這段代碼，哪位大神，幫我解讀下。謝謝

$age = empty($_POST['age'])?1:trim($_POST['age']);

$taste = empty($_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']);

回複內容：

$age = empty($_POST['age'])?1:trim($_POST['age']);

$taste = empty($_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']);

這是一段有問題的代碼．．．
把empty()換成isset()...
否則會有notice...

運用三元運算子也就是語句中的 ? : ;，用empty判斷是否為空白

一堆變數判空，非空去空格

? : 這個操作符你去瞭解一下

這段代碼就是從post的表單資料中擷取資料
主要做了空值校正 第一行代碼的意思是如果_POST數組裡的taste為空白 $taste變數賦1 否則為表單資料
其他代碼差不多這個意思 還有就是implode是把傳遞過來的字串按,分割 切割成數組

類似xx?A:B的格式叫做三目運算子

$v=empty(xxxx)?A:B

$v是一個變數
= 號是賦值符
empty(xxxx)? 相當於一個判斷。empty是判斷是否為空白的函數
如果xxxx為空白則$V的值賦值為A
如果xxxx不為空白則$V的值賦值為B

反對高票答案, 原因如下:

