How does PHP handle reading and writing bzip2-compressed files using the bzread and bzwrite functions?

PHP handles reading and writing bzip2-compressed files using the bzread and bzwrite functions. These functions allow PHP to read and write data from/to bzip2-compressed files in a straightforward manner. To read from a bzip2-compressed file, you can use the bzopen function to open the file and then use the bzread function to read data from it. Similarly, to write to a bzip2-compressed file, you can use the bzopen function to open the file in write mode and then use the bzwrite function to write data to it.

// Reading from a bzip2-compressed file
$filename = 'compressed_file.bz2';
$handle = bzopen($filename, 'r');
while ($line = bzread($handle, 4096)) {
    echo $line;
}
bzclose($handle);

// Writing to a bzip2-compressed file
$filename = 'compressed_file.bz2';
$handle = bzopen($filename, 'w');
bzwrite($handle, 'Hello, world!');
bzclose($handle);