本篇文章给大家分享的内容是php生成五位数邀请码,有着一定的参考价值,有需要的朋友可以参考一下
model
/** * 生成邀请码 * @param $uid * @return string */ public function initcode() { $code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'; $rand = $code[rand(0,25)] .strtoupper(dechex(date('m'))) .date('d').substr(time(),-5) .substr(microtime(),2,5) .sprintf('%02d',rand(0,99)); for( $a = md5( $rand, true ), $s = '0123456789ABCDEFGHIJKLMNOPQRSTUV', $d = '', $f = 0; $f < 5; $g = ord( $a[ $f ] ), $d .= $s[ ( $g ^ ord( $a[ $f + 8 ] ) ) - $g & 0x1F ], $f++ ); return $d; } /** * 是否重复 */ public function recode($code) { if ($this->where('code='.$code)->find()) { return false; } return true; }
action
/** * 我的邀请码 * @author zhangfeng */ public function mycode() { $model = M('Usercode'); $uid = ($_GET['uid']); $code = $model->is_code($uid); $this->assign('code', $code); if (!$code) { $code = $this->getcode($model, $uid); $res = $model->savecode($uid, $code); if ($res) { $this->assign('code', $code); } else { $this->assign('code', '邀请码生成失败!,错误:'.$model->getError()); } } $this->display(); } /** * 递归函数获取绝对不重复邀请码 * @author zhangfeng * @param $model * @param $uid * @return mixed */ private function getcode($model, $uid) { $code = $model->initcode($uid); if ($model->recode($code)) { return $code; } else { while(true) { $this->getcode($model, $uid); } } }
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