How to update variables in a session in PHP?
If the member logs out and then logs back in, there is no problem, but it is not a solution. Can anyone suggest a way to update the session variables without closing the session? Typical code for member login is shown below (although more session variables are created than shown here).
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Why are my session variables out of date?
The member then goes to a new page where there is a form that is configured using the session variables. The problem is that because the member has changed its own data, the existing session variables are out of date. If the member logs out and then logs back in, there is no problem, but it is not a solution.
Is there a way to store a PHP cookie forever?
Or you can use PHP $_COOKIE, which can be called forever (but is wasteful if you only want it on the next page) – just use hidden type forms for that problem. If we put it in session while the page refreshes its hide as well. if you can store that value in a hidden form field, it will be stored and retrieved at any time.
How to reload current page without losing any form data with HTML?
HTML DOM hasFocus() method. How to reload current page without losing any form data with HTML? The easiest way to reload the current page without losing the form data is to use WebStorage where you have: persistent (localStorage) or session-based (sessionStorage) storage that stays in memory until the web browser is closed.
Can a post variable be reset in PHP?
You can not do this. POST variables may not be resubmitted; if they are, the browser usually does this when the user refreshes the page. The POST variable will never be reset if the user clicks a link to another page instead of refreshing. If $post is a normal variable, it will never be saved.
How to save post data in PHP form?
You can use the file to save the post data so it doesn’t get deleted until someone deletes the file, and of course you can easily modify the file so that the value of your post is stored in $value. Actually in html forms it saves post data. this is valuable when you need to keep data inserted in text boxes.
Is there a way to refresh a page in PHP?
Just like for a flight, you are departing, sailing, or landing. I want to be able to update the status without my viewers having to reload the entire page. I know there is a way to do it with AJAX and jQuery, but I don’t understand how it works. I also don’t want them to have and click a button.
How to refresh data on a page without refreshing?
If you don’t want to use any click events, you can set the timer to update periodically. The following code may be helpful as an example only. The above function will call every 10 seconds and get content from response.php and update #some_div . If you want to know how ajax works, it’s not a good way to use jQuery directly.
Is there a way to increment the index variable in PHP?
With arrays, it can cause a lot of confusion if your index variable is modified on the right side of the = sign, either with ++|– or even when passed to a function by reference. In ‘A’ you should note that PHP evaluates $A [$a] in the end.
What to do if your PHP session is lost?
Depending on your local server, you may need to edit the DocumentRoot in the server’s httpd-ssl.conf so that your local URL is served as https. That’s my storage space on the server. My server’s disk space fills up. So, I deleted some files and folders on my server and gave it a try.
When to call session_start() in PHP?
Make sure session_start(); is called before any session is called. So a safe bet would be to put it at the top of your page, right after the opening.
Do you have to call the cookie before the session id?
Yes, since sessions generally use a cookie to store the session id, it must be called before any output. Otherwise, you’ll get a warning, “… headers already sent…”, and the cookie won’t be set (or updated, if set successfully on another page).
What does the undefined variable notice mean in PHP?
Likewise, if you try to read an ordinary variable before you have declared/assigned something to it (undefined variable warning). As you say, it’s just a warning. It is trying to protect you from accidental errors (typos) in your code. PHP will implicitly return null.