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","creator":{"public_name":"","id":49738,"is_tutor":false},"comments":[{"creator":{"public_name":"Kirill Mokevnin","id":6410,"is_tutor":false},"id":2612,"body":"Добавили текста в теорию","topic_id":1504}],"communitable":{"parent_entity_name":null,"parent_entity_url":null,"entity_name":"Hello World","entity_url":null,"active":true}},{"id":2871,"title":"в командной строке babun после \"php -a\" появляется \"Interactive mode enabled\", но последующие команды не выполняются, сообщения об ошибке нет.","plain_title":"в командной строке babun после \"php -a\" появляется \"Interactive mode enabled\", но последующие команды не выполняются, сообщения об ошибке нет. ","creator":{"public_name":"Татьяна Добролюбова","id":93964,"is_tutor":false},"comments":[{"creator":{"public_name":"Татьяна Добролюбова","id":93964,"is_tutor":false},"id":4657,"body":"Спасибо!","topic_id":2871},{"creator":{"public_name":"Kirill Mokevnin","id":1,"is_tutor":false},"id":4655,"body":"'Interactive mode' это не тоже самое что 'Interactive shell'. Тут http://php.net/manual/en/features.commandline.interactive.php в комментариях есть описание различий.","topic_id":2871}],"communitable":{"parent_entity_name":null,"parent_entity_url":null,"entity_name":"Hello World","entity_url":null,"active":true}},{"id":2611,"title":"У меня айфон и как тут с ним написать программу и где писать я не пойму?","plain_title":"У меня айфон и как тут с ним написать программу и где писать я не пойму? ","creator":{"public_name":"Артур Семедов","id":94763,"is_tutor":false},"comments":[{"creator":{"public_name":"Kirill Mokevnin","id":1,"is_tutor":false},"id":4248,"body":"Боюсь что с айфона работать с кодом у вас не получится. Система рассчитана на работу через ноутбук/стационарный компьютер.","topic_id":2611},{"creator":{"public_name":"Артур Семедов","id":94763,"is_tutor":false},"id":4275,"body":"Ясно , спасибо ","topic_id":2611}],"communitable":{"parent_entity_name":null,"parent_entity_url":null,"entity_name":"Hello World","entity_url":null,"active":true}},{"id":2355,"title":"<?='Hello World'?>","plain_title":"<?='Hello World'?> ","creator":{"public_name":"","id":85201,"is_tutor":false},"comments":[{"creator":{"public_name":"Rakhim D.","id":42197,"is_tutor":false},"id":3864,"body":"Здравствуйте,\nвозможно, вы хотели написать этот код в практике, а не в разделе \"Вопросы и ответы\"?","topic_id":2355},{"creator":{"public_name":"","id":85201,"is_tutor":false},"id":3871,"body":"Разумеется, не освоился в интерфейсе, просто.","topic_id":2355},{"creator":{"public_name":"Rakhim D.","id":42197,"is_tutor":false},"id":3872,"body":"Бывает! \n\nБудут вопросы по интерфейсу, работе сайта и другим темам, не связанным напрямую с содержанием уроков — пишите в саппорт с помощью иконки в правом нижнем углу экрана. А по содержанию уроков пишите в \"Вопросы и ответы\".\n\nСпасибо!","topic_id":2355}],"communitable":{"parent_entity_name":null,"parent_entity_url":null,"entity_name":"Hello World","entity_url":null,"active":true}},{"id":845,"title":"Проактика не работает","plain_title":"Проактика не работает ","creator":{"public_name":"Alex Shaitan","id":56732,"is_tutor":false},"comments":[{"creator":{"public_name":"Kirill Mokevnin","id":6410,"is_tutor":false},"id":1473,"body":"Поправили. Чтобы она заработала у вас, нужно нажать ссылку \"сбросить прогресс\", которая находится в меню \"иконка с изображением шестеренки в практике.","topic_id":845},{"creator":{"public_name":"Rakhim D.","id":42197,"is_tutor":false},"id":1464,"body":"Здравствуйте,\nПожалуйста, уточните, что именно не работает? Появляется ли сообщение об ошибке или, может, вообще не загружается практика? Если что-то необычное, пожалуйста, покажите скриншот. ","topic_id":845},{"creator":{"public_name":"Alexandr Tabacari","id":17689,"is_tutor":false},"id":1637,"body":"очень правильный временной формат уроков, 10 минут. Это удобнее,практичнее. Например, 40 минут урока JAVA тяжело осилить за один присест. :) ","topic_id":845},{"creator":{"public_name":"Rakhim D.","id":42197,"is_tutor":false},"id":1465,"body":"А, понял, сейчас разберёмся, прошу прощения за