Re: Strange string stuff -- maybe everything is ending...

On 12/21/2012 7:59 PM, Nathan Nobbe wrote:

On Fri, Dec 21, 2012 at 4:10 PM, Nathan Nobbe <quickshiftin@gmail.com>wrote:

On Fri, Dec 21, 2012 at 3:27 PM, Jim Giner <jim.giner@albanyhandball.com>wrote:

On 12/21/2012 5:16 PM, Tedd Sperling wrote:

On Dec 21, 2012, at 4:58 PM, Jim Giner <jim.giner@albanyhandball.com> wrote:

Never realized that you could address a string as an array of chars,

which you are doing. Could that be the issue? Or did I learn something new? Or should you have used substr to remove that last char?

Jim: I guess you learned something new -- that's good. A string is just a "string" of chars. As such, if you define: $a = "tedd"; then: $a[0] is 't'; $a[1] is 'e' $a[2] is 'd' $a[3] is 'd' The only confusing thing here is the length of the string -- in this case the length of this string is four, but $a[4] has not been defined. Cheers, tedd _____________________ tedd@sperling.com http://sperling.com From what I do know, there shouldn't be an a[4].

In any case, let's assume that there is a bug in the string logic that you're using. Why not just use substr? $topic = substr($topic,0,-1); -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php

Neat idea Tedd, but judging by a quick test, I don't think changing the value of the string is entirely supported though that notation. php > $str = 'blah'; php > $str[3] = ''; php > echo $str . PHP_EOL; bla php > echo strlen($str); 4

Another interesting twist along the same lines, seems the string offsets are indeed read only: php > unset($str[3]); Fatal error: Cannot unset string offsets in php shell code on line 1 Call Stack:

  6665.6475     384568   1. {main}() php shell code:0

-nathan That actually makes sense tho. Afterall, a string is truly only one memory allocation whereas array elements are basically multiple vars having the same name. So - how can you unset one char in a string?