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) { } else { echo "Error: " . $sql . "" . $conn->error; } echo "New record created successfully"; $conn->close(); ?>

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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1-Fully explain the following code
<?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();
?>
Transcribed Image Text:1-Fully explain the following code <?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(); ?>
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