php xz bz gz

PHP does not have built-in support for the XZ, BZ, or GZ compression formats. However, you can use external libraries or command-line tools to handle these formats in PHP.

For XZ compression, you can use the "xz" command-line tool with the exec() function in PHP to compress or decompress files. Here's an example:

// Compress a file using XZ
exec('xz -z file.txt');

// Decompress a file using XZ
exec('xz -d file.txt.xz');

For BZ2 compression, you can use the "bzip2" command-line tool in a similar way:

// Compress a file using BZ2
exec('bzip2 file.txt');

// Decompress a file using BZ2
exec('bunzip2 file.txt.bz2');

For GZ compression, you can use the "gzip" command-line tool:

// Compress a file using GZ
exec('gzip file.txt');

// Decompress a file using GZ
exec('gunzip file.txt.gz');

Make sure you have these command-line tools installed on your system and that the PHP script has the necessary permissions to execute them.