计算年龄算法（周岁虚岁）

/*** $date是时间戳* $type为1的时候是虚岁,2的时候是周岁*/function getAgeByBirth($date,$type 1){$nowYear "Y",time());$nowMonth "m",time());$nowDay "d",time());$birthYear "Y",$date);$birthMonth "m",$date);$birthDay "d",$date);if1){$age 1);}else2}{if$birthMonth){$age 1;}elseif($nowMonth$birthMonth){if$birthDay){$age 1;}else{$age $birthYear;}}else{$age $birthYear;}}return $age;

}

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