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Need help with stripping characters from numbers in array [message #181009] Fri, 05 April 2013 12:01 Go to next message
daveh is currently offline  daveh
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Hello

Given I have an array as such: (as an example)

Array ([0]=>+1.,[1]=>+2.,[2]=>-3.0,[3]=>A3B)

I want to return an array as such: Array ([0]=>1,[1]=>2,[2]=>3,[3]=>A3B)

basically if its a number remove leading + or - char from number and any decimal point but do not do anything with letters or anything with number and char combination such as 2B or A3 and so forth.

I can strip the numbers with this function:

$number = preg_replace("/[[:^digit:]]/", '', $number);

So basically I have to traverse an array element by element check if it is a number and if so strip it otherwise leave it alone and go to next and save the results into an array and the return that array. Or I can simply remove plus, minus or dot chars from every element. (that is all that I would need as that would cover every conceivable scenario)

Can someone suggest how to code this?

Thanks
Re: Need help with stripping characters from numbers in array [message #181010 is a reply to message #181009] Fri, 05 April 2013 13:43 Go to previous messageGo to next message
Salvatore is currently offline  Salvatore
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On 2013-04-05, daveh(at)allheller(dot)net <daveh(at)allheller(dot)net> wrote:
> So basically I have to traverse an array element by element check if it is a number and if so strip it otherwise leave it alone and go to next and save the results into an array and the return that array. Or I can simply remove plus, minus or dot chars from every element. (that is all that I would need as that would cover every conceivable scenario)
>
> Can someone suggest how to code this?

A foreach (key => value) loop?

--
Blah blah bleh...
GCS/CM d(-)@>-- s+:- !a C++$ UBL++++$ L+$ W+++$ w M++ Y++ b++
Re: Need help with stripping characters from numbers in array [message #181011 is a reply to message #181009] Fri, 05 April 2013 14:41 Go to previous messageGo to next message
Christoph Becker is currently offline  Christoph Becker
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daveh wrote:

> Given I have an array as such: (as an example)
>
> Array ([0]=>+1.,[1]=>+2.,[2]=>-3.0,[3]=>A3B)
>
> I want to return an array as such:
> Array ([0]=>1,[1]=>2,[2]=>3,[3]=>A3B)
>
> basically if its a number remove leading + or - char from number and
> any decimal point but do not do anything with letters or anything
> with number and char combination such as 2B or A3 and so forth.

You may consider to slightly rewrite the requirements:

If it's a number, strip superfluous details; otherwise leave it as it is.

This specification leads to the following implementation:

$elt = is_numeric($elt) ? floatval($elt) : $elt;

To return the modified array array_map() seems to be appropriate.

Please wrap your lines to a reasonable width (see e.g.
<http://www.softdevlabs.com/personal/Usenet101.html#LineWrap>). TIA.

--
Christoph M. Becker
Re: Need help with stripping characters from numbers in array [message #181012 is a reply to message #181009] Fri, 05 April 2013 16:49 Go to previous message
daveh is currently offline  daveh
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Thanks for all the help ... I'm on the right track now.
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