Methods of data GET, POST, HEAD, URL, MIME types

Description of the lesson: ? 8 data bearer in HTTP 1.1 ? Data from the form. ? Attributes form. Attribute that specifies the type of content transmitted from the mold and then a header will be sent to the browser on the server. ? enctype = "text / html", the title of the browser: Content-Type: application / x-www-form-urlencoded and Content-Type: multipart / form-data ? Send data from the form, encoding the% (percent) and hexadecimal, coding gaps. ? Processing lines of JavaScript and PHP functions url encoding. ? Encoding when sending data from the form GET or POST. Russian character encoding and automatic conversion browser and the server. ? arrays $ _GET or $ _POST, and also $ _REQUEST. Line QUERY_STING. ? URL encoding browser form data and decoding on the server side. ? If the form is emulated on JavaScript. ? URL Encoding: Cyrillic characters encoded in Unicode (UTF-8) and then the hex. ? Coding invalid characters in the URL! "#% & ´*,:; <=>? [] ^` {|} ? Letters Alphabets undergo any transformation of the URL. GET method of data transmission Description of the lesson: ? An example of an HTML form with method GET. ? As a GET URL requests sent from the browser address bar or a URL of html links. ? Example URL string. ? case-sensitive recording $ _GET. ? Comparison of methods GET and POST. ? How and where GET protocol transmits data. ? Security! Transfer methods GET or HEAD of personal data leaks or critical data: login, password, credit card numbers, phone numbers, addresses, etc. ? Caching data in the history of visits to the browser, server, and proxy server. ? Allow the user to save the page or send to someone else for what your site or page. ? $ _GET array ? Titles browser by sending GET. ? Example: Headlines GET request from the browser. ? Example: GET response headers from the server. ? Automatic request for a search on Google or Yandex method GET. POST method of data transmission Description of the lesson: ? An example of an HTML form with method POST: ? POST method, and unlike the methods GET and HEAD. ? The types of data and content transmitted by POST. ? Automatically send data from the form method POST. ? Line QUERY_STRING. ? The array $ _POST. ? Titles POST, Content-Type and Content-Length ? Interception of data sent by POST. ? Examples of request headers from the browser: simple data transmission method POST. ? Examples of the response headers from the browser. The method of data transmission HEAD Description of the lesson: ? HEAD method, and unlike the method GET. ? Response by HEAD. ? browser and proxy caching. ? PHP function get_headers () and stream_context_set_default ().