better fread function manual for non-english speaking people

[phpmoli]

Hello, On this page: https://www.php.net/manual/en/function.fread.php this section:

if the stream is read buffered and it does not represent a plain file, at most one read of up to a number of bytes equal to the chunk size (usually 8192) is made; depending on the previously buffered data, the size of the returned data may be larger than the chunk size.

is incomprehensible for someone, who is not speaking english on a natural level.

Can you please rephrase this using simple english (like wikipedia does, example: https://simple.wikipedia.org/wiki/Cat ), without using complex language structures, like "at most one read of up"?

Thank you!