I've looked around on here and couldn't locate any solution for my little problem.
I currently have this following IF statment
if($page==1) {
$sql = "UPDATE page SET page='1' WHERE id=1";
INCLUDE 'month.php';
header("Refresh: 10; url=http://XXXXX.co.uk/?p=2");
}
Which currently updates a database according to what page it is on and then includes the current month calendar file and I hoped I could redirect it to page number 2 which is very much similar but loads another calendar and the SQL adds +2 to the database.
In essence it's just a loop I've made and it just reads a SQL database to see what page it needs to load next< I know there's better ways to create a loop (just to scroll through 3 PHP pages) but I'm not that great at PHP..
So i'm just wondering really, could anybody help me to have that include statement along with the header refresh?
Like said the purpose is so that the pages rolls a loop, I've managed to get it all to work with an iframe (instead of the header) but it takes a few seconds longer for the frame window to load.
#Mario that's perfect - I echoed the following:
if($page==1) {
$sql = "UPDATE page SET page='1' WHERE id=1";
echo '<meta http-equiv="refresh" content="5;url= http://XXXXX.co.uk/?p=2"/>';
INCLUDE 'month.php';
}
Which now loads the loop flawlessly - I've been up all night trying to get that working.
Thank you so much
Can I push page transitions I wonder?
Such as 'push out' or 'scroll out' ?
Related
I have a index.html file consist of certain data with refresh button.
On pressing refresh button it will call refresh.php.
Refresh.php connects database and gets new updated data from database (Say- today's event data) And shows updated data in that refresh.php page
this is what I do.. But I want dynamic home page and want to remove refresh button. In short- whenever user loads homepage..that division should display updated data from database. So should I use .index.php and use php code in index.php itself will work?
I dont want to use asp/ajax/cookie/session. Please give me idea apart from these. Thanks :)
You could check the file's age, e.g.
<?php
$ca_file = '/path/to/foo.blah';
if (is_file($ca_file)) {
// check if file is not older then 1 hour
if (time() - filemtime($ca_file) <1 * 3600) {
$ca_news = 'y';
}
}
That would check if the file is not older then 1 hour. You'll probably want something smaller. Now all you need to do is to check the value of $ca_news and do your magic.
I am having an issue with my adding a new member page,, also having an issue with my login page which is similar in code. Both worked fine, tested multiple times and ways and then I switched hosting companies. The rest of the database driven site works fine still except this part. Have no idea why and possibly just need fresh eyes on it. I am fairly new to php and mysql to begin with,,, then attempting to learn the newer versions to keep my code upgraded has me at this point unable to figure out why the code is no longer working. Any help would be much appreciated. Thanks.
The page will run up to this point,, I have confirmed that using echo, then it fails. The page itself, does not load, justs stays completely blank and the little loading wheel in the tab corner just spins and spins.
$sql="SELECT * FROM table WHERE field LIKE'$username'";
$rs=$db->query($sql);
$arr = $rs->fetch_all(MYSQLI_ASSOC);
// test to make sure there was not an issue loading the db
if($rs != true) { // start second if in nested section
// if any errors in reading the db redirect to a general db is down error page
//close db connection
mysqli_close($db);
// redirect header goes here, removed for this post
} else { // else to go with second if
// get number of rows returned in this case should be 0 or 1
$rows_returned = $rs->num_rows;
echo "num of rows are $rows_returned";
} // end second if
I have been going through pagination tutorials for past 1 week. I have an html page wherein user enter values into the textfields and click submit button. The page then redirects to a php page which displays corresponding output from the sql database. The database makes use of variables which were received by the php script from the HTML page. I am trying to paginate the final table displayed on the php page but have been unable to do so. Relevant Code for the same is:
Search.html
ClOrdID
Symbol
**index.php**
<?php $clordid = $_POST['clordid'];?>
<?php $orderid = $_POST['orderid'];?>
//connected to database using mysqli
$result = mysqli_query($con,"SELECT * FROM abc where clordid like '$clordid' and orderid like '$orderid'
while ($row = $result->fetch_array(MYSQLI_BOTH)) {
echo "<tr>";
for($k=0;$k<150;$k++){
echo "<td>" .$row[$k]. "</td>";}
This code works fine. When I run this query again to calculate total number of rows and also total number of page links to be displayed in pagination, that works as well. However, whenever I click next page using pagination, the code forgets the value of variables imported earlier from html page. I tried to pass it using the url but has been unsuccessful. I believe somehow the values from html page must be retained by the program at all times to make query execute successfully at all times. Can anyone provide me some basic example (or a url) that could help me understand the process? Thanks
You can assign the variable to the session like so:
session_start();
if ($_GET['page_number'] == 1){
$_SESSION['clordid'] = $_POST['clordid'];
}
My website relies completely on a random page generator that loads a page from a text file list. The code was kindly written by "lserni" on the forum. The script has been working perfectly the last few days, and it's happily processed over 100,000 page views in 3 days!
