table that displays a list of all the users on the database, however, when I run it I get the error:
No database selected
Here is the code in my editusers.php:
<?php
include 'adminpage.php';
include 'connection.php';
$sql = "SELECT * FROM Users";
$result = mysql_query($sql)or die(mysql_error());
echo "<table>";
echo "<tr><th>UserID</th><th>First Name</th><th>Last Name</th><th>Email</th><th>D-O-B</th></tr>Username</th><th>Password</th><th>";
while($row = mysql_fetch_array($result)){
$userid = $row['UserID'];
$firstname = $row['FirstName'];
$lastname = $row['LastName'];
$email = $row['Email'];
$dob = $row['DateofBirth'];
$username = $row['Username'];
$password = $row['Password'];
// Now for each looped row
echo "<tr><td style='width: 200px;'>".$userid."</td><td style='width: 200px;'>".$firstname."</td><td>".$scale."</td><td>".$lastname."</td><td>".$email."</td></tr>".$dob."</td></tr>".$username."</td></tr>".$password."</td></tr>";
} // End our while loop
echo "</table>"
?>
First of all it looks like you are using mysql which isn't a wise move. This is because Mysql is actually deprecated and was improved to mysqli. Your problem may be to do with your database connection. You also haven't set a database. Like I said you can set an active database in your connection script. It should or could look something like this.
<?php
$conn = mysqli_connect("localhost", "root", "password", "database");
// Evaluate the connection
if (mysqli_connect_errno()) {
echo mysqli_connect_error();
exit();
}
?>
After that, your sql query is correct by selecting all from you table 'users' but in order to proceed I recommend creating a query where you use mysqli_query an select the $sql and $conn as parameters. In all honesty it is much advised to stop and continue once you have adapted to mysqli. Alternatively you can use PDO which in some cases can be seen as better to use rather than mysqli but the choice is yours. I personally would get to grips with mysqli and then look at some answers on Stack Overflow to decide whether you should use PDO or not. Visit the PHP manual here. Enter all the mysql functions you know and it will show you how to use the new mysqli version of the functions. Don't think that it is as simple as just adding and 'i' to the end of a mysql function. That's what I initially thought but there is alot to do with extra parameters etc. Hope this helps :-)
Whenever I use a seperate file to store DB connection details:
<?
$username = "xxx";
$password = "xxx";
$database = "xxx";
?>
To use in my connection string, I can never get it to work. I have to embed the details in the connection string itself.
// Opens a connection to a mySQL server
$connection=mysql_connect ('xxx', 'xxx', 'xxx');
if (!$connection) {
die("Not connected : " . mysql_error());
}
// Set the active mySQL database
$db_selected = mysql_select_db('xxx', $connection);
if (!$db_selected) {
die ("Can\'t use db : " . mysql_error());
}
Can anyone please tell me why I have to do that? I'd really like to keep my details in a seperate file.
Thankyou
include_once('path_to_the_file/db_details.php')
You have to include the file.
Additionally, please don't use MySQL, but MySQLi, or PDO. MySQL is deprecated and not maintained any more.
I'm quite new to databases and have no idea where I have gone wrong. Please help me find out why I can't connect to my database.
I'm getting an error with Dreamweaver - Dynamicaly-related files cannot be discovered because there is no site definition for this document
My Site root is located in htdocs.
the main file I'm trying to run is "dataquery.php" - htdocs/LetsPlays/dataquery.php
<?php
include 'includes/databaseform.php';
$query = "SELECT * FROM userchanel";
$result = mysql_query($query);
while($person = mysql_fetch_array($result));
{
echo $person['chanelurl'];
}
?>
Dataquery is connected to "databaseform.php" - htdocs/LetsPLays/includes/databaseform.php
<?php
$dbhost = 'localhost';
$dbuser = 'root';
$dbpass ='';
$db = 'mysql_tut';
$conn = mysql_connect($dbhost,$dbuser,$dbpas);
mysql_select_db($userchanel);
?>
So I'm trying to connect to userchanel table through user tbl
screenshot: http://imageshack.us/f/23/usertbl.png/
Files run through wordpress are set up to run on 127.0.0.1
Please help me.
Sorry for the noobishness! I have no idea what I'm missing!
When I run the html file all I get is a blank page!
Replace the line
$conn = mysql_connect($dbhost,$dbuser,$dbpas);
with
$conn = mysql_connect($dbhost,$dbuser,$dbpass);
notice the double 's' on $dbpass, also if I may you should not rely on deprecated features when writing new code, use PDO instead, also don't login to db as root, create a user, don't be lazy, with that your database connection code should like:
<?php
$db = new PDO('mysql:dbname=databasename', 'username', 'password',
array(PDO::MYSQL_ATTR_INIT_COMMAND => "SET NAMES utf8"));
the init command is not actually necessary I just included it cause I always use it, while the querying could be done as
<?php
include 'includes/databaseform.php';
$query = $db->prepare("SELECT * FROM userchanel");
$query->execute();
while(($person = $query->fetch(PDO::FETCH_ASSOC)) !== false);
{
echo $person['chanelurl'];
}
If you're only using one column you should fetch only that as below:
<?php
include 'includes/databaseform.php';
$query = $db->prepare("SELECT chanelurl FROM userchanel");
$query->execute();
while(($channelurl = $query->fetch(PDO::COLUMN)) !== false);
{
echo $channelurl;
}
I didn't include closing braces for php code as they are not necessary also do some error checking var_dump($db->errorInfo()); and var_dump($query->errorInfo()); - didn't include this in the code as I only use them in checking any issues with my code, good luck!
instead of htdocs/LetsPlays/dataquery.php
try localhost/dataquery.php
I recommend you to make and additional file for database connection and include it anywhere you need. Because when you need to push project live you need to change in every file incase file is includeed you need to change just at one place and it effects every where connection for localhost is
<?php
// Replace the variable values below
// with your specific database information.
$host = "localhost";
$user = "root";
$pass = "";
$db = "yourdatabase";
// This part sets up the connection to the
// database (so you don't need to reopen the connection
// again on the same page).
$ms = mysql_pconnect($host, $user, $pass);
if ( !$ms )
{
echo "Error connecting to database.\n";
}
// Then you need to make sure the database you want
// is selected.
mysql_select_db($db);
?>
Save all the above code in one file save it as dbConfig.php and include it any where
like
include ("dbConfig.php");
Now in that file you are connected to db you can interact with database.