Codeigniter clear cache after logout

Some time developers fetch the cache problem when they are developing the app with the codeigniter framework. Below I am giving some methods that how you can clear the cache of codeigniter.

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If you no longer wish to cache a file you can remove the caching tag and it will no longer be refreshed when it expires. Note: Removing the tag will not delete the cache immediately. It will expire after some time normally. Which are. Clearing a cached path : You can clear any specified path of its cache by calling following method. Firefox and Microsoft Internet Explorer are recommended browsers for websites using java applets.

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All these methods are deprecated in Codeiginiter 3. Powered by Bootstrap Blogger Templates.

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Enabling and deleting caches in Codeigniter is fairly straightforward and easy. In this post, I am writing about deleting caches. You no longer need to delete caches manually in Codeigniter 2.

If you no longer wish to cache a file in Codeigniter you can remove the cache files. Following are two methods to do it. Email This BlogThis! Labels: cachingCodeigniter. Unknown April 3, at PM.

Unknown February 7, at AM. Unknown April 23, at AM. Ricky Edits September 20, at PM. Newer Post Older Post Home. Subscribe to: Post Comments Atom. Search This Blog. Flushing CodeIgniter's cache or Deleting Caches in If you want to remove the comma from the end of a string, you can use various tricks. But one simple trick is to use PHP inbuilt function rt How to manage Codeigniter Session Timeout? Codeigniter session timeout value is specified in the config. You can change the default value of How to strip whitespace from an array using PHP?CodeIgniter comes with a few session storage drivers, that you can see in the last section of the table of contents:.

Sessions will typically run globally with each page load, so the Session class should be magically initialized. If not provided, the services register will instantiate your default one.

Alternatively, you can use the helper function that will use the default configuration options. This version is a little friendlier to read, but does not take any configuration options.

If a valid session does exist, its information will be updated. With each update, the session ID may be regenerated if configured to do so. There is nothing you need to do to cause the above behavior to happen. To use a more appropriate technical term - requests were non-blocking. However, non-blocking requests in the context of sessions also means unsafe, because, modifications to session data or session ID regeneration in one request can interfere with the execution of a second, concurrent request.

This detail was at the root of many issues and the main reason why CodeIgniter 4 has a completely re-written Session library. Why are we telling you this? Because it is likely that after trying to find the reason for your performance issues, you may conclude that locking is the issue and therefore look into how to remove the locks ….

Removing locks would be wrong and it will cause you more problems! Locking is not the issue, it is a solution. So, what you need is to close the session for the current request after you no longer need it.

Login and Logout using Sessions and Cookies

In addition, CodeIgniter also provides 2 special types of session data that are further explained below: flashdata and tempdata. Where item is the array key corresponding to the item you wish to fetch. The get method returns NULL if the item you are trying to access does not exist. If you want to retrieve all of the existing userdata, you can simply omit the item key magic getter only works for single property values :.

Once authenticated, you could add their username and e-mail address to the session, making that data globally available to you without having to run a database query when you need it. The former userdata method is deprecated, but you can pass an array containing your new session data to the set method:. If you want to add session data one value at a time, set also supports this syntax:. If you want to verify that a session value exists, simply check with isset :. Or you can call has :.

The push method is used to push a new value onto a session value that is an array. Also, just as set can be used to add information to a session, remove can be used to remove it, by passing the session key. It should be noted that flashdata variables are regular session variables, managed inside the CodeIgniter session handler.

codeigniter clear cache after logout

Or alternatively, using the setFlashdata method:. You can also pass an array to setFlashdatain the same manner as set.I have alredy loaded driver library for cache in autoload. All these methods are deprecated in Codeiginiter 3. Powered by Bootstrap Blogger Templates. Enabling and deleting caches in Codeigniter is fairly straightforward and easy.

In this post, I am writing about deleting caches. You no longer need to delete caches manually in Codeigniter 2. If you no longer wish to cache a file in Codeigniter you can remove the cache files. Following are two methods to do it. Email This BlogThis!

Deleting Caches in Codeigniter

Labels: cachingCodeigniter. Unknown April 3, at PM. Unknown February 7, at AM.

codeigniter clear cache after logout

Unknown April 23, at AM. Ricky Edits September 20, at PM. Newer Post Older Post Home. Subscribe to: Post Comments Atom.

codeigniter clear cache after logout

Search This Blog. Flushing CodeIgniter's cache or Deleting Caches in If you want to remove the comma from the end of a string, you can use various tricks. But one simple trick is to use PHP inbuilt function rt How to manage Codeigniter Session Timeout? Codeigniter session timeout value is specified in the config.

