SESSION
SESSION
(lat., from sedere - to sit). The time during which the society meets for any meetings; a period during which a number of meetings take place.
Dictionary of foreign words included in the Russian language. - Chudinov A.N., 1910 .
SESSION
lat. sessio, from sedere, to sit; fr. session. Meeting time of the meeting.
Explanation of 25,000 foreign words that have come into use in the Russian language, with the meaning of their roots. - Mikhelson A.D., 1865 .
SESSION
meeting time of a meeting.
Dictionary of foreign words included in the Russian language. - Pavlenkov F., 1907 .
SESSION
the length of time during which Ph.D. an institution for discussing and resolving a number of cases or issues, for example: a session of the district court, a session of zemstvo assemblies, etc.
A complete dictionary of foreign words that have come into use in the Russian language. - Popov M., 1907 .
Session
(lat. session)
1) the period of meetings, the work of representative bodies, courts, scientific institutions, societies, e.g. With. Supreme Soviet of the USSR, visiting with. court;
2) the period of examinations in higher and secondary special. educational institutions.
New dictionary foreign words.- by EdwART,, 2009 .
Session
sessions, w. [ latin. sessio - session] (official). 1. The period of meetings, the work of representative bodies, courts, scientific institutions, societies. Session of the Academy of Sciences. Exit session. court. 2. The period of examinations in higher and secondary special. educational institutions.
Big Dictionary foreign words.- Publishing house "IDDK", 2007 .
Session (ce) And, and. ( lat. sessio sitting, sitting).
1.
Classes resumed at a certain time, meetings of some kind. institutions. WITH. parliament.
2.
The period of passing exams in universities, technical schools. Exam with.
Sessional- relating to session 1, 2, sessions.
Dictionary foreign words L. P. Krysina.- M: Russian language, 1998 .
Synonyms:
See what "SESSION" is in other dictionaries:
- (lat. sessio sitting, sitting): Parliamentary session Examination session Court session Musical session is a meeting of musicians to play together. As a rule, in order to exchange musical experience, for rehearsals of musical material, ... ... Wikipedia
SESSION, sessions, female. (lat. sessio meeting) (official). “Periodically, at the appointed time, resuming classes, meetings of some institution, Sessions of the Supreme Soviet of the USSR are convened by the Presidium of the Supreme Soviet of the USSR twice a year.” ... ... Explanatory Dictionary of Ushakov
Conference; period, photo session Dictionary of Russian synonyms. session n., number of synonyms: 10 time to collect stones (1) ... Synonym dictionary
- (from lat. sessio meeting) 1) an organized form of work of a representative body, court, scientific or public organization.2) In universities and secondary specialized educational institutions, the period of examinations after the completion of a certain stage of study ... Big Encyclopedic Dictionary
SESSION, and, wives. 1. Periodically recurring working meetings of what n. institution, organization, body. C. Parliament. C. Scientific Society. At the session. 2. The period of passing exams in universities, technical schools, special schools. Exam s. In… … Explanatory dictionary of Ozhegov
female, lat. meeting, assembly, or term of a whole series of them. Dahl's Explanatory Dictionary. IN AND. Dal. 1863 1866 ... Dahl's Explanatory Dictionary
- (from lat. sessio meeting) an organized form of work of a representative body, court, scientific or public organization. Political Science: Dictionary Reference. comp. Prof. floor of sciences Sanzharevsky I.I.. 2010 ... Political science. Dictionary.
session- session, session. The pronunciation [session], [session] is obsolete ... Dictionary of pronunciation and stress difficulties in modern Russian
session- Sergey Evgenievich Semenov, Semyonova Irina Yakovlevna MHL student, folklore ... Dictionary of abbreviations and abbreviations
Session- (from Latin sessio meeting; English session) a form of organizing the activities of some collegiate bodies that periodically meet in in full force. S. usually represents a relatively short period of joint meetings of all or ... ... Encyclopedia of Law
Books
- strategic session. How to generate breakthrough ideas and out-of-the-box problem solving, Chris Ertel, Lisa Kay Solomon. What the book is about Any company faces strategic challenges, such as increased competition in the market, a decrease in demand for the goods and services offered, operating in an unstable ...
- Session of the Academy of Sciences of the USSR on the peaceful use of atomic energy July 1-5, 1955. Plenary session,. The proposed publication includes verbatim records of the plenary session of the Session of the USSR Academy of Sciences on the peaceful use of atomic energy, held July 1-5, 1955 ...
