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Re: why is it always an endless loop? [message #186141 is a reply to message #186140]

Mon, 16 June 2014 16:17

Markus Heinz
Messages: 1
Registered: June 2014

Karma:

Junior Member

Hello.

On 2014-06-16 18:06, richard wrote:

>
> $a="one"
> $b="one"
>
> while ($a=$b){echo "equal"; $b="two";)
>
> This simple code causes an endless loop.
> Why?
>
> As soon as $b is changed, they are no longer equal, yet the loop
continues.
> This does not happen in BASIC.
> If it is placement, where then should $b be placed?
>

You have to change the loop condition to

while ($a === $b)

Otherwise you assign the value of $b to $a if you use only one "=".

Regards

Markus

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[Message index]

		why is it always an endless loop? By: Mr Oldies on Mon, 16 June 2014 16:06
		Re: why is it always an endless loop? By: Markus Heinz on Mon, 16 June 2014 16:17
		Re: why is it always an endless loop? By: Derek Turner on Mon, 16 June 2014 16:19
		Re: why is it always an endless loop? By: Stephan Jaschke on Mon, 16 June 2014 16:19
		Re: why is it always an endless loop? By: Doug Miller on Mon, 16 June 2014 16:35
		Re: why is it always an endless loop? By: Denis McMahon on Mon, 16 June 2014 17:27
		Re: why is it always an endless loop? By: J.O. Aho on Mon, 16 June 2014 18:09
		Re: why is it always an endless loop? By: Luuk on Mon, 16 June 2014 18:32
		Re: why is it always an endless loop? By: Christoph Michael Bec on Mon, 16 June 2014 19:41
		Re: why is it always an endless loop? By: Tim Streater on Mon, 16 June 2014 20:45
		Re: why is it always an endless loop? By: Denis McMahon on Mon, 16 June 2014 21:19
		Re: why is it always an endless loop? By: Evan Platt on Tue, 17 June 2014 03:39
		Re: why is it always an endless loop? By: Arno Welzel on Tue, 17 June 2014 06:20
		Re: why is it always an endless loop? By: Arno Welzel on Tue, 17 June 2014 06:22
		Re: why is it always an endless loop? By: Denis McMahon on Tue, 17 June 2014 15:13

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