mb_substr
(PHP 4 >= 4.0.6, PHP 5, PHP 7)
mb_substr — Get part of string
Description
$str
, int $start
[, int $length
= NULL
[, string $encoding
= mb_internal_encoding()
]] ) : string
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.
Parameters
-
str
-
The string to extract the substring from.
-
start
-
If
start
is non-negative, the returned string will start at thestart
'th position instr
, 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 thestart
'th character from the end ofstr
. -
length
-
Maximum number of characters to use from
str
. If omitted or NULL is passed, extract all characters to the end of the string. -
encoding
-
The
encoding
parameter is the character encoding. If it is omitted, the internal character encoding value will be used.
Changelog
Version | Description |
---|---|
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.
|
See Also
- mb_strcut() - Get part of string
- mb_internal_encoding() - Set/Get internal character encoding
English translation
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Document created the 30/01/2003, last modified the 26/10/2018
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