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二进制交叉权限微型php类详解

WBOY
WBOYOriginal
2016-06-13 09:43:461813browse

 这篇文章主要介绍了二进制交叉权限微型php类,需要的朋友可以参考下

靓点: 1、多对多交叉场景分配; 2、php新特性-闭包使用、批处理函数array_walk/array_flip使用; 3、位运算&使用案例;   使用场景: 1、常见增删改查(2的N次方值入库); 2、认证、第三方账号绑定、多分类选择;    代码如下: scene=$scene; $this->case_list=$this->case_list(true);   if ($allow_value) { $this->allow_value=$allow_value; $this->allow_list=$this->allow_list($allow_value,true); } }     //取得全部任务清单 function case_list($mode=false){ $case_list=config($this->scene,'allow'); return $mode ? $case_list : array_keys($case_list); }     //取得用户任务清单 function allow_list($allow_value=0,$mode=false){ $buffer=array(); foreach ($this->case_list as $key=>$value) { if ($allow_value & pow(2,$key-1)) { $buffer[$key]=$value; } } return $mode ? $buffer : array_keys($buffer); }     //计算允许值 function allow_value($allow_list=null){ if ($allow_list==null) $allow_list=$this->allow_list; array_walk($allow_list, function($value,$key) use(&$allow_list){ $allow_list[$key]=pow(2,$value-1); }); return array_sum($allow_list); }     //判断是否允许 function is_allow($case){ $case_list=array_flip($this->case_list); return (bool)($this->allow_value & pow(2,$case_list[$case]-1)); } } 代码如下: [access] 1=add 2=del 3=read 4=list 5=mod 6=detail 7=pub 8=collect 9=like 10=send     [cert] 1=email 2=tel 3=qq 4=identity_card 5=real_name 6=business_license     [bind] 1=qq 2=weibo 3=taobao 4=alipay 5=renren 6=weichat 7=baidu
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