I have a form on every page that is a quick navigation. Based on the value of the drop-downs it will redirect to a specific page. The URL after using it will look like /page?first=abc&second=def&third=ghi. If you leave the page and go to pageB the url will just say /pageB. I'm trying to create a SESSION for second if it's set and when it's no longer set (navigating to a different page not using the quicknav) still store the value when it was set. Here is what I have so far...
function storeVariable {
global $saved_second
$store_second = $_GET['second'];
$saved_second ='';
if (isset($store_second)) {
$_SESSION['second'] = $_GET['second'];
$sessionsecond = $_SESSION['second'];
$saved_second = $sessionsecond;
}
return $save_second
}
In the header I have
global $saved_second;
echo $saved_second;
The above code is fine for the initial page the quick navigation goes to. It shows the value of $saved_second in the header. I'm not sure how I would say
if (isset($saved_second) && (!isset($stored_second) {
USE SESSION THAT WAS CREATED WHEN $stored_second WAS SET
I thought something like...
if ($store_second != $sessionsecond){
but that doesn't work either because the session was created in an IF statement.
Then I tried...
IF (!isset($saved_second)) {
IF (isset($_GET['second'])) {
$_SESSION['second'] = $_GET['second'];
$saved_second = $_SESSION['second'];
}}
Any suggestions?
<?php
session_start();
if(empty($_SESSION['track']))
$_SESSION['history'] = array($_SERVER['PHP_SELF']);
else {
$_SESSION['track'][] = $_SERVER['PHP_SELF'];
if(count($_SESSION['track']) > 5)
array_shift($_SESSION['track']);
}
function display()
{
print_r(array_values($_SESSION['track']));
}
?>
i was able to do it using session but i need to use only cookies and php to track the last 5 pages visited.
any idea guys??
Any comment or answer will appreciate. Thanking in advance.
$url = unserialize($_COOKIE['history']);
array_push($url,your_url);
setcookie('history', serialize($url));
onload of every page first retrieve the value of cookie in url and push the current url in it and add set it to cookie
I'm trying to code the last 5 page names the user viewed on my site and produce it into a list. I'm currently able to get the current page name, but I don't know how to get the previous pages. This is the code I'm using to get the current page name:
<?php
$pageName = basename($_SERVER['PHP_SELF']);
echo $pageName;
?>
PHP Sessions should get you going in the right direction. For example:
session_start();
if(!isset($_SESSION['pages'])) {
$_SESSION['pages'] = array();
}
if(count($_SESSION['pages']) < 5) {
$_SESSION['pages'] [] = $_SERVER['PHP_SELF'];
} else {
echo "Limit reached";
}
print_r($_SESSION['pages']);
I recommend you use PHP Sessions to accomplish this.
So, save the current page name that you want to the sessions variable like so:
<?php
$pageName = basename($_SERVER['PHP_SELF']);
$_SESSION['pageName'] = $pageName;
?>
And then continue to save these names. #Len_D just beat me to the punch with an answer that uses arrays and is likely what you need.
I am new to php, I need small help
I m creating a page in php named index.php
i want when someone view that page automatically a number or anything would be added to the url end
Like www.abc.com/index.php ---> www.abc.com/index.php?abc or ?132
when ever that index page is refreshed it should get a number or any variable in the end
Try this:
<?php
if (!isset($_GET["123"])) {
header("Location: " . $_SERVER["PHP_SELF"] ."?123");
}
$QS = $_SERVER["QUERY_STRING"];
$URL = "http://www.example.com/index.php";
// Check if Anything already assigned
if( empty($QS) ) {
// Generate Any RANDOM Number Here
$NUM = mt_rand(999, 9999);
// Reload Page and assign number
header("Location: {$URL}?{$NUM}");
}
Place this code in the very top of your page
Give this a go
<?php
$num = '123';
if(!isset($_GET[$num])){
header("Location: /path/to/page?$num");
}
I am redirecting to a different page with Querystring, say
header('location:abc.php?var=1');
I am able to display a message on the redirected page with the help of querystring value by using the following code, say
if (isset ($_GET['var']))
{
if ($_GET['var']==1)
{
echo 'Done';
}
}
But my problem is that the message keeps on displaying even on refreshing the page. Thus I want that the message should get removed on page refresh i.e. the value or the querystring should not exist in the url on refresh.
Thanks in advance.
You cannot "remove a query parameter on refresh". "Refresh" means the browser requests the same URL again, there's no specific event that is triggered on a refresh that would let you distinguish it from a regular page request.
Therefore, the only option to get rid of the query parameter is to redirect to a different URL after the message has been displayed. Say, using Javascript you redirect to a different page after 10 seconds or so. This significantly changes the user experience though and doesn't really solve the problem.
Option two is to save the message in a server-side session and display it once. E.g., something like:
if (isset($_SESSION['message'])) {
echo $_SESSION['message'];
unset($_SESSION['message']);
}
This can cause confusion with parallel requests though, but is mostly negligible.
Option three would be a combination of both: you save the message in the session with some unique token, then pass that token in the URL, then display the message once. E.g.:
if (isset($_GET['message'], $_SESSION['messages'][$_GET['message']])) {
echo $_SESSION['messages'][$_GET['message']];
unset($_SESSION['messages'][$_GET['message']]);
}
Better use a session instead
Assign the value to a session var
$_SESSION['whatever'] = 1;
On the next page, use it and later unset it
if(isset($_SESSION['whatever']) && $_SESSION['whatever'] == 1) {
//Do whatever you want to do here
unset($_SESSION['whatever']); //And at the end you can unset the var
}
This will be a safer alternative as it will save you from sanitizing the get value and also the value will be hidden from the users
There's an elegant JavaScript solution. If the browser supports history.replaceState (http://caniuse.com/#feat=history) you can simply call window.history.replaceState(Object, Title, URL) and replace the current entry in the browser history with a clean URL. The querystring will no longer be used on either refresh or back/previous buttons.
When the message prompt ask for a non exsisting session. If false, show the message, if true, do nothing. session_start(); is only needed, if there is no one startet before.
session_start();
if ($_GET['var']==1 && !isset($_SESSION['message_shown']))
{
$_SESSION['message_shown'] = 1;
echo 'Done';
}
Try this way [Using Sessions]
<?php
//abc.php
session_start();
if (isset ($_GET['var']))
{
if ($_GET['var']==1)
{
if(isset($_SESSION['views']))
{
//$_SESSION['views']=1;
}
else
{
echo 'Done';
$_SESSION['views']=1;
}
}
}
?>
Think the question mean something like this?
$uri_req = trim($_SERVER['REQUEST_URI']);
if(!empty($_SERVER['REQUEST_URI'])){
$new_uri_req = str_replace('?avar=1', '?', $uri_req);
$new_uri_req = str_replace('&avar=1', '', $new_uri_req);
$pos = strpos($new_uri_req, '?&');
if ($pos !== false) {
$new_uri_req = str_replace('?&', '?', $new_uri_req);
}
}
if( strrchr($new_uri_req, "?") == '?' ){
$new_uri_req = substr($new_uri_req, 0, -1);
}
echo $new_uri_req; exit;
You can use then the url to redirect without vars. You can also do the same in js.
str_replace() can pass array of values to be replaced. First two calls to str_replace() can be unified, and filled with as many vars you like that needs to be removed. Also note that with preg_replace() you can use regexp that can so manage any passed var which value may change. Cheers!