Input Values are not going to the database? - php

Question

I'm super new to PHP mysql database, can someone help me out how can I make my input appear on the database. This is just a sample I'm testing. I don't know what I'm doing wrong I have all the information from the server inputed it at the right place. I'm getting a messages that it was successful but nothing is going to my database. I have one file called connect.php where the php is and the index.php for the html, table is name cultivar_db. Thanks in advance.
NOTE: Im connecting to my real server.
Structure
1 cultivar_idPrimary int(11) No None AUTO_INCREMENT
2 cultivar_name varchar(20) latin1_swedish_ci No None
Heres the complete details in the database
<?php
$servername = "localhost";
$username = "myusername";
$password = "*****";
$dbname = "mydbname";
$cultivar_name = $_POST['cultivar_name'];
//Database Connection
$conn = new mysqli($servername, $username, $password, $dbname);
if($conn->connect_error){
die('Connection Failed : ' . $conn->connect_error);
}else{
$stmt = $conn->prepare("INSERT INTO cultivar_db(cultivar_name)
values(?)");
$stmt->bind_param("s", $cultivar_name);
$stmt->execute();
echo "successfully input datas..";
$stmt->close();
$conn->close();
}
?>
<div class="box">
<form action="connect.php" method="post">
<label>Cultivar Name:</label>
<input class="inputstyle" type="text" name="cultivar_name"><br />
<input class="button inputstyle" type="submit" value="import" >
</form>
</div>

Answer 1

Three possible issues within
$stmt = $conn->prepare("INSERT INTO cultivar_db(cuttivar_id, cultivar_name) values(?,?,)");
The second , within the values might causes some trouble
Your ID field is set to AUTO INCREMENT, therefor no reason to insert it
You typed cuttivar_id in your SQL, instead of cultivar_id
If you created your table like this
CREATE TABLE cultivar_db (
cultivar_id NOT NULL AUTO_INCREMENT,
cultivar_name VARCHAR(20),
PRIMARY KEY (cultivar_id)
);
Then all you need for the insert is
$stmt = $conn->prepare("INSERT INTO cultivar_db(cultivar_name)
values(?)");
$stmt->bind_param('s', $cultivar_name);
$stmt->execute();

Answer 2

If your "cultivar_id" is auto-increment, you do not need to add that id from the HTML. You can simply pass the "cultivar_name" from HTML using $_POST.
$stmt = $conn->prepare("INSERT INTO cultivar_db(cultivar_name) values(?)");
$stmt->bind_param('s', $_POST['cultivar_name']);
$stmt->execute();

Answer 3

ok I'm a little late; but I hope to be still opportune; I won't add anything regarding syntax errors that other users have already told you to fix;
In my case I will leave you a working example of a database connection system and insert, each property and method has its PHPDOCS where a detailed explanation of the purpose or responsibility of the method is added; You will also notice that I have implemented the getter and setter of each private property:
db.php (file class)
<?php
class HandlerDataBase
{
/**
* #var string
* store the host server point
*/
private string $host;
/**
* #var string
* store database name
*/
private string $db;
/**
* #var string
* store the port connection point
*/
private string $port;
/**
* #var string
* store de username to implement in the connection to db server
*/
private string $user;
/**
* #var string
* password
*/
private string $password;
/**
* #param array $config
* #return void
* this method is implement to set the configuration to the database connection
*/
public function setConfigConnection(array $config)
{
foreach ($config as $key => $value) {
switch ($key) {
case 'host':
$this->setHost($value);
break;
case 'db':
$this->setDb($value);
break;
case 'port':
$this->setPort($value);
break;
case 'user':
$this->setUser($value);
break;
case 'password':
$this->setPassword($value);
break;
}
}
}
/**
* #return string
*/
public function getHost(): string
{
return $this->host;
}
/**
* #param string $host
*/
public function setHost(string $host): void
{
$this->host = $host;
}
/**
* #return string
*/
public function getDb(): string
{
return $this->db;
}
/**
* #param string $db
*/
public function setDb(string $db): void
{
$this->db = $db;
}
/**
* #return string
*/
public function getPort(): string
{
return $this->port;
}
/**
* #param string $port
*/
public function setPort(string $port): void
{
$this->port = $port;
}
/**
* #return string
*/
public function getUser(): string
{
return $this->user;
}
/**
* #param string $user
*/
public function setUser(string $user): void
{
$this->user = $user;
}
/**
* #return string
*/
public function getPassword(): string
{
return $this->password;
}
/**
* #param string $password
*/
public function setPassword(string $password): void
{
$this->password = $password;
}
/**
* #param string $query
* #param $value
* #return void
* this method implements a connection and executes the query script and the value passed.
* if there is an error it will be displayed, and execution will be stopped.
*/
public function setData(string $query, $value)
{
try {
$conn = $this->getConnection();
$conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$conn->beginTransaction();
$conn->exec("set names utf8");
$stmt = $conn->prepare($query);
$stmt->bindValue(1, $value);
$stmt->execute();
$conn->commit();
$conn->close();
} catch (PDOException|Exception $e) {
var_dump($e);
}
}
/**
* #return PDO
* this method create a connection to the db
*/
private function getConnection(): PDO
{
return new PDO("mysql:host=".$this->getDb().";port=".$this->getPort()." dbname=".$this->getDb(), $this->getUser(), $this->getPassword());
}
}
implementation:
<?php
require_once 'db.php';
$config = [
'host' => 'localhost',
'db' => 'my_db_name',
'port' => '3306',
'user' => 'my_username',
'pass' => '********',
];
if (!isset($_POST['cultivar_name']) || '' != $_POST['cultivar_name']) {
echo 'Error: not received cultivar name data';
exit();
}
$cultivar_name = $_POST['cultivar_name'];
$query = "INSERT INTO cultivar_db(cultivar_name) values(?)";
$handler_database = new HandlerDataBase();
$handler_database->setConfigConnection($config);
$handler_database->setData($query, $cultivar_name);
another way to handle the configuration to the connection to the database, can be with a specific external file, see this:
config.php
<?php
$config = [
'host' => 'localhost',
'db' => 'my_db_name',
'port' => '3306',
'user' => 'my_username',
'pass' => '********',
];
then your implementation would look like this:
<?php
require_once 'config.php';
require_once 'db.php';
if (!isset($_POST['cultivar_name']) || '' != $_POST['cultivar_name']) {
echo 'Error: not received cultivar name data';
exit();
}
$cultivar_name = $_POST['cultivar_name'];
$query = "INSERT INTO cultivar_db(cultivar_name) values(?)";
$handler_database = new HandlerDataBase();
$handler_database->setConfigConnection($config);
$handler_database->setData($query, $cultivar_name);