note 84394 added to function.uniqid

Hi all, I'm not sure what performance problems you guys are talking about, but I benchmarked 10000 of each of the functions outlined in this comments section alongside the uniqid method. Where function names are duplicated (because everyone likes to call their method uuid), i've added part of that contributer's name to the function name. So if you want something unique and you think that uniqid() is slowing your scripts down, maybe rand() is your only answer :) See the output (quickest to slowest): Array ( [0] => Array ( [strMethod] => rand [intRepetitions] => 10000 [flTotalTime] => 0.104878902435 [flAverageTime] => 1.04878902435E-5 [flShortestTime] => 3.81469726562E-6 [flLongestTime] => 0.000297069549561 [exampleOutput] => 19689 ) [1] => Array ( [strMethod] => uniqid [intRepetitions] => 10000 [flTotalTime] => 0.123727083206 [flAverageTime] => 1.23727083206E-5 [flShortestTime] => 3.81469726562E-6 [flLongestTime] => 9.3936920166E-5 [exampleOutput] => 48782b3c3e997 ) [2] => Array ( [strMethod] => uniqid2 [intRepetitions] => 10000 [flTotalTime] => 0.132393836975 [flAverageTime] => 1.32393836975E-5 [flShortestTime] => 3.81469726562E-6 [flLongestTime] => 0.000135898590088 [exampleOutput] => 48782b3d282c ) [3] => Array ( [strMethod] => uuid_mimec [intRepetitions] => 10000 [flTotalTime] => 0.192065000534 [flAverageTime] => 1.92065000534E-5 [flShortestTime] => 3.81469726562E-6 [flLongestTime] => 0.000221014022827 [exampleOutput] => fc1b24b7-59e0-4935-88f2-06a6fde922d8 ) [4] => Array ( [strMethod] => uuid_maciej [intRepetitions] => 10000 [flTotalTime] => 0.219671964645 [flAverageTime] => 2.19671964645E-5 [flShortestTime] => 3.81469726562E-6 [flLongestTime] => 0.000162839889526 [exampleOutput] => 4c55bc99-b5bc-0f88-0387-00001a51bd33 ) [5] => Array ( [strMethod] => uuid_dholmes [intRepetitions] => 10000 [flTotalTime] => 0.221670866013 [flAverageTime] => 2.21670866013E-5 [flShortestTime] => 3.81469726562E-6 [flLongestTime] => 0.000198125839233 [exampleOutput] => cd79ac78-af08-a804-6567-3c4940e3252b ) [6] => Array ( [strMethod] => newid [intRepetitions] => 10000 [flTotalTime] => 0.221807956696 [flAverageTime] => 2.21807956696E-5 [flShortestTime] => 3.81469726562E-6 [flLongestTime] => 0.000211954116821 [exampleOutput] => user_9e2e305b4c4340397617baf285f11eb348782b3d0354b3. 095706961215834941127.0.0.1 ) [7] => Array ( [strMethod] => uuid_nodkz [intRepetitions] => 10000 [flTotalTime] => 0.477306842804 [flAverageTime] => 4.77306842804E-5 [flShortestTime] => 3.81469726562E-6 [flLongestTime] => 0.000205039978027 [exampleOutput] => 0001-7f000001-48782b3e-0952-ef8e7ec8 ) [8] => Array ( [strMethod] => uuid_lance [intRepetitions] => 10000 [flTotalTime] => 0.668512821198 [flAverageTime] => 6.68512821198E-5 [flShortestTime] => 3.81469726562E-6 [flLongestTime] => 0.00036096572876 [exampleOutput] => fa465717-26bf-4af9-987f-33bb54905678 ) ) ---- Server IP: 117.104.160.194 Probable Submitter: 58.160.105.78 ---- Manual Page -- http://www.php.net/manual/en/function.uniqid.php Edit -- https://master.php.net/note/edit/84394 Del: integrated -- https://master.php.net/note/delete/84394/integrated Del: useless -- https://master.php.net/note/delete/84394/useless Del: bad code -- https://master.php.net/note/delete/84394/bad+code Del: spam -- https://master.php.net/note/delete/84394/spam Del: non-english -- https://master.php.net/note/delete/84394/non-english Del: in docs -- https://master.php.net/note/delete/84394/in+docs Del: other reasons-- https://master.php.net/note/delete/84394 Reject -- https://master.php.net/note/reject/84394 Search -- https://master.php.net/manage/user-notes.php