неудобства. ","topic_id":845},{"creator":{"public_name":"Kirill Mokevnin","id":6410,"is_tutor":false},"id":1484,"body":"Проще всего создать файл через контекстное меню на файловой структуре). Ну так а вы покажите что за ошибку вам пишут, мы ж сами не догадаемся.","topic_id":845},{"creator":{"public_name":"Alex Shaitan","id":56732,"is_tutor":false},"id":1509,"body":"Все разобрался)) Там просто нужно кликнуть правой кнопкой мыши на app и выпадет меню где можно создать файл. ","topic_id":845},{"creator":{"public_name":"Alex Shaitan","id":56732,"is_tutor":false},"id":1507,"body":"А как его вызвать(контекстное меню)? В том что мне доступно я могу только переименовать или удалить файл. и если я переименовую файл Makefile то у меня вот такая ошибка \nhttps://www.evernote.com/shard/s543/sh/08a82f26-def2-46d1-b84a-b40f539c2b03/df69b72380f8275d7960be174178b53e\nhttps://www.evernote.com/shard/s543/sh/5fd5f973-9969-4fee-bac2-a773027799fd/07937162b4d580472125d7f040fd86a9","topic_id":845},{"creator":{"public_name":"Kirill Mokevnin","id":1,"is_tutor":false},"id":1513,"body":"именно)","topic_id":845},{"creator":{"public_name":"Alex Shaitan","id":56732,"is_tutor":false},"id":1483,"body":"создаю новый файл index.php c помощу vim \nоткриваеться редактор в терменале.\nПрописываю <?php echo \"Hello, world\"; ?> и нажимаю проверить задание. Вылетает ошибка. Как решить ето ?","topic_id":845},{"creator":{"public_name":"Kirill Mokevnin","id":6410,"is_tutor":false},"id":1476,"body":"Спасибо!) Кстати, курс по php5 у нас экспериментальный и нам было бы очень полезно получать фидбек по мере прохождения. Так что пишите как только будут какие то вопросы, сложности или замечания. Будем дорабатывать.","topic_id":845},{"creator":{"public_name":"Нургельды Дюсенов","id":59426,"is_tutor":false},"id":1869,"body":"В чем моя ошибка, не пойму..\nThere was 1 failure:\n\n1) HelloWorldTest::testOutput\nFailed asserting that two strings are equal.\n--- Expected\n+++ Actual\n@@ @@\n-'hello, world!'\n+'hello, world1'\n\n/usr/src/app/test.php:12\n\nFAILURES!\nTests: 1, Assertions: 1, Failures: 1.\nmake: *** [test] Error 1\nRun failed! Check and fix errors above!","topic_id":845},{"creator":{"public_name":"Alex Shaitan","id":56732,"is_tutor":false},"id":1475,"body":"Все заработало. Вы крутые!","topic_id":845}],"communitable":{"parent_entity_name":null,"parent_entity_url":null,"entity_name":"Hello World","entity_url":null,"active":true}},{"id":1506,"title":"Автору курса по поводу ошибки которая возникает с eval в интерактивном режиме.\n\nВы пытаетесь сделать так что бы интерпретатор выполнил код\n```\necho 1\n```\nошибка возникает потому что интерпретатор ожидает конца инструкции. Нужно добавить точку с запятой в конце инструкции\n```\neval('echo 1;');\n```","plain_title":"Автору курса по поводу ошибки которая возникает с eval в интерактивном режиме. Вы пытаетесь сделать так что бы интерпретатор выполнил код echo 1 ошибка возникает потому что интерпретатор ожидает конца инструкции. Нужно добавить точку с запятой в конце инструкции eval('echo 1;'); ","creator":{"public_name":"The Kinks","id":66619,"is_tutor":false},"comments":[{"creator":{"public_name":"Kirill Mokevnin","id":1,"is_tutor":false},"id":2611,"body":"Угу. Этот момент в очереди на перезапись.","topic_id":1506}],"communitable":{"parent_entity_name":null,"parent_entity_url":null,"entity_name":"Hello World","entity_url":null,"active":true}},{"id":1275,"title":"Н-да, захотел халявы, да не тут-то было. Изучать-то изучаем, но вот где, простите, это всё проверять\\запускать?","plain_title":"Н-да, захотел халявы, да не тут-то было. Изучать-то изучаем, но вот где, простите, это всё проверять\\запускать? ","creator":{"public_name":"","id":63990,"is_tutor":false},"comments":[{"creator":{"public_name":"","id":63990,"is_tutor":false},"id":2268,"body":"А зачем проходить школьную программу? Ваш вопрос имеет столько же смысла. Спасибо за объяснение, но хотелось бы более развёрнуто.","topic_id":1275},{"creator":{"public_name":"","id":64173,"is_tutor":false},"id":2267,"body":"Зачем изучать язык программирования, не зная для чего он предназначен?\nphp используется по большей части для разработки сайтов, интернет-магазинов, порталов и т.