[RESOLVED] Check for puctuation at the end of str

[zzz]

I need to check if there's any punctuation at the end of a text string and if there are none, add a period.

The punctuations that I would expect are:
.
!
?
...

I guess I would need to trim trailing white space and then probably do something like

$punctuation = substr(trim($myStr) , -1); 

if ($punctuation != '.' && $punctuation != '!'  && $punctuation != '?' ) {
   $myStr .= '.';
}

Wait, did I just figure it out? Seems a bit awkward though...

[bradgrafelman]

if(!preg_match('/[.!?]\s*$/', $myStr)) {
    $myStr .= '.';
}

[NogDog]

Slightly different regexp approach:

$text = preg_replace('/(?<=[^.?!])$/', '.', rtrim($text));