I tried this:
echo preg_replace('/[^,,$]/', '', ',test,hi,');
But gets:
,,,
views:
36answers:
3
+5
A:
Do you mean
preg_replace('/^,|,$/', '', ',test,hi,');
? Inside a character class […], a leading ^ means negation, and $ doesn't have any special meanings.
You could use the trim function instead.
trim(',test,hi,', ',');
KennyTM
2010-07-01 08:48:31
You beat me by 1 sec ;)
Felix Kling
2010-07-01 08:49:06
Why `[^,,$]` doesn't work?
wamp
2010-07-01 08:49:21
@wamp: Because this is a character group and it says *replace everything that is not a comma or a dollar sign* (a `^` at the beginning of such a group negates the group).
Felix Kling
2010-07-01 08:50:48
@wamp: Because `[^,,$]` means "any characters except `,`, `,` and `$`".
KennyTM
2010-07-01 08:50:59
+4
A:
preg_replace is a bit overkill
$string = ',,ABCD,EFG,,,,';
$newString trim($string,',');
Mark Baker
2010-07-01 08:49:11