php[world] 2018 - Call for Speakers


(PHP 5, PHP 7)

iconv_strrposFinds the last occurrence of a needle within a haystack


int iconv_strrpos ( string $haystack , string $needle [, string $charset = ini_get("iconv.internal_encoding") ] )

Finds the last occurrence of a needle within a haystack.

In contrast to strrpos(), 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. The characters are counted on the basis of the specified character set charset.

Elenco dei parametri


The entire string.


The searched substring.


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.

Valori restituiti

Returns the numeric position of the last occurrence of needle in haystack.

If needle is not found, iconv_strrpos() will return FALSE.


Questa funzione può restituire il Booleano FALSE, ma può anche restituire un valore non-Booleano valutato come FALSE. Fare riferimento alla sezione Booleans per maggiori informazioni. Usare l'operatore === per controllare il valore restituito da questa funzione.

Vedere anche:

  • strrpos() - Trova la posizione dell'ultima occorrenza di un carattere in una stringa
  • iconv_strpos() - Finds position of first occurrence of a needle within a haystack
  • mb_strrpos() - Find position of last occurrence of a string in a string

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