iconv_strpos
说明
int iconv_strpos ( string haystack, string needle [, int offset [, string charset]] )Finds position of first occurrence of a needle within a haystack.
In contrast to strpos(), the return value of
iconv_strpos() 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
haystackThe entire string.
needleThe searched substring.
offsetThe optional
offsetparameter specifies the position from which the search should be performed.charsetIf
charsetparameter is omitted,stringare 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 first occurrence of
needle in haystack.
If needle is not found,
iconv_strpos() will return FALSE.