I noticed today however that it seems to have stopped working properly. If you are a brand new visitor to the page, or you've cleared your internet cache/cookies etc - When you load the page for the first time, it doesn't randomly generate a page.. it just shows a BLANK page. If you then refresh the page, the script works perfectly. I just can't get my head round it, but it's now resulted in a large drop in traffic! Hope you can help:
<?php
session_start();
if (!isset($_SESSION['urlist'])) // Do we know the user?
$_SESSION['urlist'] = array(); // No, start with empty list
if (empty($_SESSION['urlist'])) // Is the list empty?
{
$_SESSION['urlist'] = file("linklist.txt"); // Fill it.
$safe = array_pop($_SESSION['urlist']);
shuffle($_SESSION['urlist']); // Shuffle the list
array_push($_SESSION['urlist'], $safe);
}
$url = trim(array_pop($_SESSION['urlist']));
header("Location: $url");
?>
It's actually the LAST item in the file that's used first if there is no session data.
{
$safe = array_pop($_SESSION['urlist']); // gets item at the END of the array
shuffle($_SESSION['urlist']);
array_push($_SESSION['urlist'], $safe); // puts item at the END of the array
}
$url = trim(array_pop($_SESSION['urlist']));// gets item at the END of the array
So if you introduced a newline in your textfile at the end, it may be your issue.
I would suggest, after the header call, add some HTML that explains where the user is being redirected to. All being well nobody will ever see it, but it could help diagnose why the user gets an empty page.
I've searched far and wide and every CMS tutorial out there either doesn't explain this at all or gives you a huge chunk of code without explaining how it works. Even on stack overflow I can't find anything close to the answer, though I'd be okay with eating my words if someone could point me to the answer.
I am using PHP and mysql for this project.
I am building a CMS. Its extremely simple and I understand every concept I think I'll need except how to dynamically generate pages and page links. The way I want to do it is by having a database table that stores the name of a page and the main content of the page. That's all. Then I'd just call a script to pull the main content of a page into whatever page I happen to call. No big deal, right? Wrong.
Here's the problem. If I were to do this then I'd have to create a file for every page I want to create that calls the script that pulls the content from the correct database row. So I could add all sorts of page names and contents into the table but I don't know how to call them without manually creating new files each time I want to link to a new page.
Ideally there'd be a script that creates links to pages based on the page name row of the DB table as the pages are created. But how do you get those links with the ?=pageName at the end? If I just knew how that worked then I could figure the rest out.
UPDATE
The second answer really confirmed everything I thought I had to do but there is one catch. My plan now is to split up all the code into a series of functions and either include or require them in different templates that will be used to format the way pages are displayed. I need one look for the home page and one other design for the rest of the pages. I'm thinking that I'll have a function that says if ID is 0 then call this page template.php else call this other template file.php. But how do I pass the required variables to these new files? Do I just include the index.PHP page in them?