д.","topic_id":1275},{"creator":{"public_name":"","id":63990,"is_tutor":false},"id":2260,"body":"А где эти знания можно применить? Что вообще можно делать с помощью php? О теории, кажется, должен быть каждый первый урок...","topic_id":1275},{"creator":{"public_name":"Александр-C Вагин","id":6409,"is_tutor":false},"id":2259,"body":"После теории у нас идут практические задания - там можно все запускать и проверять.","topic_id":1275}],"communitable":{"parent_entity_name":null,"parent_entity_url":null,"entity_name":"Hello World","entity_url":null,"active":true}},{"id":3236,"title":"Чего-то я не понял...\nВыполнил задание про Hello, world.\nПолучилось вот что:\n<?php\n// BEGIN (write your solution here)\necho \"Helo, world\";\n//END\n?>\n\nНажал \"проверить\". Тут меня переключили на окно output с инфой:\nF 1 / 1 (100%)\nTime: 41 ms, Memory: 3.50Mb\nThere was 1 failure:\n1) App\\Test::testOutput\nFailed asserting that two strings are equal.\n--- Expected\n+++ Actual\n@@ @@\n-'hello, world!'\n+'hello, world'\n\n/usr/src/app/Test.php:14\n\nFAILURES!\nTests: 1, Assertions: 1, Failures: 1.\nmake: *** [test] Error 1\nmake: Leaving directory `/usr/src/app'\nRun failed! Check and fix errors above!\n\nЧто это все обозначает?\n","plain_title":"Чего-то я не понял... Выполнил задание про Hello, world. Получилось вот что: <?php // BEGIN (write your solution here) echo \"Helo, world\"; //END ?> Нажал \"проверить\". Тут меня переключили на окно output с инфой: F 1 / 1 (100%) Time: 41 ms, Memory: 3.50Mb There was 1 failure: 1) App\\Test::testOutput Failed asserting that two strings are equal. --- Expected +++ Actual @@ @@ -'hello, world!' +'hello, world' /usr/src/app/Test.php:14 FAILURES! Tests: 1, Assertions: 1, Failures: 1. make: *** [test] Error 1 make: Leaving directory `/usr/src/app' Run failed! Check and fix errors above! Что это все обозначает? ","creator":{"public_name":"Евгений Клинков","id":71333,"is_tutor":false},"comments":[{"creator":{"public_name":"Kirill Mokevnin","id":1,"is_tutor":false},"id":5278,"body":"Этот курс не является входным на нашем проекте и он требует уже начальных знаний. Правильный порядок курсов есть в нашей профессии https://ru.hexlet.io/professions/php. Идеально если вы будете двигаться по ней (и вступите в нее).","topic_id":3236}],"communitable":{"parent_entity_name":null,"parent_entity_url":null,"entity_name":"Hello World","entity_url":null,"active":true}},{"id":4386,"title":"Тесты ждут закрывающий тег ?> после конструкции // END\n","plain_title":"Тесты ждут закрывающий тег ?> после конструкции // END ","creator":{"public_name":"","id":109164,"is_tutor":false},"comments":[{"creator":{"public_name":"Kirill Mokevnin","id":1,"is_tutor":false},"id":7494,"body":"Закрывающий тег по стандарту кодирования на php использоваться не должен. http://www.php-fig.org/psr/psr-2/\n\n> The closing ?> tag MUST be omitted from files containing only PHP.","topic_id":4386}],"communitable":{"parent_entity_name":null,"parent_entity_url":null,"entity_name":"Hello World","entity_url":null,"active":true}},{"id":1989,"title":"<?= 'Hello world' ?>","plain_title":"<?= 'Hello world' ?> ","creator":{"public_name":"Денис Рыбин","id":77257,"is_tutor":false},"comments":[{"creator":{"public_name":"Rakhim D.","id":42197,"is_tutor":false},"id":3367,"body":"Здравствуйте,\nвозможно, вы перепутали место? Здесь — форум для общения, а для перехода к практическому заданию нужно нажать \"Я все понял!\" на странице с видео :)","topic_id":1989}],"communitable":{"parent_entity_name":null,"parent_entity_url":null,"entity_name":"Hello World","entity_url":null,"active":true}}],"lesson":{"exercise":{"id":185,"slug":"php_sicp_hello_world_exercise","name":null,"state":"active","kind":"exercise","language":"php","locale":"ru","has_web_view":false,"has_test_view":false,"reviewable":true,"readme":"## bin/index.php\n\nНапишите программу которая выводит на экран строчку `hello, world!`.\n","prepared_readme":"## bin/index.php\n\nНапишите программу которая выводит на экран строчку `hello, world!`.