Stripping Characters
in [General]
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From: Rick Dwyer on 22 Jun 2010 11:40 Hello List. I need to remove characters from a string and replace them with and underscore. So instead of having something like: $moditem = str_replace("--","_","$mystring"); $moditem = str_replace("?","_","$mystring"); $moditem = str_replace("!","_","$mystring"); .....etc. For every possible character I can think of, is there a way to simply omit any character that is not an alpha character and not a number value from 0 to 9? --Rick
From: =?iso-8859-2?Q?David_=C8esal?= on 22 Jun 2010 11:45 Hello, can this resolve your problem? $trans = array( "from" => "to", "another" => "to"); $moditem = StrTr($moditem, $trans); -- http://cz.php.net/manual/en/function.strtr.php David -----Original Message----- From: Rick Dwyer [mailto:rpdwyer(a)earthlink.net] Sent: Tuesday, June 22, 2010 5:41 PM To: php-general(a)lists.php.net Subject: [PHP] Stripping Characters Hello List. I need to remove characters from a string and replace them with and underscore. So instead of having something like: $moditem = str_replace("--","_","$mystring"); $moditem = str_replace("?","_","$mystring"); $moditem = str_replace("!","_","$mystring"); ....etc. For every possible character I can think of, is there a way to simply omit any character that is not an alpha character and not a number value from 0 to 9? --Rick -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
From: Ashley Sheridan on 22 Jun 2010 11:44 On Tue, 2010-06-22 at 11:40 -0400, Rick Dwyer wrote: > Hello List. > > I need to remove characters from a string and replace them with and > underscore. > > So instead of having something like: > > $moditem = str_replace("--","_","$mystring"); > $moditem = str_replace("?","_","$mystring"); > $moditem = str_replace("!","_","$mystring"); > ....etc. > > For every possible character I can think of, is there a way to simply > omit any character that is not an alpha character and not a number > value from 0 to 9? > > > --Rick > > > Use preg_replace(), which allows you to use a regex to specify what you want to match: $find = '/[^a-z0-9]/i'; $replace = '_'; $new_string = preg_replace($find, $replace, $old_string); Thanks, Ash http://www.ashleysheridan.co.uk
From: Shreyas Agasthya on 22 Jun 2010 12:13 Perhaps, ereg_replace("your regex", "replacement_string", String $variable). Regards, Shreyas On Tue, Jun 22, 2010 at 9:10 PM, Rick Dwyer <rpdwyer(a)earthlink.net> wrote: > Hello List. > > I need to remove characters from a string and replace them with and > underscore. > > So instead of having something like: > > $moditem = str_replace("--","_","$mystring"); > $moditem = str_replace("?","_","$mystring"); > $moditem = str_replace("!","_","$mystring"); > ....etc. > > For every possible character I can think of, is there a way to simply omit > any character that is not an alpha character and not a number value from 0 > to 9? > > > --Rick > > > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php > > -- Regards, Shreyas Agasthya
From: Richard Quadling on 22 Jun 2010 12:15 On 22 June 2010 16:44, Ashley Sheridan <ash(a)ashleysheridan.co.uk> wrote: > On Tue, 2010-06-22 at 11:40 -0400, Rick Dwyer wrote: > >> Hello List. >> >> I need to remove characters from a string and replace them with and >> underscore. >> >> So instead of having something like: >> >> $moditem = str_replace("--","_","$mystring"); >> $moditem = str_replace("?","_","$mystring"); >> $moditem = str_replace("!","_","$mystring"); >> ....etc. >> >> For every possible character I can think of, is there a way to simply >> omit any character that is not an alpha character and not a number >> value from 0 to 9? >> >> >>  --Rick >> >> >> > > > Use preg_replace(), which allows you to use a regex to specify what you > want to match: > > $find = '/[^a-z0-9]/i'; > $replace = '_'; > $new_string = preg_replace($find, $replace, $old_string); > > Thanks, > Ash > http://www.ashleysheridan.co.uk > > > Watch out for white space in there. Tabs, spaces, new lines, etc. will also be converted to underscore. $find = '/[^\w\s]/i'; [^\w\s] Match a single character NOT present in the list below «[^\w\s]» A word character (letters, digits, and underscores) «\w» A whitespace character (spaces, tabs, and line breaks) «\s» "A "word" character is any letter or digit or the underscore character, that is, any character which can be part of a Perl "word". The definition of letters and digits is controlled by PCRE's character tables, and may vary if locale-specific matching is taking place. For example, in the "fr" (French) locale, some character codes greater than 128 are used for accented letters, and these are matched by \w." -- ----- Richard Quadling "Standing on the shoulders of some very clever giants!" EE : http://www.experts-exchange.com/M_248814.html EE4Free : http://www.experts-exchange.com/becomeAnExpert.jsp Zend Certified Engineer : http://zend.com/zce.php?c=ZEND002498&r=213474731 ZOPA : http://uk.zopa.com/member/RQuadling
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