Posted by Krustov on 07/05/06 15:05

<comp.lang.php>
<Bob Bedford>
<Wed, 5 Jul 2006 16:38:56 +0200>
<44abcefc$0$12618$5402220f@news.sunrise.ch>

> I need help: I've a string that is used to write down a phone number that
> comes from a form and would like to keep it as clean as possible. For
> avoiding people to create twice an account using a different syntax.
>
> For this the only char I'd like to allow are number 0-9, '/','.' and spaces.
>
> I'd like to replace everything other by a "space".
>
> Lets give some examples:
>
> some allowed:
> 555/55.55.55
> 555 55 55 55
> 555.555 555
>
> some not allowed and their changes:
> 555-55-55-55 -> 555.55.55.55
> 555,55,55,55 -> 555.55.55.55
> 555:55;55_55 -> 555.55.55.55
> 55555\55>55 -> 55555.55.55
> and so on.
>
> How can I do that ? I'm not confortable with ereg_replace, so if you could
> give the final statement it would be greately appreciated.
>

The following is a cut-n-paste from another newsgroup .....

> if (string_reject('ABCDEFGHIJKLMNOPQRSTUZWXYZabcdefghijklmnopqrstuvwxyz_
> 0123',$skank)) {$pass=0;}
>
> Something simple like the above would be so much easier in some cases .
>
> Stuff like [^ makes it hard to understand .

$checkthis="555:55;55_55";
$ok="0123456789\.";
string_reject($checkthis,$ok)

function string_reject($mystring,$allowed)
{
return ereg("[^".$allowed."]",$mystring);
}

Perhaps sombody on here could alter/add the appropriate code to do what
you require it to do .


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