(PHP 4 >= 4.0.6, PHP 5, PHP 7)
mb_substr — Get part of string
$str
, int $start
[, int $length = NULL
[, string $encoding = mb_internal_encoding()
]] )
Performs a multi-byte safe
substr() operation based on
number of characters. Position is
counted from the beginning of
str. First character's position is
0. Second character position is 1, and so on.
strThe string to extract the substring from.
start
If start is non-negative, the returned string
will start at the start'th position in
str, counting from zero. For instance,
in the string 'abcdef', the character at
position 0 is 'a', the
character at position 2 is
'c', and so forth.
If start is negative, the returned string
will start at the start'th character
from the end of str.
length
Maximum number of characters to use from str. If
omitted or NULL is passed, extract all characters to
the end of the string.
encodingencoding
인수는 문자 인코딩입니다. 생략하면, 내부 문자 인코딩값을 사용합니다.
mb_substr() returns the portion of
str specified by the
start and
length parameters.
| 버전 | 설명 |
|---|---|
| 5.4.8 |
Passing NULL as length
extracts all characters to the end of the string. Prior to this version
NULL was treated the same as 0.
|