Re: Strange string stuff -- maybe everything is ending...
| From: | Louis Colman | Date: | Fri, 21 Dec 2012 23:13:32 +0000 |
| Subject: | Re: Strange string stuff -- maybe everything is ending... | ||
| References: | 1 2 3 4 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-319931@lists.php.net to get a copy of this message | ||
Think that PHP inherited this from the C-language.
The C-language inherited this from good old assembler :-)
Index of the array is the offset from the starting-address of the string.
Suppose the "$a" starts at address 1000 than $a[0] is at 1000 + 0,
$a[1] is at 1000 + 1
$a[2] is at 1000 + 2 etc....
The fact that $a[4] does not exist makes this indeed confusing, perhaps PHP could have solved this internally ?
Gr. Louis
On 12/21/12 23:27, Jim Giner 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: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);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.comNever 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?