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Re: bug in is_numeric [message #181360 is a reply to message #181352]

Mon, 13 May 2013 17:55

J.O. Aho
Messages: 194
Registered: September 2010

Karma:

Senior Member

On 13/05/13 16:15, fred wrote:

> Otherwise I'm done repeating myself.
>>> if(is_numeric('x11.11c') returns TRUE
>>> and variations eg: z1111x is also true
> >
>> Could you try the following code and let me know what comes out?
>> <?php $a = is_numeric('x11.11c'); var_dump($a); ?>
>
> OK I get false when I do that.
> "bool(false)" to be more precise.
> var_export($a)also reports false if thats any help.
>
> I have just typed in an exact copy of the test in my message of 02:58pm
> When you have run that on an apache PHP installation of the same version
> PHP as I listed (5.3.6) under windows7-64 bit - get back to me.

Apparently there is nothing wrong with your is_numeric() as you state
var_export did return "bool(false)" which is the expected result.

you fail to show the code you actually used (the example you gave don't
have correct syntax, so I doubt it's from your actual code, just
something you wrote).

As other already pointed out, you are most likely expecting a specific
value to been set, but most likely it's another value (bad coding which
uses "global" values which are used in many functions will in most cases
have a more random nature of what value it will have) or that your
if-statement includes a negation for example:

if(!is_numeric("abcdef")) {
echo "my code is buggy, not is_numeric()\n";
}

By the way, var_export() don't return false, it will return null by
default or a string (if you set the return argument to true).
If you made a check on what var_export() returned and you got it to be
equal to false, then your method of checking the return value is utterly
flawed.

The release of PHP 5.3.6 is over two years ago, and if there had been a
bug, then it had been discovered a lot earlier than now on a function
which is heavily used in a lot of PHP code and the code base isn't
platform dependent.

My recommendation would be to upgrade to 5.4.14, if you can't find it
for your OS, then upgrade to one which provides it.

--

//Aho

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[Message index]

