zlib:// bzip2:// zip:// Compression Streams &reftitle.description; compress.zlib:// and compress.bzip2:// zlib: works like gzopen, except that the stream can be used with fread and the other filesystem functions. This is deprecated due to ambiguities with filenames containing ':' characters; use compress.zlib:// instead. compress.zlib:// and compress.bzip2:// are equivalent to gzopen and bzopen respectively, and operate even on systems that do not support fopencookie. ZIP extension registers zip: wrapper. As of PHP 7.2.0 and libzip 1.2.0+, support for the passwords for encrypted archives were added, allowing passwords to be supplied by stream contexts. Passwords can be set using the 'password' stream context option. &reftitle.usage; compress.zlib://file.gz compress.bzip2://file.bz2 zip://archive.zip#dir/file.txt &reftitle.options; Attribute Supported Restricted by allow_url_fopen No Allows Reading Yes Allows Writing Yes (except zip://) Allows Appending Yes (except zip://) Allows Simultaneous Reading and Writing No Supports stat No, use the normal file:// wrapper to stat compressed files. Supports unlink No, use the normal file:// wrapper to unlink compressed files. Supports rename No Supports mkdir No Supports rmdir No &reftitle.seealso;