iconv_strpos
(PHP 5)
iconv_strpos — Finds position of first occurrence of a needle within a haystack
Popis
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 .
Parametre
- haystack
-
The entire string.
- needle
-
The searched substring.
- offset
-
The optional offset parameter specifies the position from which the search should be performed.
- charset
-
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.
Vrátené hodnoty
Returns the numeric position of the first occurrence of needle in haystack .
If needle is not found, iconv_strpos() will return FALSE.
Táto funkcia môže vrátiť Boolean FALSE, ale môže tiež vrátiť ne-Booleanovskú hodnotu, ktorá sa vyhodnotí ako FALSE, ako je 0 alebo "". Prosím, prečítajte si sekciu o Booleanoch pre viac informácií. Používajte operátor === pre testovanie vrátenej hodnoty tejto funkcie.