How can PHP developers optimize their code for better performance when dealing with large datasets?

When dealing with large datasets, PHP developers can optimize their code for better performance by using techniques such as pagination to limit the amount of data fetched at once, utilizing caching mechanisms to store and retrieve data efficiently, and optimizing database queries by using indexes and avoiding unnecessary joins. 

// Example of implementing pagination to limit data fetched at once
$page = isset($_GET['page']) ? $_GET['page'] : 1;
$limit = 10;
$offset = ($page - 1) * $limit;

$query = "SELECT * FROM large_table LIMIT $limit OFFSET $offset";
$result = mysqli_query($connection, $query);

while($row = mysqli_fetch_assoc($result)) {
    // Process data
}

Keywords

PHP performance optimization large datasets memory management caching

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