		bug in is_numeric By: fred on Sun, 12 May 2013 14:22
		Re: bug in is_numeric By: Salvatore on Sun, 12 May 2013 15:31
		Re: bug in is_numeric By: Luuk on Sun, 12 May 2013 15:55
		Re: bug in is_numeric By: Luuk on Sun, 12 May 2013 15:58
		Re: bug in is_numeric By: Thomas Mlynarczyk on Sun, 12 May 2013 16:06
		Re: bug in is_numeric By: Denis McMahon on Sun, 12 May 2013 16:24
		Re: bug in is_numeric By: fred on Sun, 12 May 2013 17:41
		Re: bug in is_numeric By: Erwin Moller on Mon, 13 May 2013 11:50
		Re: bug in is_numeric By: fred on Mon, 13 May 2013 13:58
		Re: bug in is_numeric By: Jerry Stuckle on Mon, 13 May 2013 14:11
		Re: bug in is_numeric By: fred on Mon, 13 May 2013 14:15
		Re: bug in is_numeric By: Erwin Moller on Mon, 13 May 2013 15:29
		Re: bug in is_numeric By: J.O. Aho on Mon, 13 May 2013 17:55
		Re: bug in is_numeric By: Richard Yates on Tue, 14 May 2013 13:41
		Re: bug in is_numeric By: SwissCheese on Wed, 15 May 2013 01:43
		Re: bug in is_numeric By: Jerry Stuckle on Wed, 15 May 2013 03:01
		Re: bug in is_numeric By: SwissCheese on Wed, 15 May 2013 09:48
		Re: bug in is_numeric By: Jerry Stuckle on Wed, 15 May 2013 10:11
		Re: bug in is_numeric By: SwissCheese on Thu, 16 May 2013 22:36
		Re: bug in is_numeric By: Thomas 'PointedEars' on Wed, 15 May 2013 13:19
		Re: bug in is_numeric By: Christoph Becker on Wed, 15 May 2013 18:23
		Re: bug in is_numeric By: Thomas 'PointedEars' on Wed, 15 May 2013 18:49
		Re: bug in is_numeric By: Christoph Becker on Wed, 15 May 2013 19:58
		Re: bug in is_numeric By: Thomas 'PointedEars' on Wed, 15 May 2013 20:20
		Re: bug in is_numeric By: Christoph Becker on Wed, 15 May 2013 20:42
		Re: bug in is_numeric By: Thomas Mlynarczyk on Wed, 15 May 2013 21:53
		Re: bug in is_numeric By: Christoph Becker on Wed, 15 May 2013 22:29
		Re: bug in is_numeric By: Christoph Becker on Wed, 15 May 2013 22:40
		Re: bug in is_numeric By: Thomas 'PointedEars' on Thu, 16 May 2013 03:00
		Re: bug in is_numeric By: SwissCheese on Thu, 16 May 2013 22:16
		Re: bug in is_numeric By: Thomas 'PointedEars' on Thu, 16 May 2013 22:45
		Re: bug in is_numeric By: SwissCheese on Fri, 17 May 2013 02:52
		Re: bug in is_numeric By: Thomas 'PointedEars' on Fri, 17 May 2013 16:33
		Re: bug in is_numeric By: Christoph Becker on Fri, 17 May 2013 18:39
		Re: bug in is_numeric By: Thomas 'PointedEars' on Fri, 17 May 2013 21:45
		Re: bug in is_numeric By: Christoph Becker on Sat, 18 May 2013 12:47
		Re: bug in is_numeric By: SwissCheese on Thu, 16 May 2013 00:57
		Re: bug in is_numeric By: Jerry Stuckle on Thu, 16 May 2013 04:09
		Re: bug in is_numeric By: Christoph Becker on Thu, 16 May 2013 23:17
		Re: bug in is_numeric By: Jerry Stuckle on Fri, 17 May 2013 00:30
		Re: bug in is_numeric By: Christoph Becker on Sat, 18 May 2013 12:51
		Re: bug in is_numeric By: Jerry Stuckle on Sat, 18 May 2013 14:07
		Re: bug in is_numeric By: Sanders Kaufman on Sat, 18 May 2013 16:56
		Re: bug in is_numeric By: Jerry Stuckle on Sat, 18 May 2013 18:32
		Re: bug in is_numeric By: Thomas 'PointedEars' on Sat, 18 May 2013 20:24
		Re: bug in is_numeric By: Jerry Stuckle on Sat, 18 May 2013 21:01
		Re: bug in is_numeric By: Denis McMahon on Sat, 18 May 2013 21:58
		Re: bug in is_numeric By: Jerry Stuckle on Sat, 18 May 2013 23:21
