<?php
class NLP{
    private static $cmd_path;

    // 不以'/'结尾
    static function set_cmd_path($path){
        self::$cmd_path = $path;
    }

    private function cmd($str){
        $descriptorspec = array(
           0 => array("pipe", "r"),
           1 => array("pipe", "w"),
        );
        $cmd = self::$cmd_path . "/ictclas";
        $process = proc_open($cmd, $descriptorspec, $pipes);

        if (is_resource($process)) {
            $str = iconv('utf-8', 'gbk', $str);
            fwrite($pipes[0], $str);
            $output = stream_get_contents($pipes[1]);

            fclose($pipes[0]);
            fclose($pipes[1]);

            $return_value = proc_close($process);
        }

        /*
        $cmd = "printf '$input' | " . self::$cmd_path . "/ictclas";
        exec($cmd, $output, $ret);
        $output = join("\n", $output);
        */

        $output = trim($output);
        $output = iconv('gbk', 'utf-8', $output);

        return $output;
    }

    /**
     * 进行分词, 返回词语列表.
     */
    function tokenize($str){
        $tokens = array();

        $output = self::cmd($input);
        if($output){
            $ps = preg_split('/\s+/', $output);
            foreach($ps as $p){
                list($seg, $tag) = explode('/', $p);
                $item = array(
                    'seg' => $seg,
                    'tag' => $tag,
                    );
                $tokens[] = $item;
            }
        }

        return $tokens;
    }
}
NLP::set_cmd_path(dirname(__FILE__));
?>