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function substr ( $string, $offset, $length ) {#-k string PHP#- Returns the portion of string specified by the offset and length parameters.#- #- The offset of the first character position is 0.#- If offset is >= 0, the returned string will start at the offset, counting from zero. #- If offset is < 0, count will start from the end of string.#- If string is less than offset characters long, false will be returned.#-e Example: $rest = substr("abcdef", -3, 1); // returns "d"#-#- If length is > 0, the string returned will contain at most length characters beginning from offset.#- If length is < 0, then that many characters will be omitted from the end of string #- (after the start position has been calculated when a offset is negative). #- If offset denotes the position of this truncation or beyond, false will be returned.#-e Example: $rest = substr("abcdef", 2, -1); // returns "cde"#-e Example: $rest = substr("abcdef", -3, -1); // returns "de"#- If length is = 0, false or null, an empty string will be returned.#- If length is omitted, the substring starting from offset until the end of the string will be returned. }?>?>