Posted by John Nichel on 10/09/35 11:24

Richard Lynch wrote:
> On Fri, August 19, 2005 7:03 am, Matthew Weier O'Phinney wrote:
>
>>* John Nichel <john@kegworks.com> :
>>
>>>Richard Lynch wrote:
>>>
>>>>On Thu, August 18, 2005 2:50 pm, Jon wrote:
>>>>
>>>>>preg_match_all("/Charges \s\s+ $total x (.+) /siU", $single,
>>>>>$from_invoice);
>>>>
>>>>I would recommend using \\s instead of \s -- While \s doesn't have
>>>
>>>any
>>>
>>>>meaning in PHP strings, so PHP just figures you must have meant
>>>
>>>\\s
>>><snip>
>>>
>>>But in perl type regex's, the \s is a space. Without testing it, I
>>>don't think \\s would match what the OP was looking for (I *think*
>
>
> But Perl isn't going to *SEE* \\s !!!
>
> PHP is going to *EAT* \\ and make \ out of it.
>
> That's why \ is an escape character in PHP.
>
> It's also an escape character in Perl/PCRE.
>
> Some days I think PHP's escape character should have been | or
> something, just so this topic wouldn't come up every damn month.
<snip>

Personally, I have never used \\ in PCRE when looking for things like
spaces (\s), word boundraries (\b), etc. and it's all worked out fine.

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