What are best practices for handling database connections and queries in PHP to avoid errors like the one mentioned in the forum thread?

The issue mentioned in the forum thread is likely related to improper handling of database connections and queries in PHP, leading to errors like "MySQL server has gone away". To avoid such errors, it is important to properly establish and maintain database connections, handle exceptions, and close connections after use. 

<?php

// Establishing a database connection
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "database";

$conn = new mysqli($servername, $username, $password, $dbname);

// Check connection
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
}

// Perform database queries
$sql = "SELECT * FROM table";
$result = $conn->query($sql);

if ($result->num_rows > 0) {
    // Output data
    while($row = $result->fetch_assoc()) {
        echo "Column1: " . $row["column1"]. " - Column2: " . $row["column2"]. "<br>";
    }
} else {
    echo "0 results";
}

// Close connection
$conn->close();

?>

Keywords

PDO MySQLi prepared statements error handling SQL injection

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