string mb_strcut(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.
mb_strcut() returns the portion of
str specified by the
- string $str: The string being cut.
- int $start: If
startis non-negative, the returned string will start at the
start'th byte position in
str, 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.
startis negative, the returned string will start at the
start'th byte from the end of
- int $length [ = NULL]: Length in bytes. If omitted or NULL is passed, extract all bytes to the end of the string.
- string $encoding [ = mb_internal_encoding()]: The
encodingparameter is the character encoding. If it is omitted, the internal character encoding value will be used.