Posted by friglob on 10/19/06 14:32

ollie.mitch@gmail.com wrote:
> Hi,
>
> I need two ereg expressions in my PHP code. One of them needs to check
> that a string only contains letters, and the other needs to check that
> the string only contains letters and commas (only one comma at each
> time).
>
> I thought that the code for only containing letters would be:
>
> eregi("^([a-z])", $keywords);
>
> But this only appears to be checking the first character.
>
> I also have no idea how to do the one that also allows commas (though
> not for lack of trying - believe me!)
>
>
> So, basically, I want one expression that only lets in letters:
> ie. hyasdlhlasdhl but not fhdilfd7800asdads;'
>

eregi("/^[a-z]*$/",$keywords);

* null or more
+ one or more

> and one expression that only lets in letters and commas (one at a
> time):
> ie. hasiaks,asdas,adsads but not hdasl,,ahodsa,ads
>

eregi("[a-z]+,{1}",$keywords);

> Thanks alot.
>

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