What are potential pitfalls when using PHP to display blob files?

When displaying blob files in PHP, potential pitfalls include memory consumption issues when handling large files, security vulnerabilities if not properly sanitizing user input, and potential performance issues if not using efficient code to fetch and display the blob data. 

<?php
// Example code snippet to display blob files in PHP with error handling

// Fetch blob data from database
$blobData = fetchBlobDataFromDatabase($fileId);

// Check if blob data is not empty
if ($blobData) {
    // Output the blob data
    header("Content-type: image/jpeg"); // Adjust content type based on file type
    echo $blobData;
} else {
    echo "Error fetching blob data";
}

// Function to fetch blob data from database
function fetchBlobDataFromDatabase($fileId) {
    // Implement your database connection and query logic here
}
?>

Keywords

PHP blob files display security memory_limit

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