tv_cast.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 getMovieDetail($content)
    {
        $find = '<div class="movie_detail">';
        $start = strpos($content, $find);
        if ($start === false) {
            throw new Exception("Can't find movie_detail start point.");
        }

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

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

    function getTitle($content)
    {
        $find = '<strong class="tit_movie">';
        $start = strpos($content, $find);
        if ($start === false) {
            throw new Exception("Can't find title start point.");
        }

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

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

    function getName($content)
    {
        $find = '<em class="emph_point">';
        $start = strpos($content, $find);
        if ($start === false) {
            return null;
        }

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

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

    }

    function getRole($content)
    {
        $find = '<span class="txt_join">';
        $start = strpos($content, $find);
        if ($start === false) {
            return null;
        }

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

        $span = trim(substr($content, $start, $end - $start));
        if (mb_substr($span, -2) == ' 역') {
            $span = mb_substr($span, 0, -2);
        }

        return $span;
    }

    function getPhoto($content)
    {
        $find = '<img src="';
        $start = strpos($content, $find);
        if ($start === false) {
            return null;
        }

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

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

    }

    function getCast($content)
    {
        $result = [];
        $roleCount = [];
        $list = explode('class="link_join">', $content);
        foreach ($list as $item) {
            $name = getName($item);
            if (is_null($name)) {
                continue;
            }
            $role = getRole($item);
            if (is_null($role)) {
                continue;
            }

            if (array_key_exists($role, $roleCount)) {
                $roleCount[$role] += 1;
                $role = $role . ' ' . $roleCount[$role];
            } else {
                $roleCount[$role] = 1;
            }

            $photo = getPhoto($item);

            $result[] = [
                'name' => $name,
                'role' => $role,
                'photo' => $photo,
            ];
        }

        return $result;
    }

    function getDirectors($content, &$result)
    {
        $directors = getCast($content);
        foreach ($directors as $item) {
            $role = $item['role'];
            if (mb_strpos($role, '감독') !== false or mb_strpos($role, '연출') !== false or mb_strpos($role, '기획') !== false) {
                $result['directors'][] = $item;
            } elseif (mb_strpos($role, '제작') !== false or mb_strpos($role, '프로듀서') !== false) {
                $result['producers'][] = $item;
            } elseif (mb_strpos($role, '극본') !== false or mb_strpos($role, '각본') !== false) {
                $result['writers'][] = $item;
            } else {
                if (!array_key_exists('ohers')) {
                    $result['others'] = [];
                }

                $result['others'][] = $item;
            }
        }
    }

    function getJson($content, &$result)
    {
        $result = [
            'roles' => [],
            'directors' => [],
            'producers' => [],
            'writers' => [],
        ];

        $movieDetail = getMovieDetail($content);

        list($castContent, $directorContent) = explode('<h4 class="tit_movie">제작진</h4>', $movieDetail);
        $result['roles'] = getCast($castContent);
        getDirectors($directorContent, $result);

        return $result;
    }

    function main($programId)
    {try {
            $content = curl('https://movie.daum.net/tv/crew?tvProgramId=' . $programId);
            $json = [
                'data' => getJson($content, $result),
            ];
        } catch (Exception $e) {
            $json = [
                'error' => (string)$e,
            ];
        }

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

    error_reporting(E_ALL);
    main(array_key_exists('id', $_GET) ? (int)$_GET['id'] : 0);