needle: /
string: o/a/i
if before_needle is 1 then needle is excluded: "o/a"
if before_needle is false then needle is included: "/i"
as code:
$str="o/a/i";
$cs="/";
echo "if before_needle == 1 then needle is excluded"."\n";
$str="o/a/i";
$cs="/";
echo mb_strrchr ($str,$cs,1)."\n";
echo "if before_needle == false then needle is included"."\n";
$str="o/a/i";
$cs="/";
echo mb_strrchr ($str,$cs,0)."\n";
mb_strrchr
(PHP 5 >= 5.2.0, PHP 7)
mb_strrchr — Finds the last occurrence of a character in a string within another
설명
string mb_strrchr
( string
$haystack
, string $needle
[, bool $part = false
[, string $encoding = mb_internal_encoding()
]] )
mb_strrchr() finds the last occurrence of
needle in haystack
and returns the portion of haystack.
If needle is not found, it returns FALSE.
인수
-
haystack -
The string from which to get the last occurrence of
needle -
needle -
The string to find in
haystack -
part -
Determines which portion of
haystackthis function returns. If set toTRUE, it returns all ofhaystackfrom the beginning to the last occurrence ofneedle. If set toFALSE, it returns all ofhaystackfrom the last occurrence ofneedleto the end, -
encoding -
Character encoding name to use. If it is omitted, internal character encoding is used.
반환값
Returns the portion of haystack.
or FALSE if needle is not found.
참고
- strrchr() - 문자열에서 문자가 마지막으로 나오는 부분을 찾습니다
- mb_strstr() - Finds first occurrence of a string within another
- mb_strrichr() - Finds the last occurrence of a character in a string within another, case insensitive
add a note
User Contributed Notes 1 note
Anonymous ¶
1 year ago
