split keywords into array

[Geoff Berrow]

Does anyone know what regular expression I would use to split text into
an array, assuming the text can be separated by any non alphanumeric
character?

e.g

$string ="cat,dog fish, mouse -elephant/tiger";

would give

Array
(
[0] =cat
[1] =dog
[2] =fish
[3] =mouse
[4] =elephant
[5] =tiger
)
--
Geoff Berrow (put thecat out to email)
It's only Usenet, no one dies.
My opinions, not the committee's, mine.
Simple RFDs http://www.ckdog.co.uk/rfdmaker/

[Rik]

Re: split keywords into array

On Tue, 24 Jul 2007 18:11:53 +0200, Geoff Berrow <blthecat@ckdog .co.uk
wrote:

Does anyone know what regular expression I would use to split text into
an array, assuming the text can be separated by any non alphanumeric
character?

$array = preg_split('/\W+/',$string,-1,PREG_SPLIT_NO _EMPTY);

\W = non-word character

"A "word" character is any letter or digit or the underscore character,
that is, any character which can be part of a Perl "word". The definition
of letters and digits is controlled by PCRE's character tables, and may
vary if locale-specific matching is taking place. For example, in the "fr"
(French) locale, some character codes greater than 128 are used for
accented letters, and these are matched by \w."

--
Rik Wasmus

[Geoff Berrow]

Re: split keywords into array

Message-ID: <op.tvy9w7siqnv 3q9@metalliumfr om Rik contained the
following:

>

>Does anyone know what regular expression I would use to split text into
>an array, assuming the text can be separated by any non alphanumeric
>character?

>
>$array = preg_split('/\W+/',$string,-1,PREG_SPLIT_NO _EMPTY);

Thanks Rik. :-)


--
Geoff Berrow (put thecat out to email)
It's only Usenet, no one dies.
My opinions, not the committee's, mine.
Simple RFDs http://www.ckdog.co.uk/rfdmaker/

[Rik]

Re: split keywords into array

On Tue, 24 Jul 2007 19:12:53 +0200, Geoff Berrow <blthecat@ckdog .co.uk
wrote:

Message-ID: <op.tvy9w7siqnv 3q9@metalliumfr om Rik contained the
following:
>

>>

>>Does anyone know what regular expression I would use to split text into
>>an array, assuming the text can be separated by any non alphanumeric
>>character?

>>
>$array = preg_split('/\W+/',$string,-1,PREG_SPLIT_NO _EMPTY);

>
Thanks Rik. :-)
>

No problem.
BTW, if you also want to split on the underscore:
$array = preg_split('/(\W|_)+/',$string,-1,PREG_SPLIT_NO _EMPTY);
--
Rik Wasmus