mb_strrpos

(PHP 4 >= 4.0.6, PHP 5)

mb_strrpos — Find position of last occurrence of a string in a string

Opis

int mb_strrpos ( string $haystack , string $needle [, int $offset [, string $encoding ]] )

Performs a multibyte safe strrpos() operation based on the number of characters. needle position is counted from the beginning of haystack . First character's position is 0. Second character position is 1.

Parametry

haystack: The string being checked, for the last occurrence of needle
needle: The string to find in haystack .
offset: May be specified to begin searching an arbitrary number of characters into the string. Negative values will stop searching at an arbitrary point prior to the end of the string.
encoding: Parametr encoding określa kodowanie znaków. Jeśli nie jest podany, to zostanie użyta wewnętrzna wartość kodowania zanków.

Zwracane wartości

Returns the numeric position of the last occurrence of needle in the haystack string. If needle is not found, it returns FALSE.

Rejestr zmian

Wersja	Opis
5.2.0	Added the optional parameter `offset` .

Notatki

Informacja: The encoding parameter was moved from the third position to the fourth in PHP 5.2.0. For backward compatibility, encoding can be specified as the third parameter, but doing so is deprecated and will be removed in the future.

Informacja: Wewnętrzne kodowanie lub kodowanie znaków określone przez mb_regex_encoding() zostanie użyte jako kodowanie znaków dla tej funkcji.

Patrz także

add a note User Contributed Notes
mb_strrpos

28-Nov-2005 03:32


mb_strrpos throws a warning if $haystack is empty. 

strrpos simply returns FALSE.



This is something to be wary of if overloading the mb functions.

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mb_strstr

mb_strripos

Last updated: Fri, 22 Aug 2008