\n","has_solution":true,"entity_name":"Hello World"},"units":[{"id":583,"name":"theory","url":"/courses/php-sicp/lessons/hello_world/theory_unit"},{"id":585,"name":"quiz","url":"/courses/php-sicp/lessons/hello_world/quiz_unit"},{"id":584,"name":"exercise","url":"/courses/php-sicp/lessons/hello_world/exercise_unit"}],"links":[],"ordered_units":[{"id":583,"name":"theory","url":"/courses/php-sicp/lessons/hello_world/theory_unit"},{"id":585,"name":"quiz","url":"/courses/php-sicp/lessons/hello_world/quiz_unit"},{"id":584,"name":"exercise","url":"/courses/php-sicp/lessons/hello_world/exercise_unit"}],"id":355,"slug":"hello_world","state":"approved","name":"Hello World","course_order":10,"goal":"Пишем свою первую программу и обсуждаем способы ее запуска","self_study":null,"theory_video_provider":"vimeo","theory_video_uid":"130601188","theory":"## Полезные ссылки\n- [Основы синтаксиса: теги PHP](https://secure.php.net/manual/ru/language.basic-syntax.phptags.php)\n- [Стандарты кодирования на PHP] (https://www.php-fig.org/)\n\n## Дополнения\nСовременный стандарт кодирования на php подразумевает что в php файлах используется только открывающий тег `<?php` или даже `<?=`, но не используется закрывающий.\n"},"lessonMember":null,"courseMember":null,"course":{"start_lesson":{"exercise":null,"units":[{"id":1211,"name":"theory","url":"/courses/php-sicp/lessons/intro/theory_unit"}],"links":[],"ordered_units":[{"id":1211,"name":"theory","url":"/courses/php-sicp/lessons/intro/theory_unit"}],"id":624,"slug":"intro","state":"approved","name":"Введение","course_order":0,"goal":"Знакомимся с курсом, декларативным программированием и других парадигмах","self_study":null,"theory_video_provider":"vimeo","theory_video_uid":"156405268","theory":""},"id":75,"slug":"php-sicp","challenges_count":5,"name":"PHP: Построение абстракций","allow_indexing":true,"state":"approved","course_state":"finished","pricing_type":"paid","description":"На этом курсе вы познакомитесь с основами функционального программирования и понятием декларативного программирования. Вы узнаете, как использовать функции высшего порядка и работать с лямбда-функциями. Еще вы научитесь комбинировать функции, строить рекурсии с аккумулятором и оптимизировать хвостовую рекурсию.\nТакже вы изучите структуры данных и научитесь использовать функции высшего порядка: map, filter и свертка. Вы познакомитесь с концепцией разделения программы на функциональные блоки и научитесь работать с общей структурой данных.\nВ конце курса вы узнаете о присваивании и изменении состояния, а также о создании объектов. Вы рассмотрите преимущества и недостатки присваивания и сохранения состояния, чтобы лучше понимать, как использовать эти концепции в своих программах. Полученные знания помогут разрабатывать более эффективные и чистые программы.\nЭтот курс является адаптацией под php знаменитого курса «Структура и интерпретация компьютерных программ», который преподается на первом курсе МИТ (Massachusetts Institute of Technology) с 70-х годов.","kind":"additional","updated_at":"2026-01-20T11:55:16.759Z","language":"php","duration_cache":90240,"skills":["Применять функциональное и декларативное программирование","Создавать гибкие алгоритмы с помощью функции высшего порядка и лямбда-функции","Обрабатывать сложные задачи с помощью рекурсивных функций с аккумулятором","Улучшать читаемость, разделяя программу на модули и функциональные блоки","Обрабатывать коллекции данных с помощью структуры данных и функции высшего порядка"],"keywords":["абстрации","рекурсия","функции высшего 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#ffeaea;--mantine-color-red-1: #fed4d4;--mantine-color-red-2: #f4a7a8;--mantine-color-red-3: #ec7878;--mantine-color-red-4: #e55050;--mantine-color-red-5: #e03131;--mantine-color-red-6: #e02829;--mantine-color-red-7: #c71a1c;--mantine-color-red-8: #b21218;--mantine-color-red-9: #9c0411;--mantine-color-violet-0: #fce9ff;--mantine-color-violet-1: #f1cfff;--mantine-color-violet-2: #e09bff;--mantine-color-violet-3: #d16fff;--mantine-color-violet-4: #be37fe;--mantine-color-violet-5: #b51afe;--mantine-color-violet-6: #b009ff;--mantine-color-violet-7: #9b00e4;--mantine-color-violet-8: #8a00cc;--mantine-color-violet-9: #7800b3;--mantine-color-indigo-0: #edecff;--mantine-color-indigo-1: #d6d5fe;--mantine-color-indigo-2: #aaa9f4;--mantine-color-indigo-3: #7b79eb;--mantine-color-indigo-4: #5451e4;--mantine-color-indigo-5: #3b37e0;--mantine-color-indigo-6: #2d2adf;--mantine-color-indigo-7: #1f1ec7;--mantine-color-indigo-8: #1819b2;--mantine-color-indigo-9: #0c149e;--mantine-color-cyan-0: #dffdff;--mantine-color-cyan-1: #caf5ff;--mantine-color-cyan-2: #99e8ff;--mantine-color-cyan-3: #64daff;--mantine-color-cyan-4: #3ccffe;--mantine-color-cyan-5: #24c8fe;--mantine-color-cyan-6: #00c2ff;--mantine-color-cyan-7: #00ade4;--mantine-color-cyan-8: #009acd;--mantine-color-cyan-9: #0085b5;--mantine-color-green-0: #e9fdec;--mantine-color-green-1: #d7f6dc;--mantine-color-green-2: #b0eab9;--mantine-color-green-3: #86df94;--mantine-color-green-4: #62d574;--mantine-color-green-5: #4ccf5f;--mantine-color-green-6: #3fcc54;--mantine-color-green-7: #2fb344;--mantine-color-green-8: #25a03b;--mantine-color-green-9: #138a2e;--mantine-color-yellow-0: #fff7e2;--mantine-color-yellow-1: #ffeecd;--mantine-color-yellow-2: #ffdc9c;--mantine-color-yellow-3: #ffc966;--mantine-color-yellow-4: #feb93a;--mantine-color-yellow-5: #feae1e;--mantine-color-yellow-6: #ffa90f;--mantine-color-yellow-8: #ca8200;--mantine-color-yellow-9: #af7000;--mantine-h1-font-size: clamp(28.0000px, calc(23.6364px + 1.3636vw), 40.0000px);--mantine-h1-font-weight: normal;--mantine-h2-font-size: clamp(24.0000px, calc(21.0909px + 0.9091vw), 32.0000px);--mantine-h2-font-weight: normal;--mantine-h3-font-size: clamp(20.0000px, calc(17.0909px + 0.9091vw), 28.0000px);--mantine-h3-font-weight: normal;--mantine-h4-font-size: clamp(16.0000px, calc(13.0909px + 0.9091vw), 24.0000px);--mantine-h4-font-weight: normal;--mantine-h5-font-size: clamp(16.0000px, calc(14.5455px + 0.4545vw), 20.0000px);--mantine-h5-font-weight: normal;--mantine-h6-font-size: 1rem;--mantine-h6-font-weight: normal;}
:root[data-mantine-color-scheme="dark"], :host([data-mantine-color-scheme="dark"]){--mantine-color-anchor: var(--mantine-color-text);--mantine-color-dimmed: #495057;--mantine-color-dark-filled: var(--mantine-color-dark-5);--mantine-color-dark-filled-hover: var(--mantine-color-dark-6);--mantine-color-dark-light: rgba(105, 105, 105, 0.15);--mantine-color-dark-light-hover: rgba(105, 105, 105, 0.2);--mantine-color-dark-light-color: var(--mantine-color-dark-0);--mantine-color-dark-outline: var(--mantine-color-dark-1);--mantine-color-dark-outline-hover: rgba(184, 184, 184, 0.05);--mantine-color-gray-filled: var(--mantine-color-gray-5);--mantine-color-gray-filled-hover: var(--mantine-color-gray-6);--mantine-color-gray-light: rgba(222, 226, 230, 0.15);--mantine-color-gray-light-hover: rgba(222, 226, 230, 0.2);--mantine-color-gray-light-color: var(--mantine-color-gray-0);--mantine-color-gray-outline: var(--mantine-color-gray-1);--mantine-color-gray-outline-hover: rgba(241, 243, 245, 0.05);--mantine-color-red-filled: var(--mantine-color-red-5);--mantine-color-red-filled-hover: var(--mantine-color-red-6);--mantine-color-red-light: rgba(236, 120, 120, 0.15);--mantine-color-red-light-hover: rgba(236, 120, 120, 0.2);--mantine-color-red-light-color: var(--mantine-color-red-0);--mantine-color-red-outline: var(--mantine-color-red-1);--mantine-color-red-outline-hover: rgba(254, 212, 212, 0.05);--mantine-color-pink-filled: var(--mantine-color-pink-5);--mantine-color-pink-filled-hover: var(--mantine-color-pink-6);--mantine-color-pink-light: rgba(250, 162, 193, 0.15);--mantine-color-pink-light-hover: rgba(250, 162, 193, 0.2);--mantine-color-pink-light-color: var(--mantine-color-pink-0);--mantine-color-pink-outline: var(--mantine-color-pink-1);--mantine-color-pink-outline-hover: rgba(255, 222, 235, 0.05);--mantine-color-grape-filled: var(--mantine-color-grape-5);--mantine-color-grape-filled-hover: var(--mantine-color-grape-6);--mantine-color-grape-light: rgba(229, 153, 247, 0.15);--mantine-color-grape-light-hover: rgba(229, 153, 247, 0.2);--mantine-color-grape-light-color: var(--mantine-color-grape-0);--mantine-color-grape-outline: var(--mantine-color-grape-1);--mantine-color-grape-outline-hover: rgba(243, 217, 250, 0.05);--mantine-color-violet-filled: var(--mantine-color-violet-5);--mantine-color-violet-filled-hover: