Jasper Bryant-Greene wrote: > John Nichel wrote: > >> 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. > > > It will work fine, but only because those (\s and \b) just happen to not > be special characters in PHP *at this time*. > > It's sloppy programming because the backslash is known to be a special > character, and \s or \b could conceivably become special characters at > some time in the future. It's unlikely, but possible. > > Not only that, but it makes it more likely that you'll forget and put \n > when you meant \\n, \r when you meant \\r, \t when you meant \\t, and so > on...
Also people thinking that PHP's single-quoted strings don't have any escape sequences run into trouble when they have backslash as the last character of the string: $path = 'c:\'; This will give you parse error because the parser would think that you wanted literal ' character and looks in vain for the string end. The correct line should be: $path = 'c:\\'; Edin -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
