tv_episode.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);
        $output = curl_exec($curl);
        curl_close($curl);

        return $output;
    }

    function toJson($content, $programId)
    {
        $find = 'MoreView.init(' . $programId . ', ';
        $start = strpos($content, $find);
        if ($start === false) {
            throw new Exception("Can't find json data start point.");
        }

        $start += strlen($find);
        $end = strpos($content, ']);', $start);
        if ($end === false) {
            throw new Exception("Can't find json data end point.");
        }

        $moreView = substr($content, $start, $end - $start + 1);

        return json_decode($moreView, true);
    }

    function getJson($content, $programId)
    {
        $data = toJson($content, $programId);

        $result = [];
        $normal_episodes = 0;
        $special_eposodes = 0;
        $old_name = '';
        for ($i = count($data); $i != 0; ) {
            --$i;
            $item = $data[$i];
            $name = trim($item['name']);

            if (empty($name) or $name == $old_name) {
                $seasons = '0';
                $episodes = (string)(++$special_eposodes);
            } else {
                $seasons = '1';
                $episodes = (string)(++$normal_episodes);
            }

            $old_name = $name;

            $title = trim($item['title']);
            $replace_search = ["\r\n", "\n\n", '<br>', '<BR>', '!|'];
            $summary = trim(str_replace($replace_search, "\n", $item['introduceDescription']));
            $lines = [];
            foreach (explode("\n", $summary) as $line) {
                $line = trim($line);
                if (empty($line)) {
                    continue;
                }

                $lines[] = $line;
            }
            $summary = implode("\n", $lines);
            $originallyAvailableAt = null;
            foreach ($item['channels'] as $channel) {
                if (array_key_exists('broadcastDate', $channel) and strlen($channel['broadcastDate']) == 8) {
                    $originallyAvailableAt = $channel['broadcastDate'];
                    break;
                }
            }
            $rating = (float)$item['rate'];

            $result[] = [
                'seasons' => $seasons,
                'episodes' => $episodes,
                'title' => $title,
                'summary' => $summary,
                'originally_available_at' => $originallyAvailableAt,
                'rating' => $rating,
            ];
        }

        return $result;
    }

    function main($programId)
    {
        try {
            $content = curl('https://movie.daum.net/tv/episode?tvProgramId=' . $programId);
            $json = [
                'data' => getJson($content, $programId),
            ];
        } 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('id', $_GET) ? (int)$_GET['id'] : 0);