var(--mantine-color-violet-6);--mantine-color-violet-light: rgba(209, 111, 255, 0.15);--mantine-color-violet-light-hover: rgba(209, 111, 255, 0.2);--mantine-color-violet-light-color: var(--mantine-color-violet-0);--mantine-color-violet-outline: var(--mantine-color-violet-1);--mantine-color-violet-outline-hover: rgba(241, 207, 255, 0.05);--mantine-color-indigo-filled: var(--mantine-color-indigo-5);--mantine-color-indigo-filled-hover: var(--mantine-color-indigo-6);--mantine-color-indigo-light: rgba(123, 121, 235, 0.15);--mantine-color-indigo-light-hover: rgba(123, 121, 235, 0.2);--mantine-color-indigo-light-color: var(--mantine-color-indigo-0);--mantine-color-indigo-outline: var(--mantine-color-indigo-1);--mantine-color-indigo-outline-hover: rgba(214, 213, 254, 0.05);--mantine-color-blue-filled: var(--mantine-color-blue-5);--mantine-color-blue-filled-hover: var(--mantine-color-blue-6);--mantine-color-blue-light: rgba(116, 192, 252, 0.15);--mantine-color-blue-light-hover: rgba(116, 192, 252, 0.2);--mantine-color-blue-light-color: var(--mantine-color-blue-0);--mantine-color-blue-outline: var(--mantine-color-blue-1);--mantine-color-blue-outline-hover: rgba(208, 235, 255, 0.05);--mantine-color-cyan-filled: var(--mantine-color-cyan-5);--mantine-color-cyan-filled-hover: var(--mantine-color-cyan-6);--mantine-color-cyan-light: rgba(100, 218, 255, 0.15);--mantine-color-cyan-light-hover: rgba(100, 218, 255, 0.2);--mantine-color-cyan-light-color: var(--mantine-color-cyan-0);--mantine-color-cyan-outline: var(--mantine-color-cyan-1);--mantine-color-cyan-outline-hover: rgba(202, 245, 255, 0.05);--mantine-color-teal-filled: var(--mantine-color-teal-5);--mantine-color-teal-filled-hover: var(--mantine-color-teal-6);--mantine-color-teal-light: rgba(99, 230, 190, 0.15);--mantine-color-teal-light-hover: rgba(99, 230, 190, 0.2);--mantine-color-teal-light-color: var(--mantine-color-teal-0);--mantine-color-teal-outline: var(--mantine-color-teal-1);--mantine-color-teal-outline-hover: rgba(195, 250, 232, 0.05);--mantine-color-green-filled: var(--mantine-color-green-5);--mantine-color-green-filled-hover: var(--mantine-color-green-6);--mantine-color-green-light: rgba(134, 223, 148, 0.15);--mantine-color-green-light-hover: rgba(134, 223, 148, 0.2);--mantine-color-green-light-color: var(--mantine-color-green-0);--mantine-color-green-outline: var(--mantine-color-green-1);--mantine-color-green-outline-hover: rgba(215, 246, 220, 0.05);--mantine-color-lime-filled: var(--mantine-color-lime-5);--mantine-color-lime-filled-hover: var(--mantine-color-lime-6);--mantine-color-lime-light: rgba(192, 235, 117, 0.15);--mantine-color-lime-light-hover: rgba(192, 235, 117, 0.2);--mantine-color-lime-light-color: var(--mantine-color-lime-0);--mantine-color-lime-outline: var(--mantine-color-lime-1);--mantine-color-lime-outline-hover: rgba(233, 250, 200, 0.05);--mantine-color-yellow-filled: var(--mantine-color-yellow-5);--mantine-color-yellow-filled-hover: var(--mantine-color-yellow-6);--mantine-color-yellow-light: rgba(255, 201, 102, 0.15);--mantine-color-yellow-light-hover: rgba(255, 201, 102, 0.2);--mantine-color-yellow-light-color: var(--mantine-color-yellow-0);--mantine-color-yellow-outline: var(--mantine-color-yellow-1);--mantine-color-yellow-outline-hover: rgba(255, 238, 205, 0.05);--mantine-color-orange-filled: var(--mantine-color-orange-5);--mantine-color-orange-filled-hover: var(--mantine-color-orange-6);--mantine-color-orange-light: rgba(255, 192, 120, 0.15);--mantine-color-orange-light-hover: rgba(255, 192, 120, 0.2);--mantine-color-orange-light-color: var(--mantine-color-orange-0);--mantine-color-orange-outline: var(--mantine-color-orange-1);--mantine-color-orange-outline-hover: rgba(255, 232, 204, 0.05);--app-cta-gradient: linear-gradient(90deg, var(--mantine-color-blue-9) 0%, var(--mantine-color-cyan-7) 100%);--app-color-surface: #2e2e2e;}
