What are the potential pitfalls of using CURL to stream files to users for download?

One potential pitfall of using CURL to stream files to users for download is that it may consume a large amount of memory if the file being streamed is too large. To solve this issue, you can stream the file in chunks rather than loading the entire file into memory at once. 

// Function to stream file in chunks
function streamFile($file_path) {
    $file = fopen($file_path, 'rb');
    while (!feof($file)) {
        echo fread($file, 1024);
        ob_flush();
        flush();
    }
    fclose($file);
}

// Usage example
$file_path = 'path/to/file.txt';
header('Content-Type: application/octet-stream');
header('Content-Disposition: attachment; filename="' . basename($file_path) . '"');
streamFile($file_path);

Keywords

CURL streaming files download potential pitfalls

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