This method compresses the file inside the Phar archive using gzip compression.
The zlib extension must be enabled to take
advantage of this feature. In addition, if the file is already compressed using
bzip2 compression, the bzip2 extension must be enabled in order
to decompress the file. As with all functionality that modifies the contents of
a phar, the phar.readonly INI variable
must be off in order to succeed.
Errors/Exceptions
Throws BadMethodCallException if
the phar.readonly
INI variable is on, or if the zlib
extension is not available.
Examples
Example #1 A PharFileInfo::setCompressedGZ() example