This article mainly introduces PHP to get a specified number of random string methods, involving PHP for array traversal and string operations related operation skills, the need for friends can refer to the following
This example describes how PHP obtains a specified number of random strings. Share to everyone for your reference, as follows:
function Getarandletter ($number = 1) {if ($number = = 0) return FALSE;//Remove 0 $number = $number < 0?-$number: $n umber; If less than 0 takes a positive value $LETTERARR = Array (' A ', ' B ', ' C ', ' D ', ' E ', ' F ', ' G ', ' H ', ' I ', ' J ', ' K ', ' L ', ' M ', ' N ', ' O ', ' P ', ' Q ', ' R ', ' S ', ' T ', ' U ', ' V ', ' W ', ' X ', ' Y ', ' Z ', ' A ', ' B ', ' C ', ' d ', ' e ', ' f ', ' g ', ' h ', ' I ', ' j ', ' K ', ' l ', ' m ', ' n ', ' o ', ' P ', ' Q ' , ' R ', ' s ', ' t ', ' u ', ' V ', ' w ', ' x ', ' y ', ' z '); $RETURNSTR = "; for ($i = 0; $i < $number; $i + +) { $returnStr. = $letterArr [rand (0, Wuyi)];} return $returnStr;} Echo Getarandletter (8);