md5 Calculate the md5 hash of a string &warn.passwordhashing; &reftitle.description; stringmd5 stringstr boolraw_outputfalse Calculates the MD5 hash of str using the RSA Data Security, Inc. MD5 Message-Digest Algorithm, and returns that hash. &reftitle.parameters; str The string. raw_output If the optional raw_output is set to &true;, then the md5 digest is instead returned in raw binary format with a length of 16. &reftitle.returnvalues; Returns the hash as a 32-character hexadecimal number. &reftitle.examples; ]]> &reftitle.seealso; md5_file sha1_file crc32 sha1 hash crypt password_hash