php man page for iconv_strpos

ICONV_STRPOS(3) 							 1							   ICONV_STRPOS(3)

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

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

DESCRIPTION
	Finds position of first occurrence of a $needle within a $haystack.

	In  contrast  to strpos(3), the return value of iconv_strpos(3) 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.

PARAMETERS
	      o $haystack
		- The entire string.

	      o $needle
		- The searched substring.

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

	      o $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.

RETURN VALUES
	Returns the numeric position of the first occurrence of $needle in $haystack.

	If $needle is not found, iconv_strpos(3) will return FALSE.

       Warning

	      This function may return Boolean FALSE, but may also return a non-Boolean value which evaluates to FALSE. Please read the section on
	      Booleans for more information. Use the === operator for testing the return value of this function.

SEE ALSO
       strpos(3), iconv_strrpos(3), mb_strpos(3).

PHP Documentation Group 													   ICONV_STRPOS(3)