:root[data-mantine-color-scheme="light"], :host([data-mantine-color-scheme="light"]){--mantine-color-anchor: var(--mantine-color-text);--mantine-color-dimmed: #495057;--mantine-color-red-light: rgba(224, 40, 41, 0.1);--mantine-color-red-light-hover: rgba(224, 40, 41, 0.12);--mantine-color-red-outline-hover: rgba(224, 40, 41, 0.05);--mantine-color-violet-light: rgba(176, 9, 255, 0.1);--mantine-color-violet-light-hover: rgba(176, 9, 255, 0.12);--mantine-color-violet-outline-hover: rgba(176, 9, 255, 0.05);--mantine-color-indigo-light: rgba(45, 42, 223, 0.1);--mantine-color-indigo-light-hover: rgba(45, 42, 223, 0.12);--mantine-color-indigo-outline-hover: rgba(45, 42, 223, 0.05);--mantine-color-cyan-light: rgba(0, 194, 255, 0.1);--mantine-color-cyan-light-hover: rgba(0, 194, 255, 0.12);--mantine-color-cyan-outline-hover: rgba(0, 194, 255, 0.05);--mantine-color-green-light: rgba(63, 204, 84, 0.1);--mantine-color-green-light-hover: rgba(63, 204, 84, 0.12);--mantine-color-green-outline-hover: rgba(63, 204, 84, 0.05);--mantine-color-yellow-light: rgba(255, 169, 15, 0.1);--mantine-color-yellow-light-hover: rgba(255, 169, 15, 0.12);--mantine-color-yellow-outline-hover: rgba(255, 169, 15, 0.05);--app-color-surface: #f1f3f5;--app-cta-gradient: linear-gradient(90deg, var(--mantine-color-blue-filled) 0%, var(--mantine-color-cyan-5) 100%);}</style><style data-mantine-styles="classes">@media (max-width: 35.99375em) {.mantine-visible-from-xs {display: none !important;}}@media (min-width: 36em) {.mantine-hidden-from-xs {display: none !important;}}@media (max-width: 47.99375em) {.mantine-visible-from-sm {display: none !important;}}@media (min-width: 48em) {.mantine-hidden-from-sm {display: none !important;}}@media (max-width: 61.99375em) {.mantine-visible-from-md {display: none !important;}}@media (min-width: 62em) {.mantine-hidden-from-md {display: none !important;}}@media (max-width: 74.99375em) {.mantine-visible-from-lg {display: none !important;}}@media (min-width: 75em) {.mantine-hidden-from-lg {display: none !important;}}@media (max-width: 87.99375em) {.mantine-visible-from-xl {display: none !important;}}@media (min-width: 88em) {.mantine-hidden-from-xl {display: none !important;}}</style><div style="position:absolute;top:0rem" class=""></div><div style="max-width:var(--container-size-xl);height:100%;min-height:0rem" class=""><style data-mantine-styles="inline">.__m__-_R_5ub_{--grid-gutter:0rem;}</style><div style="height:100%;min-height:0rem" class="m_410352e9 mantine-Grid-root __m__-_R_5ub_"><div class="m_dee7bd2f mantine-Grid-inner" style="height:100%"><style data-mantine-styles="inline">.__m__-_R_rdub_{--col-flex-grow:auto;--col-flex-basis:91.66666666666667%;--col-max-width:91.66666666666667%;}@media(min-width: 48em){.__m__-_R_rdub_{--col-flex-grow:auto;--col-flex-basis:83.33333333333334%;--col-max-width:83.33333333333334%;}}</style><div style="min-width:0rem;height:100%;min-height:0rem;display:flex" class="m_96bdd299 mantine-Grid-col __m__-_R_rdub_"><style data-mantine-styles="inline">.__m__-_R_6qrdub_{margin-top:0rem;padding-inline:var(--mantine-spacing-xs);width:100%;}@media(min-width: 48em){.__m__-_R_6qrdub_{margin-top:var(--mantine-spacing-xl);width:80%;}}@media(min-width: 62em){.__m__-_R_6qrdub_{padding-inline:var(--mantine-spacing-xl);}}</style><div style="margin-inline:auto;max-width:var(--mantine-breakpoint-xl)" class="__m__-_R_6qrdub_"><div style="color:var(--mantine-color-dimmed)" class="m_4451eb3a mantine-Center-root" data-inline="true"><div style="--ti-size:var(--ti-size-xs);--ti-bg:transparent;--ti-color:var(--mantine-color-indigo-light-color);--ti-bd:calc(0.0625rem * var(--mantine-scale)) solid transparent;margin-inline-end:calc(0.125rem * var(--mantine-scale));color:inherit" class="m_7341320d mantine-ThemeIcon-root" data-variant="transparent" data-size="xs"><svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="tabler-icon tabler-icon-lock "><path d="M5 13a2 2 0 0 1 2 -2h10a2 2 0 0 1 2 2v6a2 2 0 0 1 -2 2h-10a2 2 0 0 1 -2 -2v-6"></path><path d="M11 16a1 1 0 1 0 2 0a1 1 0 0 0 -2 0"></path><path d="M8 11v-4a4 4 0 1 1 8 0v4"></path></svg></div><p style="font-size:var(--mantine-font-size-sm)" class="mantine-focus-auto m_b6d8b162 mantine-Text-root">PHP: Построение абстракций</p></div><h1 style="--title-fw:var(--mantine-h1-font-weight);--title-lh:var(--mantine-h1-line-height);--title-fz:var(--mantine-h1-font-size);margin-bottom:var(--mantine-spacing-xl)" class="m_8a5d1357 mantine-Title-root" data-order="1">Теория: