Description
string
iconv_substr ( string str, int offset [, int length [, string charset]])
Returns the portion of str specified by
the start and length
parameters.
If start is non-negative,
iconv_substr() cuts the portion out of
str beginning at start'th
character, counting from zero.
If start is negative,
iconv_substr() cuts out the portion beginning
at the position, start characters
away from the end of str.
If length is given and is positive, the return
value will contain at most length characters
of the portion that begins at start
(depending on the length of string).
If str is shorter than start
characters long, FALSE will be returned.
If negative length is passed,
iconv_substr() cuts the portion out of
str from the start'th
character up to the character that is
length characters away from the end of the string.
In case start is also negative, the start position
is calculated beforehand according to the rule explained above.
Note that offset and length
parameters are always deemed to represent offsets that are
calculated on the basis of the character set determined by
charset, whilst the counterpart
substr() always takes these for byte offsets.
If charset is not given, the character set
is determined by the iconv.internal_charset
ini setting.
See also substr(), mb_substr()
and mb_strcut().
