apache-1.3.41_1 and php5-5.2.11 and php5-hash-5.2.11
*** There is an issue using mhash.so ***
On certain Apache installs, Apache refuses to start when mhash is activated thru the php extension setup (make config).
These functions are intended to work with » mhash. Mhash can be used to create checksums, message digests, message authentication codes, and more.
This is an interface to the mhash library. Mhash supports a wide variety of hash algorithms such as MD5, SHA1, GOST, and many others. For a complete list of supported hashes, refer to the constants page. The general rule is that you can access the hash algorithm from PHP with MHASH_hashname. For example, to access TIGER you use the PHP constant MHASH_TIGER.
This extension is obsoleted by Hash.