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You can change the default value of How to strip whitespace from an array using PHP? You can strip white space from an array by using a combination of following php functions. How to empty or truncate mysql table using codeigniter active record? If you want to empty or truncate a mysql table using Codeigniter active record, use the following code.

How to get all post data in Codeigniter. Before you have to do this long boring way to get all the post datas using Codeigniter. This plugin is to create a comprehensive interactive calendar that looks like "Google Calendar".

And to perform basic operations o In the below example, I have shown how to get the URL dynamicallAlthough CodeIgniter is quite fast, the amount of dynamic information you display in your pages will correlate directly to the server resources, memory, and processing cycles utilized, which affect your page load speeds. By caching your pages, since they are saved in their fully rendered state, you can achieve performance much closer to that of static web pages.

Caching can be enabled on a per-page basis, and you can set the length of time that a page should remain cached before being refreshed. When a page is loaded for the first time, the file will be cached using the currently configured cache engine.

If it has expired, it will be deleted and refreshed before being sent to the browser. The Benchmark tag is not cached so you can still view your page load speed when caching is enabled. The above tag can go anywhere within a method. It is not affected by the order that it appears, so place it wherever it seems most logical to you. Once the tag is in place, your pages will begin being cached. If you change configuration options that might affect your output, you have to manually delete your cache files.

If you no longer wish to cache a file you can remove the caching tag and it will no longer be refreshed when it expires. Removing the tag will not delete the cache immediately. It will have to expire normally. How Does Caching Work? Note The Benchmark tag is not cached so you can still view your page load speed when caching is enabled.

Important If you change configuration options that might affect your output, you have to manually delete your cache files. Note Removing the tag will not delete the cache immediately.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I would like to clear the cache after user logged out of particular session.

I don't want anonymous user to use back button of the browser to see the cached pages which has confidential data. How are we doing? Please help us improve Stack Overflow. Take our short survey. Learn more. How to clear the cache after user log out from website in codeigniter Ask Question. Asked 5 years, 4 months ago. Active 5 years, 4 months ago. Viewed 4k times.

How To Clear Your Cache On A Mac

At the same time i don't want to clear the cache during valid session to avoid performance hit. What is the best practice to handle this scenario? This might be the good way to do it : webtuts. IndrasinhBihola, I don't want to get rid of cache during valid session. Is there a way i can clear cache after logout? Active Oldest Votes.

Clear Page Cache

Shahinul Islam S. Shahinul Islam 2, 2 2 gold badges 32 32 silver badges 60 60 bronze badges. I have implemented in my library after logout. Still i am able to see the history of pages using back button. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Podcast Cryptocurrency-Based Life Forms. Q2 Community Roadmap. Featured on Meta. Community and Moderator guidelines for escalating issues via new response….

Feedback on Q2 Community Roadmap. Triage needs to be fixed urgently, and users need to be notified upon…. Dark Mode Beta - help us root out low-contrast and un-converted bits. Technical site integration observational experiment live on Stack Overflow. Related CodeIgniter gives you access to a Query Builder class. This pattern allows information to be retrieved, inserted, and updated in your database with minimal scripting. In some cases only one or two lines of code are necessary to perform a database action.

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CodeIgniter does not require that each database table be its own class file. It instead provides a more simplified interface. Beyond simplicity, a major benefit to using the Query Builder features is that it allows you to create database independent applications, since the query syntax is generated by each database adapter.

It also allows for safer queries, since the values are escaped automatically by the system. If you intend to write your own queries you can disable this class in your database config file, allowing the core database library and adapter to utilize fewer resources. Runs the selection query and returns the result. Can be used by itself to retrieve all records from a table:. Please visit the result functions page for a full discussion regarding result generation.

This method simply returns the SQL query as a string. This is useful if you need a compound select statement where automatic escaping of fields may break them. You can optionally include a second parameter to rename the resulting field. If you need a specific type of JOIN you can specify it via the third parameter of the function.

Options are: left, right, outer, inner, left outer, and right outer. All values passed to this function are escaped automatically, producing safer queries. There are 2 possible syntaxes, 1 argument or If you are using a database that CodeIgniter escapes queries for, you can prevent escaping content by passing an optional third argument, and setting it to FALSE. The second parameter lets you set the direction of the result.

If you choose the RANDOM direction option, then the first parameters will be ignored, unless you specify a numeric seed value.

Random ordering is not currently supported in Oracle and will default to ASC instead. Permits you to determine the number of rows in a particular Active Record query. However, this method also resets any field values that you may have passed to select. Permits you to determine the number of rows in a particular table. Submit the table name in the first parameter.


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