Which of the following code can help me interpret it. Thank you.

$ Ageempty ($ _ POST [& #039; age & #039;])? 1: trim ($ _ POST [& #039; age & #039;]); {code ...} $ 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']);

Reply content:

$ 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']);

This is a problematic code...
Replace empty () with isset ()...
Otherwise there will be notice...

Use the ternary operator, that is, in the statement ? : ;, Use empty to determine whether it is null

A bunch of variables are empty. do not empty spaces

? : You need to know about this operator.

This code retrieves data from the form data of post.
The first line of code mainly checks the null value. it means that if the taste in the _ POST array is empty, the $ taste variable is assigned 1; otherwise, it is the form data.
Other code is similar. This means that implode splits the passed strings into arrays by commas (,).

Similar to xx? A: The format of B is called the three-object operator.

$ V = empty (xxxx )? A: B

$ V is a variable.
= Is a value assignment.
Empty (xxxx )? It is equivalent to a judgment. Empty is a function used to judge whether it is null.
If xxxx is null, $ V is assigned A value.
If xxxx is not empty, the value of $ V is assigned to B.

The answer against the high ticket is as follows: