tv_search.php

<?php
    function curl($url)
    {
        $ua = 'Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36';
        $curl = curl_init($url);
        curl_setopt($curl, CURLOPT_USERAGENT, $ua);
        curl_setopt($curl, CURLOPT_FAILONERROR, true);
        curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true);
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
        $content = curl_exec($curl);
        curl_close($curl);

        if (empty($content)) {
            throw new Exception("Can't get content, url: " . $url);
        }

        return $content;
    }

    function getTvpColl($content)
    {
        $find = '<div id="tvpColl">';
        $start = strpos($content, $find);
        if ($start === false) {
            throw new Exception("Can't find tvp_coll start point.");
        }

        $start += strlen($find);
        $end = strpos($content, '<div class="line"></div><hr/>', $start);
        if ($end === false) {
            throw new Exception("Can't find tvp_coll end point.");
        }

        return substr($content, $start, $end - $start);
    }

    function getMainTitleId($content, $mediaName)
    {
        $find = '<span class="inner_cont">';
        $start = strpos($content, $find);
        if ($start === false) {
            throw new Exception("Can't find main_title <span> start point.");
        }

        $start += strlen($find);
        $end = strpos($content, '</span>', $start);
        if ($end === false) {
            throw new Exception("Can't find main_title <span> end point.");
        }

        $span = substr($content, $start, $end - $start);

        $end = 0;
        $find_id = '&irk=';
        $find_title = 'event);">';
        while (true) {
            $start = strpos($span, $find_id, $end);
            if ($start === false) {
                throw new Exception("Can't find main_id start point.");
            }

            $start += strlen($find_id);
            $end = strpos($span, '&', $start);
            if ($end === false) {
                throw new Exception("Can't find main_id end point.");
            }

            $id = substr($span, $start, $end - $start);

            $start = strpos($span, $find_title, $start);
            if ($start === false) {
                throw new Exception("Can't find main_title start point.");
            }

            $start += strlen($find_title);
            $end = strpos($span, '</a>', $start);
            if ($end === false) {
                throw new Exception("Can't find main_title end point.");
            }

            $title = substr($span, $start, $end - $start);

            if (strpos(str_replace(' ', '', $title), $mediaName) === false) {
                continue;
            }

            return [$title, $id];
        }

        return implode('', $title_piece);
    }

    function getMainYear($content)
    {
        $find = '<span class="txt_summary">';
        $start = strrpos($content, $find);
        if ($start === false) {
            throw new Exception("Can't find main_year start point.");
        }

        $start += strlen($find);
        $end = strpos($content, '</span>', $start);
        if ($end === false) {
            throw new Exception("Can't find main_year end point.");
        }

        $span = substr($content, $start, $end - $start);
        if (preg_match('/(\d{4})\.\d{1,2}\.\d{1,2}/', $span, $matches) == 0) {
            throw new Exception("Can't fond main_year.");
        }

        return $matches[1];
    }

    function getMainContents($content, &$result, $mediaName)
    {
        list($title, $id) = getMainTitleId($content, $mediaName);
        $year = getMainYear($content);

        $result[] = [
            'title' => $title,
            'id' => $id,
            'year' => $year,
        ];
    }

    function getAltContents($content, &$result)
    {
        $find = '동명 콘텐츠';
        $start = strpos($content, $find);
        if ($start === false) {
            return;
        }

        $end = $start;
        while (true) {
            $find = '&irk=';
            $start = strpos($content, $find, $end);
            if ($start === false) {
                return;
            }

            $start += strlen($find);
            $end = strpos($content, '&', $start);
            if ($end === false) {
                return;
            }

            $id = substr($content, $start, $end - $start);

            $find = 'event);">';
            $start = strpos($content, $find, $end);
            if ($start === false) {
                continue;
            }

            $start += strlen($find);
            $end = strpos($content, '</a>', $start);
            if ($end === false) {
                continue;
            }

            $title = substr($content, $start, $end - $start);

            $find = '<span class="f_eb">';
            $start = strpos($content, $find, $end);
            if ($start === false) {
                continue;
            }

            $start += strlen($find);
            $end = strpos($content, '</span>', $start);
            if ($end === false) {
                continue;
            }

            $span = substr($content, $start, $end - $start);
            if (preg_match('/(\d{4})\)/', $span, $matches) == 0) {
                continue;
            }

            $year = $matches[1];

            $result[] = [
                'title' => $title,
                'id' => $id,
                'year' => $year,
            ];
        }
    }

    function getSeries($content, &$result)
    {
        $find = '<div data-tab="tv_series"';
        $start = strpos($content, $find);
        if ($start === false) {
            return;
        }

        $end = strpos($content, '<script', $start);
        if ($end === false) {
            return;
        }

        $content = substr($content, $start, $end - $start);
        $end = 0;

        while (true) {
            $find = '&irk=';
            $start = strpos($content, $find, $end);
            if ($start === false) {
                return;
            }

            $start += strlen($find);
            $end = strpos($content, '&', $start);
            if ($end === false) {
                return;
            }

            $id = substr($content, $start, $end - $start);

            $find = 'class="f_link_b"';
            $end = strpos($content, $find, $end);
            if ($end === false) {
                return;
            }

            $find = 'event);">';
            $start = strpos($content, $find, $end);
            if ($start === false) {
                continue;
            }

            $start += strlen($find);
            $end = strpos($content, '</a>', $start);
            if ($end === false) {
                continue;
            }

            $title = substr($content, $start, $end - $start);

            $find = '<span class="f_nb">';
            $start = strpos($content, $find, $end);
            if ($start === false) {
                continue;
            }

            $start += strlen($find);
            $end = strpos($content, '.', $start);
            if ($end === false) {
                continue;
            }

            $year = substr($content, $start, $end - $start);

            $result[] = [
                'title' => $title,
                'id' => $id,
                'year' => $year,
            ];
        }
    }

    function getJson($content, $mediaName)
    {
        $result = [];
        $tvpColl = getTvpColl($content);
        getMainContents($tvpColl, $result, str_replace(' ', '', $mediaName));
        getAltContents($tvpColl, $result);
        getSeries($tvpColl, $result);

        return $result;
    }

    function main($mediaName)
    {
        try {
            $content = curl('https://search.daum.net/search?w=tot&q=' . urlencode($mediaName));
            $json = [
                'data' => getJson($content, $mediaName)
            ];
        } catch(Exception $e) {
            $json = [
                'error' => (string)$e,
            ];
        }

        header('Content-Type: application/json');
        $result = json_encode($json, JSON_UNESCAPED_UNICODE);
        echo $result;
    }

    main(array_key_exists('name', $_GET) ? $_GET['name'] : '');