short uuid

/** * Generates an UUID * * @author Anis uddin Ahmad * @param string a optional prefix * @return string The formatted UUID /function uuid ($prefix = ') { $chars = MD5 ( Uniqid (Mt_rand (), true); $uuid = substr

  /** * Generates an UUID * * @author Anis uddin Ahmad * @param string an optional prefix * @return string the formatted uuid */ function uuid($prefix = '') { $chars = md5(uniqid(mt_rand(), true)); $uuid =

By definition, the UUID (Universally unique IDentifier, also known as the GUID) is unique in both time and space. To ensure the uniqueness of the space, each UUID uses a 48-bit value to record, typically the computer's network card address. To

From the Bluetooth core specification document "Core_v4.0.pdf" 2.5.1 UUID The A UUID is a universally unique identifier, which is guaranteed to being unique across all space and all time.  uui Ds can is independently  created in a

I looked for a long time on the internet, some people say UUID is better, is in the sub-database table, merge data what is easier, also some people say self-increase, to the table of data more time, performance than the UUID is much better, in the

The only database that I am still familiar with is mysql. Probably mysql users, more than 9% will use autoincrement ID as the primary key. This is understandable, because the auto-increment ID of MySQL is very efficient and convenient to use. So

Reference: stackoverflow. comquestions412341how-should-i-store-guid-in-mysql-tables usually uses UUID as a unique identifier and needs to be stored in the database. UUID format: StringstringUUID. randomUUID (). toString (); System. out. println

Mysql stores UUID to remove the horizontal line, and mysqluuid removes the horizontal line Refer: Http://stackoverflow.com/questions/412341/how-should-i-store-guid-in-mysql-tables UUID is usually used as a unique identifier and needs to be stored in

UUID Reference Implementation /* ** Copyright (c) 1990-1993,199 6 Open Software Foundation, Inc. ** Copyright (c) 1989 by Hewlett-Packard Company, Palo Alto, Ca .& ** Digital Equipment Corporation, Maynard, Mass. ** To anyone who acknowledges that

Small program development function introduction: encryption and decryption NODE-UUID, Node-uuid can quickly generate UUID that complies with RFC4122 Specification version 1 or version 4. The js-base64 can realize Base64 encoding and