Podręcznik PHP
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# iconv_substr

(PHP 5)

iconv_substr -- Cut out part of a string

## Opis

string iconv_substr ( string str, int offset [, int length [, string charset]] )

Cuts a portion of `str` specified by the `offset` and `length` parameters.

## Parametry

`str`

  The original string.

`offset`

  If `offset` is non-negative, iconv_substr() cuts the portion out of `str` beginning at `offset`'th character, counting from zero.

  If `offset` is negative, iconv_substr() cuts out the portion beginning at the position, `offset` characters away from the end of `str`.

`length`

  If `length` is given and is positive, the return value will contain at most `length` characters of the portion that begins at `offset` (depending on the length of `string`).

  If negative `length` is passed, iconv_substr() cuts the portion out of `str` from the `offset`'th character up to the character that is `length` characters away from the end of the string. In case `offset` is also negative, the start position is calculated beforehand according to the rule explained above.

`charset`

  If `charset` parameter is omitted, `string` are assumed to be encoded in iconv.internal_charset.

  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.

## Zwracane wartości

Returns the portion of `str` specified by the `offset` and `length` parameters.

If `str` is shorter than `offset` characters long, `FALSE` will be returned.

## Patrz także

substr()
mb_substr()
mb_strcut()

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iconv_strrpos | Początek rozdziału | iconv