Hello World</h1><script type="application/ld+json">{"@context":"https://schema.org","@type":"LearningResource","name":"Hello World","inLanguage":"ru","isPartOf":{"@type":"LearningResource","name":"PHP: Построение абстракций"},"isAccessibleForFree":"False","hasPart":{"@type":"WebPageElement","isAccessibleForFree":"False","cssSelector":".paywalled"}}</script><div class=""><div style="--alert-color:var(--mantine-color-indigo-light-color);margin-bottom:var(--mantine-spacing-lg);font-size:var(--mantine-font-size-lg)" class="m_66836ed3 mantine-Alert-root" id="mantine-_R_remqrdub_" role="alert" aria-describedby="mantine-_R_remqrdub_-body" aria-labelledby="mantine-_R_remqrdub_-title"><div class="m_a5d60502 mantine-Alert-wrapper"><div class="m_667f2a6a mantine-Alert-icon"><svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="tabler-icon tabler-icon-rocket "><path d="M4 13a8 8 0 0 1 7 7a6 6 0 0 0 3 -5a9 9 0 0 0 6 -8a3 3 0 0 0 -3 -3a9 9 0 0 0 -8 6a6 6 0 0 0 -5 3"></path><path d="M7 14a6 6 0 0 0 -3 6a6 6 0 0 0 6 -3"></path><path d="M14 9a1 1 0 1 0 2 0a1 1 0 1 0 -2 0"></path></svg></div><div class="m_667c2793 mantine-Alert-body"><div class="m_6a03f287 mantine-Alert-title"><span id="mantine-_R_remqrdub_-title" class="m_698f4f23 mantine-Alert-label">Полный доступ к материалам</span></div><div id="mantine-_R_remqrdub_-body" class="m_7fa78076 mantine-Alert-message"><div style="--group-gap:var(--mantine-spacing-md);--group-align:center;--group-justify:space-between;--group-wrap:wrap" class="m_4081bf90 mantine-Group-root"><p class="mantine-focus-auto m_b6d8b162 mantine-Text-root">Зарегистрируйтесь и получите доступ к этому и десяткам других курсов</p><a style="--button-height:var(--button-height-xs);--button-padding-x:var(--button-padding-x-xs);--button-fz:var(--mantine-font-size-xs);--button-bg:linear-gradient(45deg, var(--mantine-color-blue-filled) 0%, var(--mantine-color-cyan-filled) 100%);--button-hover:linear-gradient(45deg, var(--mantine-color-blue-filled) 0%, var(--mantine-color-cyan-filled) 100%);--button-color:var(--mantine-color-white);--button-bd:none" class="mantine-focus-auto mantine-active m_77c9d27d mantine-Button-root m_87cf2631 mantine-UnstyledButton-root" data-variant="gradient" data-size="xs" href="/u/new"><span class="m_80f1301b mantine-Button-inner"><span class="m_811560b9 mantine-Button-label">Зарегистрироваться</span></span></a></div></div></div></div></div><div class="paywalled m_d08caa0 mantine-Typography-root"><h2 id="heading-2-1">Полезные ссылки</h2>
<ul>
<li><a style="text-decoration:underline" class="mantine-focus-auto m_849cf0da m_b6d8b162 mantine-Text-root mantine-Anchor-root" data-underline="hover" href="https://secure.php.net/manual/ru/language.basic-syntax.phptags.php" rel="noopener noreferrer" target="_blank">Основы синтаксиса: теги PHP</a></li>
<li>[Стандарты кодирования на PHP] (<a style="text-decoration:underline" class="mantine-focus-auto m_849cf0da m_b6d8b162 mantine-Text-root mantine-Anchor-root" data-underline="hover" href="https://www.php-fig.org/" rel="noopener noreferrer" target="_blank">https://www.php-fig.org/</a>)</li>
</ul>
<h2 id="heading-2-2">Дополнения</h2>
<p>Современный стандарт кодирования на php подразумевает что в php файлах используется только открывающий тег <code style="margin-bottom:var(--mantine-spacing-lg)" class="m_dfe9c588 mantine-InlineCodeHighlight-inlineCodeHighlight m_e597c321 mantine-CodeHighlight-codeHighlight m_dfe9c588 mantine-InlineCodeHighlight-inlineCodeHighlight"><?php</code> или даже <code style="margin-bottom:var(--mantine-spacing-lg)" class="m_dfe9c588 mantine-InlineCodeHighlight-inlineCodeHighlight m_e597c321 mantine-CodeHighlight-codeHighlight m_dfe9c588 mantine-InlineCodeHighlight-inlineCodeHighlight"><?=</code>, но не используется закрывающий.</p></div><div style="margin-block:var(--mantine-spacing-xl)" class=""><h2 style="--title-fw:var(--mantine-h2-font-weight);--title-lh:var(--mantine-h2-line-height);--title-fz:var(--mantine-h2-font-size);margin-bottom:var(--mantine-spacing-md)" class="m_8a5d1357 mantine-Title-root" data-order="2">Рекомендуемые программы</h2><style 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