CODEWITHSUNDEEP
php
Tim Joyce
Tim Joyce

Reputation: 4517

Is there a technique for avoiding rewriting long operands in if statements?

I find myself constantly writing if statements like the following:

if(isset($this->request->data['Parent']['child'])){
     $new_var['child'] = $this->request->data['Parent']['child'];
}

My question is, without creating a new shorter variable before the if statement, is there a magic php process that will help avoid having to rewrite $this->request->data['Parent']['child'] in the body of the if statement? I also want to keep the code clean for any successor developers.

I am also not looking for a ternary solution. Something a little more along the lines of jquery's use of this. (That I know of) php doesn't allow anonymous functions or it's not common practice and I'm not saying I want a bunch of anonymous functions all over my classes either.

UPDATE Added in php 7 What does double question mark (??) operator mean in PHP

Upvotes: 4

Views: 153

Answers (5)

dualed
dualed

Reputation: 10512

I am not perfectly sure what you are really looking for, but you could use a custom object for storing your data in that does not generate notices when you try to access non-existent keys.

class Data {
  function __get($key) {
    return null;
  }
}

This works since __get is only called when the key does not exist.

Upvotes: 0

Tarilo
Tarilo

Reputation: 430

Though there are a couple of ways to make your code shorter, I would advice against such techniques. The reason is that most of these techniques make the code a lot less clear for the next person to understand.

I would recommend using a good IDE with code completion, this would help with typing long names while keeping the code clear for the next person to look at it.

Upvotes: 0

dynamic
dynamic

Reputation: 48131

This would be extremly cool, but unfortunaly nothing can do it.
Maybe some plugin for some IDE can help you doing stuff like that.

What I can suggest on this case is what I do personally, without touching mouse move cursor with the arrows near $this then hold CTRL + SHIFT and right arrow and you will be selecting more stuff at once. (Then just use ctrl+c and ctrl+v to copy paste)

Of course this applies to every languages, not only PHP

Upvotes: 2

BnW
BnW

Reputation: 602

You can create a variable in the same condition block, and use it afterwords

if($child = $this->request->data['Parent']['child']){
     $new_var['child'] = $child;
}

The only difference here is that if $this->request->data['Parent']['child'] is set but has a FALSE value (or an empty string, NULL or 0) the test won't pass

Upvotes: 0

crynaldo madrid
crynaldo madrid

Reputation: 648

var $a = "" ; 
 function __construct(){ 
   if(isset($this->request->data['Parent']['child'])){
         $this->a = "1";
    }
   }

now use

if(!empty($this->a)){
// ur code
}

Upvotes: 0

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