What resources or documentation should be consulted to better understand arrays, loops, and MySQL interactions in PHP?
To better understand arrays, loops, and MySQL interactions in PHP, one should consult the official PHP documentation, particularly the sections on arrays, loops, and MySQL functions. Additionally, online tutorials, forums, and books dedicated to PHP programming can provide valuable insights and examples on how to effectively work with arrays, loops, and MySQL in PHP.
// Example code snippet demonstrating the use of arrays, loops, and MySQL interactions in PHP
// Connect to MySQL database
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "myDB";
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
// Query MySQL database
$sql = "SELECT id, name, email FROM users";
$result = $conn->query($sql);
// Loop through results and store in an array
$users = array();
if ($result->num_rows > 0) {
while($row = $result->fetch_assoc()) {
$users[] = $row;
}
} else {
echo "0 results";
}
// Display user data
foreach ($users as $user) {
echo "ID: " . $user['id'] . " - Name: " . $user['name'] . " - Email: " . $user['email'] . "<br>";
}
// Close MySQL connection
$conn->close();