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Re: Declaring an array necessary? [message #184974 is a reply to message #184969]

Fri, 21 February 2014 21:58

M. Strobel
Messages: 386
Registered: December 2011

Karma:

Senior Member

Am 21.02.2014 18:56, schrieb The Natural Philosopher:
> I was just wondering. Php assumes a varibale exists as soon as it is assigned a
> value, but a function exists to create an array..

I would rather say: PHP creates a variable as soon as you assign a value to one that
does not exist.

> Sop can one just say
>
> $arr['hello']='sexy';
>
> or should there be
>
> $arr=array();
>
> first?
>

I would do a
$arr = array()
before I start to store data from the database into it, because a query could give
zero records, and I don't want my script killed on the next foreach.

There is redundancy in many programming languages, in the sense that you can get the
same result with several different expressions. So I would not worry too much about
why array() exists.

/Str.

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[Message index]

		Declaring an array necessary? By: The Natural Philosoph on Fri, 21 February 2014 17:56
		Re: Declaring an array necessary? By: Christian Stadler on Fri, 21 February 2014 20:04
		Re: Declaring an array necessary? By: Jerry Stuckle on Fri, 21 February 2014 20:48
		Re: Declaring an array necessary? By: The Natural Philosoph on Fri, 21 February 2014 21:32
		Re: Declaring an array necessary? By: Gregor Kofler on Fri, 21 February 2014 21:55
		Re: Declaring an array necessary? By: Tim Streater on Fri, 21 February 2014 22:06
		Re: Declaring an array necessary? By: M. Strobel on Fri, 21 February 2014 21:58
		Re: Declaring an array necessary? By: Daniel Pitts on Fri, 21 February 2014 22:03

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