Avoid using unpack() for NUL-padded string
Avoid using unpack() for NUL-padded string

PHP broke backward compatibility in 5.5.0; thank you so much!

ksmaheshkumar/httpfs,cyrus-and/httpfs,ksmaheshkumar/httpfs,ksmaheshkumar/httpfs,cyrus-and/httpfs,cyrus-and/httpfs