New to the concept of php custom function and was wondering how to build a custom function for INSERT
<?php
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "myDB";
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$sql = "INSERT INTO MyGuests (firstname, lastname, email)
VALUES ('John', 'Doe', 'john#example.com')";
if ($conn->query($sql) === TRUE) {
echo "New record created successfully";
} else {
echo "Error: " . $sql . "<br>" . $conn->error;
}
$conn->close();
?>
Can anyone help. Will appreciate if I can have link to a tutorial as well.
Here is a helpful tutorial for a begginer with Php. Hope this help:
http://alejoferguson.blogspot.com/2014/08/tutorial-php-mysql-recomendado_27.html
I would not recommend you to have server and password information on the same page your doing the query but rather to have it separately as is explained in this simple tutorial. ALso it provides you with the source code at the end of the tutorial.
Guide yourself by the images in this tutorial.
Related
on line 1 of my page i required the connection file before going on to write my code. at this point i think it is supposed to work but can not figure out why it didn't. please some one who knows better help me.
Can you help me with a sample PHP code for inserting data into mysql database using PHP, mysqli?
Thank you again in advance.
You can use this code for insert data to mysql DB using php and mysqli
<?php
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "myDB";
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$sql = "INSERT INTO MyGuests (firstname, lastname, email)
VALUES ('John', 'Doe', 'john#example.com')";
if ($conn->query($sql) === TRUE) {
echo "New record created successfully";
} else {
echo "Error: " . $sql . "<br>" . $conn->error;
}
$conn->close();
?>
I'm working in a web app with PHP and Postgresql. I`m looking for a PHP code to create a database online using a PHP form that sends the name, template, UTF8, etc.
Something like this for MYSQL but for with Postgresql:
<?php
$servername = "localhost";
$username = "username";
$password = "password";
// Create connection
$conn = new mysqli($servername, $username, $password);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
// Create database
$sql = "CREATE DATABASE myDB";
if ($conn->query($sql) === TRUE) {
echo "Database created successfully";
} else {
echo "Error creating database: " . $conn->error;
}
$conn->close();
?>
I have read a bunch of the other posts about similar issues but I am very new to this so I am likely missing something. Most of the other questions I found were a lot more complicated than mine. I am trying to follow the w3schools tutorial for this and am testing locally using XAMPP. Right now I am just trying to get this to work successfully and eventually I am planning to submit data into a mySQL database from a web form.
<?php
$servername="localhost";
$dbname="mysql";
// Create connection
$conn = mysqli_connect($servername, $dbname);
// Check connection
if (!$conn) {
die("Connection failed: " . mysqli_connect_error());
}
$sql = "INSERT INTO owner_table (ownerFirst, ownerLast, mobile)
VALUES ('John', 'Doe', '1111111111')";
if (mysqli_query($conn, $sql)) {
echo "New record created successfully";
} else {
echo "Error: " . $sql . "<br>" . mysqli_error($conn);
}
mysqli_close($conn);
?>
NOTE:
The connection is not failing from what I can tell. Removing everything after the first if statement, and adding else { echo "success" } outputs success. Again though, I am new to PHP.
If someone knows that the answer has been given in another post PLEASE PLEASE comment here and ill close this out.
http://www.w3schools.com/php/php_mysql_insert.asp
You should follow the proper syntax:
$conn = mysqli_connect(<host Name>, <username>, <password>, <database name>);
Reference: http://php.net/manual/en/function.mysqli-connect.php#refsect1-function.mysqli-connect-examples
Add two more parameters- username and password here:
$username = "root"; // Default values
$password = ""; // Default values
$conn = mysqli_connect($servername, $username, $password, $dbname);
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I'm creating a form where users can enter information and it will enter into the database on the website:
<?php
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "myDB";
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$sql = "INSERT INTO MyGuests (firstname, lastname, email)
VALUES ('John', 'Doe', 'john#example.com')";
if ($conn->query($sql) === TRUE) {
echo "New record created successfully";
} else {
echo "Error: " . $sql . "<br>" . $conn->error;
}
$conn->close();
?>
Only problem. It will work for me great because I can manually enter the feilds of my database information
($servername = "localhost";
$username = "username";
$password = "password";
$dbname = "myDB";)
But I am planning on releasing this form out to the public and I want them to not have to edit every single .php file (theres going to be about five php files)
How can I have it so they can "set it up" the first time they install these forms on their site.
You can solve this by having all the database settings inside a separate file, e.g. dbsettings.php
<?php
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "myDB";
?>
In the file that you would normally do the database connection, instead of just connecting your database using:
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
You would include the database settings file first.
<?php
include 'dbsettings.php';
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$sql = "INSERT INTO MyGuests (firstname, lastname, email)
VALUES ('John', 'Doe', 'john#example.com')";
if ($conn->query($sql) === TRUE) {
echo "New record created successfully";
} else {
echo "Error: " . $sql . "<br>" . $conn->error;
}
$conn->close();
?>
This is how you do it in PHP. You will see similar setup used in Wordpress, and all other PHP frameworks like Laravel, FuelPHP, CodeIgniter etc (it might be a good idea to use these for bigger projects).
I have a website in PHP. I try to store the session variable $_SESSION['user_name'] to a mysql database when a logged in user visits a specific webpage on my site.
<?php
$servername = "localhost";
$username = "user1";
$password = "user1";
$dbname = "payment";
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$sql = 'INSERT INTO users
VALUES ('.$_SESSION['user_name'].')';
if ($conn->query($sql) === TRUE) {
echo "New record created successfully";
} else {
echo "Error: " . $sql . "<br>" . $conn->error;
}
$conn->close();
?>
Error message:
Notice: Undefined variable: _SESSION in /opt/lampp/htdocs/succes.php on line 16
Tried a bunch of things but can't figure it out. What is wrong here?
You need to call session_start() at the beginning of your script (before using any $_SESSION variables). Also, you need quotes around the variable in you query:
$sql = 'INSERT INTO users
VALUES ("'.$_SESSION['user_name'].'")';
Please note that this is not safe; you are wide open to SQL injection. Instead, you should use prepared statements:
<?php
$servername = "localhost";
$username = "user1";
$password = "user1";
$dbname = "payment";
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$sql = 'INSERT INTO users
VALUES (?)';
$stmt = $conn->prepare($sql);
$stmt->bind_param('s', $_SESSION['user_name']);
if ($stmt->execute()) {
echo "New record created successfully";
} else {
echo "Error: " . $sql . "<br>" . $conn->error;
}
$conn->close();
?>
Before you use any $_SESSION variables you need to call session_start().
Of topic a bit though, something to look into PDO. It can be a bit a tad slower than mysqli() however supports many more Database types. Here is a good article on Tuts+ explaining some of the differences as well as explaining essential security steps.
If I could be a bit biased I have created a PHP Class for PDO Connections which can be found on GitHub