On Fri, 14 Jun 2002, 1LT John W. Holmes wrote:
>-You have your answer, just use this:
>-
>-$outstring = eregi_replace("badword","goodword",$stringtocheck);
>-
>-It'll replace it whether it's at the beginning or end of a string, embedded
>-in a word, or by itself. Isn't that what you want?
>-
Not quite. I want to replace words like "ass" and leave works like
"assumption" in place.
Actually, I did find the answer to the beginning and end of word regex
syntax. It is.
$outstring = \
eregi_replace("[[:<:]]badword[[:>:]]","goodword",$stringtocheck);
This constrains the word and will only act if it is surrounded by
non-alpha characters. It acts just like /< and />. I found this answer
in the MySQL web page of all things...
http://www.mysql.com/doc/R/e/Regexp.html
Thanks for your input.
John
>-Actually, it'd be better and faster to just use str_replace() instead of a
>-regular expression...
>-
>----John Holmes...
>-
>------ Original Message -----
>-From: "John S. Huggins" <[EMAIL PROTECTED]>
>-To: <[EMAIL PROTECTED]>
>-Sent: Friday, June 14, 2002 11:37 AM
>-Subject: [PHP] Beginning /< and end of word /> in eregi_replace
>-
>-
>->
>-> Can it be true that PHP does not implement the beginning and end of word
>-> syntax of regular expressions?
>->
>-> In builing a bad word filter, I find this...
>->
>-> $outstring = eregi_replace("badword$","goodword",$stringtocheck);
>->
>-> will find an occurance of the 'badword' at the end of the string and
>-> replace it.
>->
>-> Similarly,
>->
>-> $outstring = eregi_replace("^badword","goodword",$stringtocheck);
>->
>-> will find an occurance of the 'badword' at the beginning of the string
>-> and replace it.
>->
>-> Also,
>->
>-> $outstring = eregi_replace("badword","goodword",$stringtocheck);
>->
>-> will find all occurances of 'badword' even if they are part of a longer
>-> not so bad word like 'badwordage' and replace it.
>->
>-> Then,
>->
>-> $outstring = eregi_replace(" badword ","goodword",$stringtocheck);
>->
>-> will help me isolate just the actual bad word, but not those at the
>-> beginning and end of a string or that end in a period or comma.
>->
>-> So I could make a rule for each possible placement of badword in a string
>-> and then do this for each vulger term I try to filter. Or I could just
>-> do...
>->
>-> $outstring = eregi_replace("/<badword/>","goodword",$stringtocheck);
>->
>-> Which should find any occurance of 'badword' and nothing more anywhere in
>-> the string. It works in grep. It works in bash. It does not seem to
>-> work in PHP.
>->
>-> Anybody know what I might be doing wrong?
>->
>-> **************************************
>->
>-> John Huggins
>-> VANet
>->
>-> [EMAIL PROTECTED]
>-> http://www.va.net/
>->
>-> **************************************
>->
>->
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>-> PHP General Mailing List (http://www.php.net/)
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>->
>-
>-
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>-
**************************************
John Huggins
VANet
[EMAIL PROTECTED]
http://www.va.net/
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