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<?php // EXAMPLE USAGE $array = generate(); echo $array[0]; echo "<br />"; echo $array[1]; // FUNCTION function generate() { $digilist = "0123456789ABCDEFGHJKLMNPQRTUVWXY"; //now we generate a new random ID number using the substrings of the digitList string above $id = NULL; $id .= substr($digilist, rand(9, 9), 1); //random number $id .= substr($digilist, rand(21, 21), 1); //then a letter $id .= substr($digilist, rand(13, 13), 1); //another letter $id .= substr($digilist, rand(2, 9), 1); //a number $id .= substr($digilist, rand(9, 9), 1); //and finally another number - simple :D //ok so now we need to generate an MD5 hash of our ID $hash = md5($id); //cycle through the hash 16 (length of key) times (in steps of 2 because each hex bytes is 2 digits long) $i = 0; $key = NULL; for ($i; $i < 32; $i+=2) { //here we convert the next hex value to an integer and perform a bitwise AND operation against '31' //31 is the highest substring value in our digit list. $nextdigit = hexdec(substr($hash, $i, 2)) & 31; //if 'i' is divisable by 8 (every 4 cycles) then we want to add "-" if ((($i % 8) == 0) && ($i > 0)) { $key .= "-".substr($digilist, $nextdigit, 1); } else { $key .= substr($digilist, $nextdigit, 1); } } $array = array($id, $key); //return return $array; } ?>
Output for 7.0.13, 7.1.4, 7.1.25, 7.2.4, 7.2.6, 7.3.1
9MD69<br />2CU3-JQ54-EJAY-F2HN
Output for 7.0.5, 7.0.7, 7.3.0
9MD79<br />MRPJ-1V00-YQWF-9AX4
Output for 7.0.11, 7.1.7, 7.2.0 - 7.2.1, 7.2.8, 7.2.13
9MD49<br />VPDF-9FEY-B2UP-5VHQ
Output for 7.0.0, 7.0.2, 7.0.10, 7.0.14, 7.2.5, 7.2.9, 7.2.11 - 7.2.12
9MD89<br />DYFP-P90V-JFKG-9B8E
Output for 7.0.18, 7.0.20, 7.1.6, 7.2.3, 7.2.10
9MD99<br />3A23-HLL8-F5AF-W3J0
Output for 7.0.4, 7.0.6, 7.0.8, 7.0.16, 7.2.7
9MD29<br />DK5M-J02E-FMMH-1BYA
Output for 7.0.3, 7.0.9, 7.0.17, 7.1.0, 7.1.2 - 7.1.3, 7.1.5, 7.2.2
9MD59<br />X61M-8P2Q-JBNT-Q5P4
Output for 7.0.1, 7.0.12, 7.0.15, 7.0.19, 7.1.1
9MD39<br />FE6G-F2GU-9JLN-BGEH
preferences:
60.52 ms | 402 KiB | 51 Q