note 101657 added to function.uniqid

This makes a COMB UUID, for the purpose of UUIDs as PRIMARY keys in databases. /* requires installation of ubuntu 'php5_uuid' module * see this URL: http://www.informit.com/articles/printerfriendly.aspx?p=25862 * else, use a search engine and look up "comb uuid", or "sequential uuid" * * returns a guid with the last 12 chars representing the HEX value of time * allow better clustering of database index pages and faster performance * while still using UUIDs * */ function make_comb_uuid(){ uuid_create(&$v4); uuid_make($v4, UUID_MAKE_V4); uuid_export($v4, UUID_FMT_STR, &$v4String); $var=gettimeofday(); return substr($v4String,0,24).substr(dechex($var['sec'].$var['usec']),0,12); ---- Server IP: 208.69.120.55 Probable Submitter: 75.25.120.243 ---- Manual Page -- http://www.php.net/manual/en/function.uniqid.php Edit -- https://master.php.net/note/edit/101657 Del: integrated -- https://master.php.net/note/delete/101657/integrated Del: useless -- https://master.php.net/note/delete/101657/useless Del: bad code -- https://master.php.net/note/delete/101657/bad+code Del: spam -- https://master.php.net/note/delete/101657/spam Del: non-english -- https://master.php.net/note/delete/101657/non-english Del: in docs -- https://master.php.net/note/delete/101657/in+docs Del: other reasons-- https://master.php.net/note/delete/101657 Reject -- https://master.php.net/note/reject/101657 Search -- https://master.php.net/manage/user-notes.php