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Re: include capturing wrong value [message #184659 is a reply to message #184658]

Tue, 14 January 2014 17:23

Denis McMahon
Messages: 634
Registered: September 2010

Karma:

Senior Member

On Tue, 14 Jan 2014 11:56:16 -0500, richard wrote:

> $go=$_GET['a'];
> if(empty($go)){$go=0;}
>
> if ($go>=60 and $go<=69) { include
> "http://mroldies.net/songs/19".$go.".html";}
> if ($go>="A" and $go<="Z") <<<<<<
> { include"http://mroldies.net/songs/".$go.".html";}
>
> if ($go==2){include "http://mroldies.net/radio/24hours.php";}
> if ($go==1){include"http://mroldies.net/test/index2.php";}
> if ($go==0){include "http://mroldies.net/home1.php";}
>
> Using this code I now get a warning stating that the file can't be
> found.
> "Zero" returns true for the marked line.
> I can see where that would be the case using or.
> But not AND!

This is your fucked up comprehension of comparison.

> Since "Zero" is less than "A" then the condition returns false.

You are making an incorrect assumption about the way a string variable is
compared to the number 0. You are not comparing the string "Zero" with
the strings "A" and "Z", you are comparing the number 0 with the strings
"A" and "Z". If you check the relevant php documentation, you will
understand that the behaviour here is exactly as it is documented to be.

> Why do I not get the same warning from the first match test?
> "zero" is less than 69 so that should return true.

You are not comparing the string "zero", you are comparing the number 0.
You are only considering part of the test you are discussing in your
above statements. You need to consider the whole test. The behaviour
appears on inspection to be correct.

--
Denis McMahon, denismfmcmahon(at)gmail(dot)com

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[Message index]

		include capturing wrong value By: Mr Oldies on Tue, 14 January 2014 16:56
		Re: include capturing wrong value By: Denis McMahon on Tue, 14 January 2014 17:23
		Re: include capturing wrong value By: Mr Oldies on Tue, 14 January 2014 17:50
		Re: include capturing wrong value By: Christoph Michael Bec on Tue, 14 January 2014 18:07
		Re: include capturing wrong value By: Daniel Pitts on Tue, 14 January 2014 18:10
		Re: include capturing wrong value By: Denis McMahon on Tue, 14 January 2014 18:25
		Re: include capturing wrong value By: Arno Welzel on Thu, 23 January 2014 17:50
		Re: include capturing wrong value By: Denis McMahon on Thu, 23 January 2014 18:05
		Re: include capturing wrong value By: Peter H. Coffin on Thu, 23 January 2014 21:56
		Re: include capturing wrong value By: Arno Welzel on Sat, 25 January 2014 09:20
		Re: include capturing wrong value By: Doug Miller on Tue, 14 January 2014 21:20

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