{"draftJsState":{"blocks":[{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":" Команды PHP echo и print ","type":"header-three","key":"c3ptd"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[{"length":4,"offset":8,"style":"ITALIC"},{"length":6,"offset":15,"style":"ITALIC"},{"length":5,"offset":133,"style":"ITALIC"}],"text":"Команды echo и print почти ничем не отличаются. Они обе используются для вывода данных на экран в браузере. Разница лишь в том, что echo не возвращает значение. Что это значит? Нечто просто выводится на экран и далее никак не может использоваться.","type":"unstyled","key":"dfid8"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Пример:","type":"unstyled","key":"4e5si"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":" PHP is Fun!\";\necho \"Hello world!
\";\necho \"I'm about to learn PHP!
\";\necho \"This \", \"string \", \"was \", \"made \", \"with multiple parameters.\";\n?> ","type":"blockquote","key":"dsri"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[{"length":4,"offset":21,"style":"ITALIC"},{"length":7,"offset":145,"style":"ITALIC"}],"text":"Как видно из примера echo может быть использовано для вывода множественных параметров ( например строк ). Может также записываться со скобками : echo() .","type":"unstyled","key":"deas4"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Пример использования команды print :","type":"unstyled","key":"dq5mu"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":" PHP is Fun!\";\nprint \"Hello world!
\";\nprint \"I'm about to learn PHP!\";\n?> ","type":"blockquote","key":"90lnd"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[{"length":5,"offset":36,"style":"ITALIC"},{"length":7,"offset":76,"style":"ITALIC"}],"text":"Как можно видеть разница небольшая. Print также можно записать со скобками: print() .","type":"unstyled","key":"f7p4g"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[{"length":4,"offset":19,"style":"ITALIC"}],"text":"Можно отметить что echo работает немного быстрее, вот и все. :)))","type":"unstyled","key":"7f4a2"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Типы данных в PHP","type":"header-two","key":"cjm8l"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Мы уже говорили о переменных в PHP. Переменные могут хранить данные разного типа. В PHP это могут быть данные следующих типов:","type":"unstyled","key":"91acb"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":" ","type":"unstyled","key":"en68g"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"String","type":"unordered-list-item","key":"7kk14"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Integer","type":"unordered-list-item","key":"726hh"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Float (floating point numbers - also called double)","type":"unordered-list-item","key":"89q0c"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Boolean","type":"unordered-list-item","key":"5r3gt"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Array","type":"unordered-list-item","key":"49hcq"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Object","type":"unordered-list-item","key":"6qbrq"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"NULL","type":"unordered-list-item","key":"afj1k"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Resource","type":"unordered-list-item","key":"ctlc4"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"***","type":"unstyled","key":"dkmeh"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"String это строка. Любой набор символов. :))) Пример записи :","type":"unstyled","key":"c885b"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":" \"; \necho $y;\n?> ","type":"blockquote","key":"a3ahs"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":" ","type":"unstyled","key":"eq8br"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"***","type":"unstyled","key":"718db"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Integer это целое, не десятичное число в промежутке от -2,147,483,648 до 2,147,483,647. ","type":"unstyled","key":"buimq"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Для целых чисел существуют правила:","type":"unstyled","key":"1sj1h"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":" ","type":"unstyled","key":"4sse3"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Integer должно иметь хотя бы одно число :)))","type":"blockquote","key":"489bb"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Integer не должно иметь точки, как разделительный знак","type":"blockquote","key":"65iq0"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Integer может быть положительным или отрицательным","type":"blockquote","key":"1k9me"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Integers может быть выражено в трех форматах: decimal (10-based), hexadecimal (16-based - префикс 0x) или octal (8-based - префикс 0)","type":"blockquote","key":"93ard"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Простой пример:","type":"unstyled","key":"b92h2"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":" ","type":"blockquote","key":"8qo4u"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"","type":"unstyled","key":"1oqlt"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"***","type":"unstyled","key":"66jbi"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":" Float (floating point number) десятичное число с дробной частью или число в экспоненциальной форме.","type":"unstyled","key":"9305r"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Например :","type":"unstyled","key":"ev04e"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":" ","type":"blockquote","key":"e1vl0"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"","type":"unstyled","key":"d7ft6"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"***","type":"unstyled","key":"calo5"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Object это тип данных который хранит данные ( простите за каламбур :)) ) и информацию как обработать эти данные.","type":"unstyled","key":"8iaof"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Этот тип данных должен быть объявлен явным образом.","type":"unstyled","key":"87drn"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":" Вначале мы декларируем class объекта. Для этого используется слово class. Class это структура которая содержит свойства и методы: ","type":"unstyled","key":"1npak"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":" model = \"VW\";\n }\n}\n","type":"blockquote","key":"5p0pa"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"// create an object\n$herbie = new Car();\n","type":"blockquote","key":"dtaq5"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"// show object properties\necho $herbie->model;\n?> ","type":"blockquote","key":"7ra5l"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"","type":"unstyled","key":"35t61"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"***","type":"unstyled","key":"d71t0"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":" Null это специальный тип данных, который может иметь только одно значение: NULL. Это НИЧТО. Ничтожество :)))","type":"unstyled","key":"41j5t"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Пример :","type":"unstyled","key":"fb5om"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":" ","type":"blockquote","key":"4vike"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"","type":"unstyled","key":"bsd2h"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"***","type":"unstyled","key":"ccb8l"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"PHP Resourse это специальный тип данных, который в принципе и данными то не является :))) Это может быть ссылка на что-то, другой ресурс, обращение к базе данных и так далее. Это тема для сильно продвинутых, даже для меня это сложновато :))) Проехали :)))","type":"unstyled","key":"t638"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"*********","type":"unstyled","key":"93tic"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"","type":"unstyled","key":"b1mj8"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Ну вот, я вам чуток запутал мозг... Распутывайте :)))","type":"unstyled","key":"2h9jd"},{"data":{},"depth":0,"entityRanges":[{"key":0,"length":30,"offset":122}],"inlineStyleRanges":[],"text":"Извините редко пишу, занят... Помогите выжить. Заходите на хороший букс. Платит всегда, моментально, работы всегда много. Сюда, работаем и зарабатываем!","type":"unstyled","key":"82ask"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Всем спасибо за внимание! До новых встреч!","type":"unstyled","key":"7pu6e"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"","type":"marker","key":"cSQ33JkQIHqNTh3DY5kq"}],"entityMap":{"0":{"data":{"url":"https://wmrfast.com/?r=334925"},"mutability":"MUTABLE","type":"LINK"}}},"mentions":[]}