Is there a more efficient way to write data to the beginning of a .csv file in PHP?

When writing data to the beginning of a .csv file in PHP, the typical approach involves reading the existing file, appending the new data at the beginning, and then writing the entire content back to the file. However, this can be inefficient for large files as it involves reading and writing the entire content. One more efficient way to write data to the beginning of a .csv file in PHP is to use the `file_put_contents()` function with the `FILE_APPEND` flag set to `FILE_APPEND` and `LOCK_EX` flag set to `LOCK_EX`. This allows you to directly prepend data to the file without having to read the entire content.

$data = "New data to be added\n";

$filename = 'data.csv';

// Read the existing content of the file
$existingData = file_get_contents($filename);

// Prepend the new data to the existing content
$newContent = $data . $existingData;

// Write the new content back to the file
file_put_contents($filename, $newContent, LOCK_EX | FILE_APPEND);