iconv_strrpos
(PHP 5)
iconv_strrpos — Finds the last occurrence of a needle within a haystack
說明
In contrast to strpos(), 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.
參數
- 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.
Return值
Returns the numeric position of the last occurrence of needle in haystack . The characters are counted on the basis of the specified character set charset .
If needle is not found, iconv_strrpos() will return FALSE.