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(PHP 4 >= 4.0.6, PHP 5, PHP 7, PHP 8)
mb_substr — Get part of string
$string,$start,$length = null,$encoding = null
Performs a multi-byte safe
substr() operation based on
number of characters. Position is
counted from the beginning of
string. First character's position is
0. Second character position is 1, and so on.
stringThe string to extract the substring from.
start
If start is non-negative, the returned string
will start at the start'th position in
string, 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 string.
length
Maximum number of characters to use from string. If
omitted or null is passed, extract all characters to
the end of the string.
encodingПараметром
encoding вказується кодування символів. Якщо він
пропущений або null, використається внутрішнє кодування.
mb_substr() returns the portion of
string specified by the
start and
length parameters.
| Версія | Опис |
|---|---|
| 8.3.2 |
On invalid strings (those with encoding errors),
character indices are now interpreted in the same manner as most
other mbstring functions. This means that character indices returned
by mb_strpos() can be passed directly.
For SJIS-mac (MacJapanese) strings, character
indices now refer to the indices of the Unicode codepoints produced
when the string is converted to Unicode, which differ from the
character indices for the SJIS-mac characters that
convert to a sequence of several codepoints.
|
| 8.0.0 |
encoding тепер може бути null.
|
