(PHP 4 >= 4.0.6, PHP 5)
mb_strrpos — Find position of last occurrence of a string in a string
$haystack
   , string $needle
   [, int $offset = 0
   [, string $encoding = mb_internal_encoding()
  ]] )
   Performs a multibyte safe
   strrpos() operation based on the 
   number of characters. needle position is
   counted from the beginning of
   haystack. First character's position is
   0. Second character position is 1. 
  
haystack
       The string being checked, for the last occurrence
       of needle
      
needle
       The string to find in haystack.
      
offsetencodingThe encoding
parameter is the character encoding. If it is omitted, the internal character
encoding value will be used.
   Returns the numeric position of
   the last occurrence of needle in the
   haystack string. If
   needle is not found, it returns FALSE.
  
| Version | Description | 
|---|---|
| 5.2.0 | Added the optional parameter offset. | 
Note: The
encodingparameter was moved from the third position to the fourth in PHP 5.2.0. For backward compatibility,encodingcan be specified as the third parameter, but doing so is deprecated and will be removed in the future.