		Re: bug in is_numeric By: Denis McMahon on Sun, 19 May 2013 02:22
		Re: bug in is_numeric By: Jerry Stuckle on Sun, 19 May 2013 02:41
		Re: bug in is_numeric By: Sanders Kaufman on Sun, 19 May 2013 10:28
		Re: bug in is_numeric By: Jerry Stuckle on Sun, 19 May 2013 13:42
		Re: bug in is_numeric By: Sanders Kaufman on Sun, 19 May 2013 16:42
		Re: bug in is_numeric By: Jerry Stuckle on Sun, 19 May 2013 18:39
		Re: bug in is_numeric By: Sanders Kaufman on Tue, 21 May 2013 06:01
		Re: bug in is_numeric By: Jerry Stuckle on Tue, 21 May 2013 09:59
		Re: bug in is_numeric By: The Natural Philosoph on Sun, 19 May 2013 06:49
		Re: bug in is_numeric By: Sanders Kaufman on Sun, 19 May 2013 10:31
		Re: bug in is_numeric By: The Natural Philosoph on Sun, 19 May 2013 11:39
		Re: bug in is_numeric By: Jerry Stuckle on Sun, 19 May 2013 13:43
		Re: bug in is_numeric By: Sanders Kaufman on Sun, 19 May 2013 16:52
		Re: bug in is_numeric By: Jerry Stuckle on Sun, 19 May 2013 18:42
		Re: bug in is_numeric By: Sanders Kaufman on Tue, 21 May 2013 06:03
		Re: bug in is_numeric By: Jerry Stuckle on Tue, 21 May 2013 10:00
		Re: bug in is_numeric By: Sanders Kaufman on Sun, 19 May 2013 16:45
		Re: bug in is_numeric By: Sanders Kaufman on Sun, 19 May 2013 10:27
		Re: bug in is_numeric By: Jerry Stuckle on Sun, 19 May 2013 13:45
		Re: bug in is_numeric By: Sanders Kaufman on Sun, 19 May 2013 16:37
		Re: bug in is_numeric By: Jerry Stuckle on Sun, 19 May 2013 18:43
		Re: bug in is_numeric By: Sanders Kaufman on Tue, 21 May 2013 05:59
		Re: bug in is_numeric By: Jerry Stuckle on Tue, 21 May 2013 10:02
		Re: bug in is_numeric By: Sanders Kaufman on Sat, 18 May 2013 22:08
		Re: bug in is_numeric By: The Natural Philosoph on Sat, 18 May 2013 22:58
		Re: bug in is_numeric By: Jerry Stuckle on Sat, 18 May 2013 23:22
		Re: bug in is_numeric By: Sanders Kaufman on Sat, 18 May 2013 22:11
		Re: bug in is_numeric By: Jerry Stuckle on Sat, 18 May 2013 23:23
		Re: bug in is_numeric By: Sanders Kaufman on Sun, 19 May 2013 10:35
		Re: bug in is_numeric By: Jerry Stuckle on Sun, 19 May 2013 13:46
		Re: bug in is_numeric By: Sanders Kaufman on Sun, 19 May 2013 16:23
		Re: bug in is_numeric By: Jerry Stuckle on Sun, 19 May 2013 18:44
		Re: bug in is_numeric By: Sanders Kaufman on Tue, 21 May 2013 05:54
		Re: bug in is_numeric By: Jerry Stuckle on Tue, 21 May 2013 10:03
		Re: bug in is_numeric By: fred on Thu, 23 May 2013 14:38
		Re: bug in is_numeric By: Arno Welzel on Sat, 01 June 2013 15:36
		Re: bug in is_numeric By: Jerry Stuckle on Sat, 01 June 2013 18:54
		Re: bug in is_numeric By: Arno Welzel on Wed, 05 June 2013 13:25
		Re: bug in is_numeric By: Jerry Stuckle on Wed, 05 June 2013 14:34
		Re: bug in is_numeric By: Arno Welzel on Wed, 05 June 2013 15:02
		Re: bug in is_numeric By: Jerry Stuckle on Wed, 05 June 2013 16:30
		OT: What you say is not always what you mean (was: Re: bug in is_numeric) By: Arno Welzel on Wed, 05 June 2013 18:20
		Re: OT: What you say is not always what you mean By: Jerry Stuckle on Wed, 05 June 2013 18:40
		Re: bug in is_numeric By: Thomas 'PointedEars' on Sat, 18 May 2013 19:51
		Re: bug in is_numeric By: Sanders Kaufman on Sat, 18 May 2013 22:13
		Re: bug in is_numeric By: Thomas 'PointedEars' on Sat, 18 May 2013 22:49
