mb_strripos
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.
mb_strrpos
(PHP 4 >= 4.0.6, PHP 5)
mb_strrpos — Find position of last occurrence of a string in a string
Descrizione
int mb_strrpos
( string
$haystack
, string $needle
[, int $offset = 0
[, 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.
Elenco dei parametri
-
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 -
Il parametro
encodingè la codifica dei caratteri. Se è omesso, verrà utilizzata la codifica interna.
Valori restituiti
Returns the numeric position of
the last occurrence of needle in the
haystack string. If
needle is not found, it returns FALSE.
Log delle modifiche
| Versione | Descrizione |
|---|---|
| 5.2.0 | Added the optional parameter offset. |
Note
Nota: The
encodingparameter was moved from the third position to the fourth in PHP 5.2.0. For backward compatibility,encodingcan be specified as the third parameter, but doing so is deprecated and will be removed in the future.
Vedere anche:
- mb_strpos() - Find position of first occurrence of string in a string
- mb_internal_encoding() - Set/Get internal character encoding
- strrpos() - Trova la posizione dell'ultima occorrenza di un carattere in una stringa
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User Contributed Notes
mb_strrpos - [1 notes]