What potential pitfalls should be considered when implementing a download limit in PHP?

When implementing a download limit in PHP, potential pitfalls to consider include ensuring that the limit is accurately enforced, handling concurrent downloads, preventing unauthorized access to the download files, and avoiding potential security vulnerabilities such as denial of service attacks or resource exhaustion. 

// Example code snippet for implementing a download limit in PHP

$downloadLimit = 5; // Set the download limit to 5 downloads

if ($_SESSION['downloads'] < $downloadLimit) {
    // Code to handle the download process
    $_SESSION['downloads']++; // Increment the download counter
} else {
    echo "Download limit exceeded. Please try again later.";
}

Keywords

file handling session management rate limiting error handling security vulnerabilities

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