php 한글 메뉴얼 도움말 검색 사이트 Get part of string [function.mb-strcut]

설명

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.

인수

str

The 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.

length

Length in bytes. If omitted or NULL is passed, extract all bytes to the end of the string.

encoding

encoding 인수는 문자 인코딩입니다. 생략하면, 내부 문자 인코딩값을 사용합니다.

반환값

mb_strcut() returns the portion of str specified by the start and length parameters.

변경점

버전	설명
5.4.8	Passing NULL as `length` extracts all bytes to the end of the string. Prior to this version NULL was treated the same as 0.

참고

mb_substr() - Get part of string
mb_internal_encoding() - Set/Get internal character encoding