The bzip2 functions are used to transparently read and write bzip2 (.bz2) compressed files.
Bzip2 support in PHP is not enabled by default. You will need to use the --with-bz2 configuration option when compiling PHP to enable bzip2 support. This module requires bzip2/libbzip2 version >= 1.0.x.
This extension does not define any configuration directives.
This extension defines one resource type: a file pointer identifying the bz2-file to work on.
This extension does not define any constants.
This example opens a temporary file and writes a test string to it, then prints out the contents of the file.
Example 1. Small bzip2 Example