Re: RegEx - Chk for special chars

On Apr 30, 9:08 am, gosha bine <stereof...@xxxxxxxxx> wrote:
On 30.04.2007 01:37 M Kinnear wrote:

I want to check a string only contains a-z 0-9 ( ) . and #

I've used

ereg("^[a-zA-z0-9().#]*)$"),$instr)

This line has a syntax error. I'd suggest

preg_match('/^[\w().#]*$/D', $instr)



which parses a string correctly until I try and parse a !,",£,$ ... or any
of the other special/reserved characters.

First q: what am I doing wrong
Second q: is there clarification on whether characters need to be escaped
when part of a regex statement? i.e., should it be [$] or [\$] - some
websites/posts state they should be escaped, others say they shouldn't

Inside a character class ([...]) only slash \ caret ^ and dash - have
special meaning and should be escaped. All other chars are taken
literally. When using double quotes, you also have to escape dollar sign
when it comes before a letter.



Thanks

Matt

--
gosha bine

extended php parser ~http://code.google.com/p/pihipi
blok ~http://www.tagarga.com/blok

and one more thing, the OP had
[a-zA-z]
I think he needs [a-zA-Z] as [A-z] allows more than upper and lower
case letters

.

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