information-system/application/controllers/infofix.php

<?php
if (!defined('BASEPATH'))
  exit('No direct script access allowed');

class infofix extends CI_Controller
{
  var $site_code = '';

  function __construct()
  {
    parent::__construct();
    $this->load->model('Information_model');
    $this->site_code = $this->input->get('site_code') ? $this->input->get('site_code') : $this->config->item('site_code');
  }

  function list_info_by_keys()
  {
    // 防止超时
    set_time_limit(0);

    // json参数
    $site = $this->input->get_post('site');
    $keys = $this->input->get_post('keys');
    $keyArr = explode(',', $keys);

    // 容错
    if (empty($site) || empty($keys) || strpos($keys, '/') === false) {
      echo json_encode(array());
      return false;
    }

    // 关键字信息
    $rs = $this->Information_model->list_by_keywords($site, $keyArr);

    // 调整数据
    foreach ($rs as $info) {
      $keycount = array();
      foreach ($keyArr as $key) {
        // $info->ic_content = utf8_encode($info->ic_content);
        // $info->ic_url = utf8_encode($info->ic_url);

        $sub_url = $info->ic_url == $key ? $info->ic_url : '';
        $pos_content = 0;
        $pos_content = mb_stripos($info->ic_content, $key);
        $sub_content = array();
        while ($pos_content) {
          array_push($sub_content, '[...' . mb_substr($info->ic_content, $pos_content - 20, mb_strlen($key) + 20 * 2) . '...]');
          $pos_content = mb_stripos($info->ic_content, $key, $pos_content + mb_strlen($key));
        }

        if ($sub_url != '' || count($sub_content) != 0) {
          array_push($keycount, array('key' => $key, 'sub_url' => $sub_url, 'sub_content' => $sub_content));
        }
      }
      $info->ic_content = $keycount;
    }

    echo json_encode($rs);

  }

  function update_info_by_keys()
  {
    // json参数
    $site = $this->input->get_post('site');
    $keys = $this->input->get_post('keys');
    $keyArr = explode(',', $keys);

    // 容错
    if (empty($site) || empty($keys) || strpos($keys, '/') === false) {
      echo json_encode(array());
      return false;
    }

  }

}
//end of infofix