		Re: bug in is_numeric By: Sanders Kaufman on Sun, 19 May 2013 10:24
		Re: bug in is_numeric By: Thomas 'PointedEars' on Sun, 19 May 2013 10:40
		Re: bug in is_numeric By: The Natural Philosoph on Sun, 19 May 2013 11:43
		Re: bug in is_numeric By: Sanders Kaufman on Sun, 19 May 2013 16:29
		Re: bug in is_numeric By: Norman Peelman on Sat, 18 May 2013 18:53
		Re: bug in is_numeric By: SwissCheese on Thu, 16 May 2013 22:41
		Re: bug in is_numeric By: Daniel Pitts on Mon, 13 May 2013 15:35
		Re: bug in is_numeric By: Denis McMahon on Mon, 13 May 2013 20:26
		Re: bug in is_numeric By: Denis McMahon on Mon, 13 May 2013 20:15
		Re: bug in is_numeric By: Robert Heller on Sun, 12 May 2013 18:03
		Re: bug in is_numeric By: Thomas 'PointedEars' on Sun, 12 May 2013 16:03
		Re: bug in is_numeric By: fred on Sun, 12 May 2013 17:34
		Re: bug in is_numeric By: Thomas 'PointedEars' on Sun, 12 May 2013 17:40
		Re: bug in is_numeric By: Luuk on Sun, 12 May 2013 19:51
		Re: bug in is_numeric By: Sanders Kaufman on Sun, 12 May 2013 16:47
		Re: bug in is_numeric By: Luuk on Sun, 12 May 2013 16:56
		Re: bug in is_numeric By: Thomas Mlynarczyk on Sun, 12 May 2013 17:05
		Re: bug in is_numeric By: Thomas 'PointedEars' on Sun, 12 May 2013 17:38
		Re: bug in is_numeric By: Thomas 'PointedEars' on Sun, 12 May 2013 17:46
		Re: bug in is_numeric By: Jerry Stuckle on Sun, 12 May 2013 18:11
		Re: bug in is_numeric By: Thomas 'PointedEars' on Sun, 12 May 2013 18:39
		Re: bug in is_numeric By: Jerry Stuckle on Sun, 12 May 2013 20:51
		Re: bug in is_numeric By: Thomas 'PointedEars' on Sun, 12 May 2013 23:27
		Re: bug in is_numeric By: Jerry Stuckle on Mon, 13 May 2013 00:35
		Re: bug in is_numeric By: Thomas 'PointedEars' on Mon, 13 May 2013 09:07
		Re: bug in is_numeric By: Jerry Stuckle on Mon, 13 May 2013 13:02
		Re: bug in is_numeric By: Thomas 'PointedEars' on Mon, 13 May 2013 14:57
		Re: bug in is_numeric By: Thomas 'PointedEars' on Mon, 13 May 2013 15:10
		Re: bug in is_numeric By: Jerry Stuckle on Mon, 13 May 2013 17:52
		Re: bug in is_numeric By: Thomas 'PointedEars' on Mon, 13 May 2013 18:28
		Re: bug in is_numeric By: SwissCheese on Thu, 16 May 2013 22:28
		Re: bug in is_numeric By: Thomas 'PointedEars' on Thu, 16 May 2013 22:33
		Re: bug in is_numeric By: SwissCheese on Fri, 17 May 2013 02:34
		Re: bug in is_numeric By: Thomas 'PointedEars' on Sat, 18 May 2013 08:28
		Re: bug in is_numeric By: Norman Peelman on Sat, 18 May 2013 12:00
		Re: bug in is_numeric By: Luuk on Sat, 18 May 2013 12:18
		Re: bug in is_numeric By: Tim Streater on Sat, 18 May 2013 12:20
		Re: bug in is_numeric By: Jerry Stuckle on Sat, 18 May 2013 12:47
		Re: bug in is_numeric By: The Natural Philosoph on Sat, 18 May 2013 13:05
		Re: bug in is_numeric By: Jerry Stuckle on Sat, 18 May 2013 14:16
		Re: bug in is_numeric By: Thomas 'PointedEars' on Sat, 18 May 2013 14:14
		Re: bug in is_numeric By: Sandman on Tue, 14 May 2013 08:34
		Re: bug in is_numeric By: fred on Tue, 14 May 2013 13:47
		Re: bug in is_numeric By: Denis McMahon on Tue, 14 May 2013 14:54
		Re: bug in is_numeric By: Sandman on Wed, 15 May 2013 06:05
		Re: bug in is_numeric By: Jerry Stuckle on Wed, 15 May 2013 10:27
		Re: bug in is_numeric By: Erwin Moller on Wed, 15 May 2013 11:11

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