(PHP 4 >= 4.0.6, PHP 5)
mb_strcut — Get part of string
$str
   , int $start
   [, int $length = NULL
   [, string $encoding = mb_internal_encoding()
  ]] )mb_strcut() extracts a substring from a string similarly to mb_substr(), but operates on bytes instead of characters. If the cut position happens to be between two bytes of a multi-byte character, the cut is performed starting from the first byte of that character. This is also the difference to the substr() function, which would simply cut the string between the bytes and thus result in a malformed byte sequence.
strThe string being cut.
start
       If start is non-negative, the returned string
       will start at the start'th byte position in
       string, counting from zero. For instance,
       in the string 'abcdef', the byte at
       position 0 is 'a', the
       byte at position 2 is
       'c', and so forth.
      
       If start is negative, the returned string
       will start at the start'th byte
       from the end of string.
      
lengthLength in bytes. If omitted or NULL is passed, extract all bytes to the end of the string.
encodingThe encoding
parameter is the character encoding. If it is omitted, the internal character
encoding value will be used.
   mb_strcut() returns the portion of
   str specified by the
   start and
   length parameters.
  
| Version | Description | 
|---|---|
| 5.4.8 | Passing NULL as lengthextracts all bytes to the end of the string. Prior to this version
        NULL was treated the same as 0. |