iconv_strrpos
(PHP 5, PHP 7)
iconv_strrpos — Finds the last occurrence of a needle within a haystack
说明
$haystack
,
string $needle
[,
string $charset
= ini_get("iconv.internal_encoding") ] ) :
int
Finds the last occurrence of a needle
within a haystack
.
In contrast to strrpos(), the return value of iconv_strrpos() is the number of characters that appear before the needle, rather than the offset in bytes to the position where the needle has been found. The characters are counted on the basis of the specified character set charset
.
参数
-
haystack
-
The entire string.
-
needle
-
The searched substring.
-
charset
-
If
charset
parameter is omitted,string
are assumed to be encoded in iconv.internal_encoding.
If haystack
or needle
is not a string, it is converted to a string and applied as the ordinal value of a character.
返回值
Returns the numeric position of the last occurrence of needle
in haystack
.
If needle
is not found, iconv_strrpos() will return FALSE
.
参见
- strrpos() - 计算指定字符串在目标字符串中最后一次出现的位置
- iconv_strpos() - Finds position of first occurrence of a needle within a haystack
- mb_strrpos() - 查找字符串在一个字符串中最后出现的位置