Bill your actually on the right track. Almost all web software today does extensive URL processing. Traditionally you would have php pages on your web root and then utilize the query string in the URL to refine the page's output. You have already arrived at why this might not be desired. So the popular alternative is the Front Controller design pattern. Basically we funnel every request to your index.php page and then route the request to internal pages or apps outside the web root. This can get complicated fast and everybody seems to implement this pattern in unique ways.
We can utilize this pattern without the routing by simply putting our app in the index page. The script below shows an example of what your trying to do in the simplest of ways. We basically have one page with our script. We can request the virtual pages by changing the id query string in our url. For example www.demo.net/?id=0 can be utilized as an index to your site. This should be the same as www.demo.net without the 'id' query. Just keep solving those problems one by one even if you don't know what the problem is. Once you start looking at other peoples code, then you can start seeing how other people solved the same problems you have.
The solution below will get you started, but then what do you do when you want an admin page? How do you authenticate the user? Do you duplicate alot of the code for yet another page? If your serious about your CMS then your going to want to implement some kind of framework underneath it. A framework to process the url, route to your application, load configuration files, and probably manage your database connection. Yea it gets complicated, but not if you solve each problem one at a time. Utilize classes or functions to share code to start. At the very least include a common "bootstrap" file at the top of your page to initialize common functionality such as a database connection. Read Stack Overflow just to keep up with whats going on. You can learn alot of terminology and probably find some answers to questions you didn't even know you wanted to ask.
Below assume we have a table with the following fields:
page_id
page_name
page_title
page_body
<?php
//<--------Move outside of web root-------------->
define('DB_HOST', 'localhost');
define('DB_USER', 'cms');
define('DB_PASS', 'changeme');
define('DB_DB', 'cms');
define('DB_TABLE', 'cms_pages');
//<---------------------------------------------->
//Display errors for development testing
ini_set('display_errors','On');
//Get the requested page id
if(isset($_GET['id']))
{
$id = $_GET['id'];
}
else
{
//Make page id '0' an index page to catch all
$id = 0;
}
//Establish a connection to MySQL
$conn = mysql_connect(DB_HOST,DB_USER,DB_PASS) or die(mysql_error());
//Select the database we will be querying
mysql_select_db(DB_DB, $conn) or die(mysql_error());
//Lets just grab the whole table
$sql = "SELECT * FROM ".DB_TABLE;
$resultset = mysql_query($sql, $conn) or die(mysql_error());
//The Select Query succeeded, but returned 0 result.
if (mysql_num_rows($resultset)==0)
{
echo "<pre>Add some Pages to my CMS</pre>";
exit;
}
//This is our target array we need to fill with arrays of pages
$result = array();
//Convert result into an array of associative arrays
while($row = mysql_fetch_assoc($resultset))
{
$result[] = $row;
}
//We now have all the information needed to build our app
//Page name - Short name for buttons, etc.
$name = "";
//Page title - The page content title
$title = "";
//Page body - The content you have stored in a table
$body = "";
//Page navigation - Array of formatted links
$nav = array();
//Process all pages in one pass
foreach($result as $row)
{
//Logic to match the requested page id
if($row['page_id'] == $id)
{
//Requested Page
$name = $row['page_name'];
$title = $row['page_title'];
$body = $row['page_body'];
$page = "<b>$name</b>";
}
else
{
//Not the requested page
$page = $row['page_name'];
}
//Build the navigation array preformatted with list items
$url = "./?id=" . $row['page_id'];
$nav[] = "<li>$page</li>";
}
?>
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title>SimpleCMS | <?php echo $title; ?></title>
</head>
<body>
<div>
<div id="navigation" style="float:left;">
<ul>
<?php
foreach($nav as $item)
{
echo $item;
}
?>
</ul>
</div>
<div id="content"><?php echo $body;?></div>
</div>
</body>
</html>
I think you need to read about $_GET.
I also recommend a decent PHP book. Forget online tutorials; they are (for the most part) utterly useless.