廢話不多說,之間上程式碼:
<?php /** * 根據出生年月日計算出年齡 * @param $birth_year * @param $birth_month * @param $birth_day * @return int */ function getAgeByBirth($birth_year,$birth_month,$birth_day){ if(empty($birth_year) || empty($birth_month) || empty($birth_day)){ return 0; } $current_year = date('Y',time()); $current_month = date('m',time()); $current_day = date('d',time()); if($birth_year >= $current_year){ return 0; } $age = $current_year - $birth_year - 1; if($current_month>$birth_month){ return $age+1; }else if($current_month == $birth_month && $current_day>=$birth_day){ return $age+1; }else{ return $age; } } //測試: echo getAgeByBirth('1988','4','8'); ?>
執行結果:
32!
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