Re: preg_replace anything that isn't WORD

For the record Shawn: I received your previous post from Aug 22 and I think that it is the best solution. Jonathan On Tue, Aug 25, 2009 at 12:41 AM, Shawn McKenzie<nospam@mckenzies.net> wrote: > hack988 hack988 wrote: >>  Use preg_replace_callback instead! >> preg_replace_callback is better performance than preg_replace with /e. >> --------------------------------------------------------------------------------- >> code >> >> $str="cats i  saw a cat and a dog"; >> $str1=preg_replace_callback("/(dog|cat|.)/is","call_replace",$str); >> echo $str."<BR/>"; >> echo $str1; >> function call_replace($match){ >>  if(in_array($match[0],array('cat','dog'))) >>   return $match[0]; >>  else >>   return ""; >> } >> >> 2009/8/24 tedd <tedd.sperling@gmail.com>: >>>> On Sat, Aug 22, 2009 at 12:32 PM, >>>> “•ÈýÏÝ“•ÂÔ<danondaniel@gmail.com> >> wrote: >>>>>  Lets assume I have the string "cats i  saw a cat and a dog" >>>>>  i want to strip everything except "cat" and "dog" so the >>>>> result will be >>>>>  "catcatdog", >>>>>  using preg_replace. >>>>> >>>>> >>>>>  I've tried something like /[^(dog|cat)]+/ but no success >>>>> >>>>  > What should I do? >>> Lot's of ways to skin this cat/dog. >>> >>> What's wrong with exploding the string using spaces and then walking the >>> array looking for cat and dog while assembling the resultant string? >>> >>> Cheers, >>> >>> tedd >>> >>> >>> -- >>> ------- >>> http://sperling.com >>>  http://ancientstones.com >>>  http://earthstones.com >>> >>> -- >>> PHP General Mailing List (http://www.php.net/) >>> To unsubscribe, visit: http://www.php.net/unsub.php >>> >>> >> > Certain posts of mine seem to get sucked into a black hole and I never > see theme.  Maybe because I use this list as a newsgroup?  Anyway, what > I posted before: > > Match everything but only replace the backreference for the words: > > > $s = "cats i  saw a cat and a dog"; > $r = preg_replace('#.*?(cat|dog).*?#', '\1', $s); > > -- > Thanks! > -Shawn > http://www.spidean.com >