PHP验证生日
php代码
<?php function pc_checkbirthdate($month, $day, $year) { $min_age = 18; // 过18岁 $max_age = 100; // 超过122岁 // 验证是不是合法时间,不会出现2月30号类似错误 if (! checkdate ( $month, $day, $year )) { return false; } // 取得当前 年 月 日 list ( $this_year, $this_month, $this_day ) = explode ( ',', date ( 'Y, m, d' ) ); $min_year = $this_year - $max_age; $max_year = $this_year - $min_age; print "合法时间应该大于:$min_year,$this_month,$this_day\n<br/>"; print "合法时间应该小于:$max_year,$this_month,$this_day\n<br/>"; print "您输入的时间是:$year,$month,$day\n<br/>"; if (($year > $min_year) && ($year < $max_year)) { // 先判断年,如果在(最小年,最大年)之间,返回true return true; } elseif (($year == $max_year) && (($month < $this_month) || (($month == $this_month && ($day < $this_day))))) {//年相等的在判断月,月相等在判断日 return true; } elseif (($year == $min_year) && (($month > $this_month) || (($month == $this_month && ($day > $this_day))))) { return true; } else { return false; } } if (pc_checkbirthdate ( 4, 29, 1995 )) { print "You may use this web site."; } else { print "please input the correct birthdate."; exit (); } ?>
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