<?php
    $file = "/path/example.bz2";
    $str = "A test string<br />";
    $bz = bzopen($file, "w"); // open file for writing
    // write
    bzwrite($bz, $str);
    bzclose($bz); // close file
    // read
    $bz = bzread($file, "r"); // open file for reading
    echo bzread($bz); // output file (or next 1024 characters)
    bzclose($bz);
?>