In PHP, the iconv_strrpos() function is used to findsthe last occurrence of a needle within a haystack. Or, we can say that the iconv_strrpos() function returns the last character number from the haystack.
Syntax
string iconv_strrpos(string $haystack, str $needle, str $encoding)
Parameters
iconv_strrpos() accepts three parameters: $haystack, $needle and $encoding.
$haystack− It denotes the whole string.
$needle− The $needle parameter is used to search the substring from the given whole string.
$encoding− if the $encoding parameter is absent or null, then the string will assume that it may be encoded in iconv.internal_encoding.
Return Values
iconv_strpos() returns the numeric position of the given first occurrence of the needle from the haystack. If the needle is not found, then the function will return False.
Note: From PHP 8.0 version, encoding is nullable and from PHP 7.1, iconv_strpos() function support for the negative offsets has been added.
Example
<?php
# UTF-8 string
$int = iconv_strrpos("hello world!","d", "UTF-8");
// It will returns the number of character
var_dump($int);
?>Output
int(9)