Session (from Latin - sessio - meeting, English - session) is a period of time covering the user's work on the Internet from the moment the first link is opened to the last one. Calculated as the difference in time between the initial and final requests. However, the last page may be viewed by the user at different times, which therefore makes it more difficult to measure the time between two requests.
How the session is related to the HTTP protocol and COOKIES
What is a session can be explained starting from the HTTP protocol. By itself, this protocol does not provide a way to persist state between two operations. That is, to put it simply, opening one page and then going from it to another, HTTP will not be able to establish that both requests belong to the same user. And this is where a special tracking method comes to the rescue - session management (our sessions).
Hence, answering the question of what a session is, we can say that it is an auxiliary logical object that facilitates the transfer of data between successive HTTP requests from one user.
Cookies, like the session, store information about the user as he moves through different pages and improve the operation of the protocol. But unlike the second, where the data is stored in temporary files on the server, they are stored on the user's computer in the form of small fragments.
What are sessions for?
The use of sessions becomes indispensable when working with sites such as forums, bulletin boards and Internet shops, because in this case you need to save user data for several pages.
Session stages
The whole session can be divided into three stages:
- session opening (when the user starts working with a certain site),
- accounting for session variables (when navigating to different pages),
- end of session.
Due to the fact that session data is stored on a third-party server, it is best not to store large amounts of information in them, but to use cookies.
Student years for almost every person are a time with which a huge number of positive emotions are associated. But there is, perhaps, the only thing that overshadows these pleasant memories. This thing is a session. Such a simple word, but how much stress and sleepless nights are associated with it, read from cover to cover of textbooks and hidden in the most intricate places of cheat sheets! Let's take a closer look at what a session is and what to prepare for a student who is just about to have it.
That dreaded word "session"
In general, the session is nothing more than several exams in those disciplines that were passed by the student during the semester. Moreover, if there were, for example, seven subjects, it is not at all a fact that there will be the same number of exams. As a rule, some of them will need to be credited. This procedure is often much easier than the session itself. Often offsets are set automatically. However, there are times when it is very difficult to achieve such a mark from a certain teacher. And this is necessary, because without tests it will not be possible to find out in your own skin what a session is, because a student will simply not be allowed to it.
How long to suffer?
Session duration in most educational institutions is about three weeks, which allows you to more or less conveniently spread all the exams. This is to ensure that students have enough time to prepare. Traditionally, there are three to four days between exams, during which you can intensively read notes and textbooks, or just as diligently write cheat sheets, which is closer to someone.
There is no pattern as to when they put "difficult" exams: at the end of the session or closer to its beginning. The fact is that the complexity of the subject is an extremely subjective thing, and for teachers there are usually no difficult disciplines at all. However, Murphy's law usually works here: the most difficult exam will be on the most inconvenient day.
Two semesters, two sessions
The academic year at the university usually consists of two semesters, after each of which there is an examination period. The winter session usually falls after new year holidays and ends at the beginning of February. It may seem that taking exams after a long fun vacation will be very difficult. In fact, many students are much less pleased with the summer session, because the weather is great outside, bright sun, and they have to cram and prepare for exams. The only thing that pleases, perhaps, is that there are only two such periods of especially intensive study in a year. It’s even scary to imagine if there would still be an autumn session, or even a spring one…
It's hard for teachers too.
Teachers have their own opinions about what a session is. For them, this, of course, is not such a stress, but they work no less. After all, they have to listen to a huge number of students who sometimes say something completely different from what the answer to the exam question implies. Yes, and checking written work takes a huge amount of time, and students always strive to rush or beg for a good mark.
Don't be afraid to give up
Many students are most afraid of failing a session - not passing one or more exams. I would like to reassure them and say that even if you do not pass the exam the first time, you will have at least a couple more attempts to prepare well and “conquer” the impregnable discipline. There is nothing wrong with retakes, just try to better master the material and be confident in your abilities.
A lot more can be said about this, but it is enough to learn once what a session is, from your own experience, and 99% of the questions will disappear immediately, as well as exactly the same number of fears.
Sessions in PHP, or how data about a user or buyer who has entered the site, is saved when switching between pages of the site without much difficulty. The lesson is very important. Relevant for creating 95% of sites.
