mysql database with php
1.Create database with php
Before we can access data in the MySQL database, we need to be able to connect to the server:
<?php
$servername = "localhost";
$username = "root";
$password = "";
// Create connection
$conn = new mysqli($servername, $username, $password);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
echo "connection succesfully";
$conn->close();
?>
2.Create a database:
$servername = "localhost";
$username = "root";
$password = "";
// Create connection
$conn = new mysqli($servername,$username,$password);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$sql = "Create DATABASE demo";
if ($conn->query($sql) === TRUE) {
echo "database has been cerated";
} else {
echo "database has been not craeted".$conn->connect_error;
}
$conn->close();
?>
3. Create table with php:
<?php
$servername = "localhost";
$username = "root";
$password = "";
$dbname = "demo";
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
// sql to create table
$sql = "CREATE TABLE aman (
id INT(6) UNSIGNED AUTO_INCREMENT PRIMARY KEY,
firstname VARCHAR(30) NOT NULL,
lastname VARCHAR(30) NOT NULL,
email VARCHAR(50),
reg_date TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP
)";
if ($conn->query($sql) === TRUE) {
echo "Table aman created successfully";
} else {
echo "Error creating table: " . $conn->error;
}
$conn->close();
?>
4. Insert single line data with php:
<?php
$servername = "localhost";
$username = "root";
$password = "p";
$dbname = "demo";
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$sql = "INSERT INTO aman (firstname, lastname, email)
VALUES ('Aman', 'Gupta', 'gaman5088@gmail.com')";
if ($conn->query($sql) === TRUE) {
echo "New record created successfully";
} else {
echo "Error: " . $sql . "<br>" . $conn->error;
}
$conn->close();
?>
insert multiple data in database with php:
<?php
$servername = "localhost";
$username = "root";
$password = "";
$dbname = "demo";
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$sql = "INSERT INTO aman (firstname, lastname, email)
VALUES ('varun', 'meena', 'varun@example.com');";
$sql .= "INSERT INTO aman (firstname, lastname, email)
VALUES ('vandita', 'rajput', 'vandita@example.com');";
$sql .= "INSERT INTO aman (firstname, lastname, email)
VALUES ('shubham', 'podder', 'shubham@example.com')";
if ($conn->multi_query($sql) === TRUE) {
echo "New records created successfully";
} else {
echo "Error: " . $sql . "<br>" . $conn->error;
}
$conn->close();
?>
output:-
6.PHP MySQL Select Data:
<?php
$servername = "localhost";
$username = "root";
$password = "";
$dbname = "demo";
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$sql = "SELECT id, firstname, lastname FROM aman";
$result = $conn->query($sql);
if ($result->num_rows > 0) {
// output data of each row
while($row = $result->fetch_assoc()) {
echo "id: " . $row["id"]. " - Name: " . $row["firstname"]. " " . $row["lastname"]. "<br>";
}
} else {
echo "0 results";
}
$conn->close();
?>
output:-
7. Insert data in database from html form:
<!DOCTYPE html>
<html>
<head>
<title>form </title>
</head>
<body>
<form action="" method="POST">
fName:
<input type="text" name="name">
<br><br>
lname <input type="text" name="lname"><br><br>
Email:<input type="Email" name="Email"><br><br>
<input type="submit" name="submit">
</form>
<?php
$ser="localhost";
$user="root";
$pass ="";
$dbname="demo";
$cn = new mysqli($ser,$user,$pass,$dbname);
if ($cn->connect_error) {
die("connection failed".$connect_error);
}
$sql = "INSERT INTO aman ( firstname,lastname,email) VALUES ('".$_POST["name"]."','".$_POST["lname"]."','".$_POST["Email"]."')";
if ($cn->query($sql)=== TRUE) {
echo"<script> alert('new record enter successfylly');</script>";
# code...
}else
{
echo "<script>alert('error:".$sql."<br>".$cn->error."');</script>";
}
$cn->close();
?>
</body>
</html>
output:
Wow😮😮😮 it's too good👍👍👍
ردحذفthanku yr
حذف