What are the potential pitfalls of using fseek() for moving the file pointer in PHP?

Using fseek() in PHP to move the file pointer can be problematic because it relies on absolute positioning, which may not always be accurate due to different line ending conventions on different operating systems. To avoid this issue, it is recommended to use the ftell() function to get the current position of the file pointer and then use fseek() with a relative offset instead.

$file = fopen("example.txt", "r");

// Get current position of file pointer
$currentPosition = ftell($file);

// Move file pointer 10 bytes forward from current position
fseek($file, $currentPosition + 10);

fclose($file);