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做优惠券,需要我创建优惠券时候系统自动生成指定发行的票数,然后自动生成唯一激活码不会重复,再新增到数据库中。我查了百度,很多都是以本机信息或者时间。不适合用,求大神方法!
小伙看你根骨奇佳,潜力无限,来学PHP伐。
# 佛主保佑也没用, 创建时查询缓存是否存在, 存在则重新生成 # runtime缓存 $cd_keys = array(); function generate_key(){ $key = 创建key(); if(isset($cd_keys[$key]){ return generate_key(); } return $key; } function thousand_keys(){ $keys = array(); for( $=1000; $i--; ){ $key = generate_key(); $cd_keys[$key] = 1; // 标记存在 $keys[] = $key; } return $keys; }
小伙看你根骨奇佳,潜力无限,来学PHP伐。