这段代码,哪位大神,帮我解读下。谢谢
$age = empty($_POST['age'])?1:trim($_POST['age']);
<code>$taste = empty($_POST['taste'])?1:trim($_POST['taste']); $drink = empty($_POST['drink'])?0:trim($_POST['drink']); $drink_quantity = empty($_POST['drink_quantity'])?0:trim($_POST['drink_quantity']); $potation = empty($_POST['potation'])?0:trim($_POST['potation']); $coffee = empty($_POST['coffee'])?0:trim($_POST['coffee']); $smoke = empty($_POST['smoke'])?0:trim($_POST['smoke']); $medicine_type = empty($_POST['medicine_type'])?0:trim($_POST['medicine_type']); $movement = empty($_POST['movement'])?0:trim($_POST['movement']); $movement_name = empty($_POST['movement_name'])?'':trim($_POST['movement_name']); $work = empty($_POST['work'])?0:trim($_POST['work']); $pressure = empty($_POST['pressure'])?0:trim($_POST['pressure']); $tired = empty($_POST['tired'])?0:trim($_POST['tired']); $cold = empty($_POST['cold'])?0:trim($_POST['cold']); $hands = empty($_POST['hands'])?0:trim($_POST['hands']); $pregnant = empty($_POST['pregnant'])?0:trim($_POST['pregnant']); $lactation = empty($_POST['lactation'])?0:trim($_POST['lactation']); $edema = empty($_POST['edema'])?0:trim($_POST['edema']); $edema_po = empty($_POST['edema_po']) ? 0 : trim($_POST['edema_po']); $discomfort = empty($_POST['discomfort']) ? 0 : trim($_POST['discomfort']); $makeup_name = empty($_POST['makeup_name']) ? '' : trim($_POST['makeup_name']); $shaping_name = empty($_POST['shaping_name']) ? 0 : trim($_POST['shaping_name']); $shaping = empty($_POST['shaping']) ? 0 : trim($_POST['shaping']); $skin = empty($_POST['skin']) ? 0 : trim($_POST['skin']); $skin_pro = empty($_POST['skin_pro']) ? array() : $_POST['skin_pro']; $skin_pro = implode(',',$skin_pro); $body_pro = empty($_POST['body_pro']) ? array() : $_POST['body_pro']; $body_pro = implode(',', $body_pro); $course = empty($_POST['course']) ? 0 : trim($_POST['course']); $nursing_period = empty($_POST['nursing_period']) ? 0 : trim($_POST['nursing_period']); $nursing_inter = empty($_POST['nursing_inter']) ? 0 : trim($_POST['nursing_inter']); $treatment_cost = empty($_POST['treatment_cost']) ? 0 : trim($_POST['treatment_cost']); $homep_roducts = empty($_POST['homep_roducts']) ? 0 : trim($_POST['homep_roducts']);</code>
回复内容:
$age = empty($_POST['age'])?1:trim($_POST['age']);
<code>$taste = empty($_POST['taste'])?1:trim($_POST['taste']); $drink = empty($_POST['drink'])?0:trim($_POST['drink']); $drink_quantity = empty($_POST['drink_quantity'])?0:trim($_POST['drink_quantity']); $potation = empty($_POST['potation'])?0:trim($_POST['potation']); $coffee = empty($_POST['coffee'])?0:trim($_POST['coffee']); $smoke = empty($_POST['smoke'])?0:trim($_POST['smoke']); $medicine_type = empty($_POST['medicine_type'])?0:trim($_POST['medicine_type']); $movement = empty($_POST['movement'])?0:trim($_POST['movement']); $movement_name = empty($_POST['movement_name'])?'':trim($_POST['movement_name']); $work = empty($_POST['work'])?0:trim($_POST['work']); $pressure = empty($_POST['pressure'])?0:trim($_POST['pressure']); $tired = empty($_POST['tired'])?0:trim($_POST['tired']); $cold = empty($_POST['cold'])?0:trim($_POST['cold']); $hands = empty($_POST['hands'])?0:trim($_POST['hands']); $pregnant = empty($_POST['pregnant'])?0:trim($_POST['pregnant']); $lactation = empty($_POST['lactation'])?0:trim($_POST['lactation']); $edema = empty($_POST['edema'])?0:trim($_POST['edema']); $edema_po = empty($_POST['edema_po']) ? 0 : trim($_POST['edema_po']); $discomfort = empty($_POST['discomfort']) ? 0 : trim($_POST['discomfort']); $makeup_name = empty($_POST['makeup_name']) ? '' : trim($_POST['makeup_name']); $shaping_name = empty($_POST['shaping_name']) ? 0 : trim($_POST['shaping_name']); $shaping = empty($_POST['shaping']) ? 0 : trim($_POST['shaping']); $skin = empty($_POST['skin']) ? 0 : trim($_POST['skin']); $skin_pro = empty($_POST['skin_pro']) ? array() : $_POST['skin_pro']; $skin_pro = implode(',',$skin_pro); $body_pro = empty($_POST['body_pro']) ? array() : $_POST['body_pro']; $body_pro = implode(',', $body_pro); $course = empty($_POST['course']) ? 0 : trim($_POST['course']); $nursing_period = empty($_POST['nursing_period']) ? 0 : trim($_POST['nursing_period']); $nursing_inter = empty($_POST['nursing_inter']) ? 0 : trim($_POST['nursing_inter']); $treatment_cost = empty($_POST['treatment_cost']) ? 0 : trim($_POST['treatment_cost']); $homep_roducts = empty($_POST['homep_roducts']) ? 0 : trim($_POST['homep_roducts']);</code>
这是一段有问题的代码...
把empty()换成isset()...
否则会有notice...
运用三元运算符也就是语句中的 ? : ;
,用empty判断是否为空
一堆变量判空,非空去空格
? : 这个操作符你去了解一下
这段代码就是从post的表单数据中获取数据
主要做了空值校验 第一行代码的意思是如果_POST数组里的taste为空 $taste变量赋1 否则为表单数据
其他代码差不多这个意思 还有就是implode是把传递过来的字符串按,分割 切割成数组
类似xx?A:B的格式叫做三目运算符
$v=empty(xxxx)?A:B
$v是一个变量
= 号是赋值符
empty(xxxx)? 相当于一个判断。empty是判断是否为空的函数
如果xxxx为空则$V的值赋值为A
如果xxxx不为空则$V的值赋值为B
反对高票答案, 原因如下:

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