In what ways can PHP code optimization improve the performance of a forum website?

PHP code optimization can improve the performance of a forum website by reducing the load on the server, improving page load times, and enhancing overall user experience. This can be achieved by minimizing database queries, using caching techniques, and optimizing loops and functions. 

// Example of optimizing a database query in PHP
// Before optimization
$query = "SELECT * FROM posts WHERE user_id = $user_id";
$result = mysqli_query($connection, $query);
while($row = mysqli_fetch_assoc($result)) {
    // Process each post
}

// After optimization
$query = "SELECT * FROM posts WHERE user_id = $user_id";
$result = mysqli_query($connection, $query);
$posts = [];
while($row = mysqli_fetch_assoc($result)) {
    $posts[] = $row;
}
// Process $posts array

Keywords

PHP code optimization performance forum website caching

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