What is session in php
Sessions are used to store information about temporary data (for example, that the user has visited the site) when navigating between pages of the same site. When using sessions, data is stored in temporary files on the server.Most often, sessions (and cookies, by the way, too) are used when creating online stores, forums, bulletin boards, in social networks, blogs and other resources. The convenience of the session system lies in the storage of temporary information of the logged-in user/customer, the data about which is in quick access for a certain time. A session has a natural expiration date - until the browser is closed. If you close only the page, then when you open the site, the data about the user / buyer will still be available.
Session logic
Session (or session) is a kind of temporary data storage. I warn you right away, it is worth saving a small amount of data. For example, the login and password of the entering user or his serial number in the database.Work example
1.
The user enters a username and password and enters the site
2.
Data with login and password is stored in the session of one of the pages of the site:
File index.php
session_start(); // each file in which you want to use session data must contain the "start session" command at the beginning of the code
$login = "admin";
$password = "pass";
$_SESSION["login"] = $login; // save the variable containing the login
$_SESSION["password"] = $password; // save the variable containing the password
3. When you go to another page of the site, this data will also be available:
File example.php(or any other page)
Echo "Your login ".$_SESSION["login"]; // prints out "Your login is admin", even though we didn't write any data on this page!
See, it's simple!
4. If you want to clear the session data, then just:
File example.php
session_start(); // "start session" again
Unset($_SESSION["login"]); // so the variable was unregistered or "destroyed"
echo "Your login is ".$_SESSION["login"]; // displays "Your login " . Since we destroyed it in the last line, there is no data
session_destroy(); // destroy the session. All data, including $_SESSION["password"] is gone. When they are requested, an error will be displayed.
In general, such a transfer is similar to the POST method, but you no longer have to write a lot of extra code, and all data transferred from page to page is stored in temporary files on the server. Again, sessions should contain small amounts of data, so they are suitable for storing login / password, shopping cart and other small volumes.
Passing a value or array using a PHP session
You can write to the session not only a string, but also an array of data. Just do not overdo it with the size of the array, as all this will affect the performance and occupied space on the server.We again use some start page index.php
session_start();
$r = array("one", "two", "three");
$_SESSION["arr"] = $r;
To the page where everything will be displayed
We saved the data in the session and follow the link to another page, where all the data will be displayed.
Destination file, page test.php where to open the array
session_start();
print_r($_SESSION["arr"]);
// output
/*
array
=> one
=> two
=> three
*/
?>
You might want to brush up on the . In general, everything should be clear.
Other functions for working with sessions
session_unregister(string)- session forgets the value of the given global variable;session_destroy()- the session is destroyed (for example, if the user left the system by pressing the exit button);
session_set_cookie_params(int lifetime [, string path [, string domain]])- using this function, you can set how long the session will live by setting the unix_timestamp that determines the session death time.
List of functions for working with sessions (session) in php
session_cache_expire - Returns the expiration of the current cache
session_cache_limiter - Gets and/or sets the current cache limiter
session_commit - alias for session_write_close()
session_decode - Decode session data from a string
session_destroy - Destroys all data registered for a session
session_encode - Encrypts the current session data as a string
session_get_cookie_params - Gets session cookie parameters
session_id - Gets and/or sets the current session id
session_is_registered - determines if the variable is registered in the session
session_module_name - Gets and/or sets the current session module
session_name - Gets and/or sets the name of the current session
session_regenerate_id - Modifies the current session id with the newly generated one
session_register - Registers one or more variables for the current session
session_save_path - Gets and/or sets the saving path of the current session
session_set_cookie_params - Sets session cookie parameters
session_set_save_handler - Sets user-level session storage functions
session_start - initialize session data
session_unregister - Unregisters a variable from the current session
session_unset - Unsets all session variables
session_write_close - writes session data and end of session
Session examples
The pageview count during the session. A good example of work. However, after closing the browser, the countdown will start again.The counter of visits to one page within one session
// A simple example of using sessions without cookies.
session_name("test");
session_start();
$_SESSION["count"] = @$_SESSION["count"] + 1;
?>
Counter
In the current session of working with the browser, you opened this page
time(s).
Close the browser to reset this counter.
Click here to refresh the page!
With each transition, the counter will increase by 1)
Thank you for your attention! Good luck in your endeavors!
