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What are the best practices for optimizing PHP scripts to prevent timeout errors when handling a large amount of data?

When handling a large amount of data in PHP scripts, it is crucial to optimize the code to prevent timeout errors. One way to do this is by breaking down the processing into smaller chunks and using techniques like pagination or batch processing. Additionally, you can optimize your database queries, use caching mechanisms, and consider using asynchronous processing if applicable.

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// Example code snippet for optimizing PHP scripts to prevent timeout errors when handling a large amount of data

// Set maximum execution time to prevent timeout
set_time_limit(0);

// Implement pagination to process data in smaller chunks
$page = isset($_GET['page']) ? $_GET['page'] : 1;
$limit = 100;
$offset = ($page - 1) * $limit;

// Query database with limit and offset
$query = "SELECT * FROM large_table LIMIT $limit OFFSET $offset";
$result = mysqli_query($connection, $query);

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

// Continue pagination until all data is processed
if (mysqli_num_rows($result) == $limit) {
    $next_page = $page + 1;
    echo "<a href='process_large_data.php?page=$next_page'>Next Page</a>";
}

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