Forum und email


(PHP 5)

iconv_strpos -- Finds position of first occurrence of a needle within a haystack


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.

Seznam parametrů


The entire string.


The searched substring.


The optional offset parameter specifies the position from which the search should be performed.


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.

Návratové hodnoty

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

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


Tato funkce může vracet booleovskou hodnotu FALSE, ale také nebooleovskou hodnotu odpovídající ohodnocení FALSE, například 0 nebo "". Čtěte prosím sekci o typu Boolean, kde najdete více informací. Pro testování návratové hodnoty této funkce použijte operátor ===.