随机生成密码，卡密 php

//生成密码 private function getCardPwd($num=0){$pwd = array(); for($i=0; $i<$num; $i++){ //生成基本随机数 $charid = substr(MD5(uniqid(mt_rand(), true)),8,16).$this->get_RandomString(4,'2'); $pwd[$i]=strtoupper($charid); } return $pwd; }

#创建随机字符串 private function get_RandomString($len=4,$flag='1'){$chars= null; if($flag=='1'){ $chars = array( "0", "1", "2","3", "4", "5", "6", "7", "8", "9" ); }else{ $chars = array( "a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z", "0", "1", "2", "3", "4", "5", "6", "7", "8", "9" ); }$charsLen = count($chars) - 1; shuffle($chars); // 将数组打乱$output = ""; for ($i=0; $i< $len; $i++){$output .= $chars[mt_rand(0, $charsLen)]; } return $output; }

//生成卡号 private function getCardId($prifix,$num=0,$length=8){//输出数组 $card = array(); //填补字符串 $pad = ''; //日期 $temp = time(); $Y = date('Y',$temp); $M = date('m',$temp); $D = date('d',$temp); $TD= date('YmdHis',$temp); //长度 $LY = strlen((string)$Y); $LM = strlen((string)$M); $LD = strlen((string)$D); $LTD = strlen((string)$TD); //流水号长度 $W = 5; //根据长度生成填补字串 if($length<=12){ $pad = $prifix.$this->get_RandomString($length - $W); }else if($length>12&&$length<=16){ $pad = $prifix.(string)$Y.$this->get_RandomString($length - ($LY+$W)); }else if($length>16&&$length<=20){ $pad = $prifix.(string)$Y.(string)$M.$this->get_RandomString($length - ($LY+$LM+$W)); }else{ $pad = $prifix.(string)$TD.$this->get_RandomString($length - ($LTD+$W)); }//生成X位流水号 for($i=0; $i<$num; $i++){ $STR=$pad.str_pad((string)($i+1),$W,'0',STR_PAD_LEFT); $card[$i] = $STR; }return $card; }

【随机生成密码，卡密】