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Re: regex help [message #176243 is a reply to message #176237]

Sat, 10 December 2011 04:25

Curtis Dyer
Messages: 34
Registered: January 2011

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Jerry Stuckle <jstucklex(at)attglobal(dot)net> wrote:

> OK, guys, I'll be the first to admit my regex knowledge is more
> than limited. And I've never used ereg().

My experience with POSIX regexes is also quite limited, but have you
tried Google'ing for comparisons between PCRE (PHP's preg_*
functions are built on top of PCRE) and POSIX regexes?

A quick search turned up: <http://www.regular-
expressions.info/refflavors.html>, which happens to be a helpful
regex site I've used in the past.

> So, I need to convert the following ereg() call in some code I'm
> modifying to a preg() call. Can someone please tell me what the
> ereg() does and the equivalent preg()?
>
> if (ereg("(error</b>:)(.+)(<br)", $buffer, $regs))

With regard to this specific piece of code, I can't see any obvious
differences in the way this regex pattern behaves in PCRE and POSIX.
For differences in how each function behaves differently, simply
consult the PHP documentation (which also contains a section
explaining PCRE regex syntax).

> TIA.

For a more comprehensive understanding of the two flavors, I would
settle for nothing less than reading the PCRE manual and the POSIX
standard regarding its implementation of regexes.

--
Curtis Dyer
<?$x='<?$x=%c%s%c;printf($x,39,$x,39);?>';printf($x,39,$x,39);?>

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[Message index]

		regex help By: Jerry Stuckle on Fri, 09 December 2011 03:51
		Re: regex help By: Denis McMahon on Fri, 09 December 2011 11:55
		Re: regex help By: Jerry Stuckle on Fri, 09 December 2011 12:32
		Re: regex help By: Jerry Stuckle on Fri, 09 December 2011 12:51
		Re: regex help By: Kim Andr Aker on Fri, 09 December 2011 13:16
		Re: regex help By: Jerry Stuckle on Sat, 10 December 2011 02:51
		Re: regex help By: Curtis Dyer on Sat, 10 December 2011 04:25
		Re: regex help By: Denis McMahon on Sat, 10 December 2011 10:01

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