public function nextkey() {
		if ( $this->keyIterPos >= $this->keyIterStop ) {
			return false;
		}
		$keyLen = $this->readInt31( $this->keyIterPos );
		$dataLen = $this->readInt31( $this->keyIterPos + 4 );
		$key = $this->read( $this->keyIterPos + 8, $keyLen );
		$this->keyIterPos += 8 + $keyLen + $dataLen;

		return $key;
	}
public function nextkey() {
		if ( $this->keyIterPos >= $this->keyIterStop ) {
			return false;
		}
		$keyLen = $this->readInt31( $this->keyIterPos );
		$dataLen = $this->readInt31( $this->keyIterPos + 4 );
		$key = $this->read( $this->keyIterPos + 8, $keyLen );
		$this->keyIterPos += 8 + $keyLen + $dataLen;

		return $key;
	}
public function nextkey ( ) { if ( $ this -> keyIterPos >= $ this -> keyIterStop ) { return false ; } $ keyLen = $ this -> readInt31 ( $ this -> keyIterPos ) ; $ dataLen = $ this -> readInt31 ( $ this -> keyIterPos + 4 ) ; $ key = $ this -> read ( $ this -> keyIterPos + 8 , $ keyLen ) ; $ this -> keyIterPos += 8 + $ keyLen + $ dataLen ; return $ key ; }
Get the next key from the CDB file.

@return string|bool Key, or false if no more keys.
Get the next key from the CDB file .