PHP - What Is Visible?

Hi all.
I've seen on facebook and on some other sites where content refreshes without complete page reloads.
for example, right after posting a comment to a database, without any discernible page change, the comment appears somewhere on the page.
Is it using php vars and some auto refresh function, (how does it, without reloading appear then?)
I know that I am not very clear, but I need to know how to achieve this.

If you like to help me, please look at the attachments. They depict the process which I dearly want to know of.

Thank you for reading, and thanks in advance for trying to help.

Thauwa.

Sorry if this is in the incorrect section, but I suspect php activity here.

Hi, I've done some serious google'ing... I'm all googled out and it doesn't appear there is a solution to this the way I'm attempting it and it's probably more a case of my early ventures into development that I'm missing something that may or may not be a better and if not more obvious way to do this...

Here's the principle, Customer Logs into webpage - greeted by profile page (all cushty so far) - Can choose to move to view 'audio files' which relate to the products they have purchased (this is where it gets silly...)

The idea is that both the profile page and the audio page are controlled by a $_SESSION within PHP scripting so the pages are dynamic.  I want to include all of the audio files for every product on the 'audio.php' page BUT I only want the ones that they have purchased to be visible...

All the setup is fine because the following works fine:
Code: [Select]
if($info['halftimerock'] == 1) { echo "<p>Half Time Rock</p>";}
Which essentially checks the db, finds a 1 in the appropriate product and displays the name of the product in a list, if no products then nothing in the list etc.

What I want to do is control the visibility of some <div>'s using the same kind of idea, so:
Code: [Select]
if($info['halftimerock'] == 1) { CODE TO DISPLAY DIV IN HERE }
I have a 'toggleelement' JS function available which works for mouse clicks but obviously php and js don't exactly go well together so that is probably not the way to go, I'm already running a lot of PHP at the top of the page before the HTML to stop session header errors.

A couple of web searches have suggested I insert a <script> tag into the echo command but I can't get that to work and I guess it's a really messy way of trying to do things!

So here's the question, any ideas about how to toggle <div> visibility within php or is that purely something for js to handle?...
Is there a better/cleaner way of doing it all, perhaps redirecting users to different pages based on their entries in the DB (which could all be handled with headers but I'll end up with a million different pages and combinations eventually?

I could always create a .htaccess/.htpasswd file system and handle the folders with audio content in manually so that all files are visible but only a valid username and password will be able to access the file but that's going to get annoying for people having to put in user/pass for every file and also for me updating the users for each individual file every time some1 buys something...

Any ideas?  Anybody done anything similar?  Cheers

Hello

I need help with making our dropdown links stay visible when active.

Site:

London tshirt .com

Code: [Select]
<dl id="nav">
<dt class="nav"><b>London Tshirts</b></dt>
<dd>
<ul>
<li><a href="/Unisex">Unisex</a></li>
<li><a href="/Slimfit">Slimfit</a></li>
<li><a href="/Kids">Kids</a></li>

</ul>
</dd>
<dt class="nav"><b>Alternative Tshirts</b></dt>
<dd>
<ul class="nav">
            <li><a href="/England">England</a></li>
<li><a href="/Humour">Humour</a></li>
             <li><a href="/Popular">Popular</a></li>
</ul>
</dd>
<dt class="nav"><b>Magnets</b></dt>
<dd>
<ul class="nav">
<li><a href="/magnets-ceramic">Ceramic</a></li>
            <li><a href="/magnets-metal">Metal</a></li>
<li><a href="/magents-plastic">Plastic</a></li>
</ul>
</dd>
<dt class="nav"><b>Keyrings</b></dt>
<dd>
<ul class="nav">
<li class="current"><a href="/keyrings-ceramic">Ceramic</a></li>
            <li class="current"><a href="/keyrings-metal">Metal</a></li>
<li><a href="/keyrings-plastic">Plastic</a></li>
</ul>
</dd>
    <dt class="nav"><b>Other gifts</b></dt>
<dd>
<ul class="nav">
<li><a href="/Hats">Hats</a></li>
            <li><a href="/Models">Models</a></li>
<li><a href="/Bags">Bags</a></li>
</ul>
</dd>
</dl>
Thanks

P.S.
I typed my question, then went to verification, but could not read the letters so requested a new image, this refreshed the page and I lost my message??

Hi,

Ok so I have the youtube url input working and it shows the video fine have a look at
Code: [Select]
http://www.cyberhost.me/test

But now what I need is for the script to display the embed code needed for the user.

This is the script:

Code: [Select]
<?php
 $text = $_POST["text"];
 if (!isset($_POST['submit'])) { // if page is not submitted to itself echo the form
 ?>
 <html>
 <head>
 <title>Youtube code generator</title>
 </head>
 <body>
 <p>Copy and paste this url for example: http://www.youtube.com/watch?v=YdDIsImNfBY&feature</p><br/><br/>
 <form method="post" action="<?php echo $PHP_SELF;?>">
 Youtube URL:<input type="text" size="50" maxlength="50" name="text"><br />
 <input type="submit" value="submit" name="submit">
 </form>
 <?php
 } else {
 
 
//space anything that would get included in a link, add the space
$text = str_ireplace(array("<br />","\n","\r"),array(" <br /> "," \n "," \r "),$text);
$text = str_replace("  ", " ", $text);
//explode the text by spaces
$text_explode = explode(" ",$text);
//loop replacing youtube links with embed codes, if not youtube embed return text
foreach($text_explode as $words){
if (preg_match('~(?:youtube\.com/(?:[^/]+/.+/|(?:v|e(?:mbed)?)/|.*[?&]v=)|youtu\.be/)([^"&?/ ]{11})~i', $words, $match)) {
$vidid = $match[1];//the id
$link = "http://youtu.be/$vidid";//short link to video

//grab the title
$visit_url = "http://gdata.youtube.com/feeds/api/videos/".$vidid;
$doc = new DOMDocument;
 @$doc->load($visit_url);
$link_title = $doc->getElementsByTagName("title")->item(0)->nodeValue;
if($link_title == ""){
$link_title = "Click to watch video.";
}
//display a link
echo "<h3><a href='$link' TARGET='_blank'>$link_title</a></h3>";
//embed the video
echo "<div>";
echo "<object style='height: 390px; width: 640px'>
<param name='movie' value='http://www.youtube.com/v/$vidid&fs=1'>
<param name='allowFullScreen' value='true'>
<param name='allowScriptAccess' value='always'>
<embed src='http://www.youtube.com/v/$vidid&fs=1' type='application/x-shockwave-flash' allowfullscreen='true' allowScriptAccess='always' width='640' height='390'></object>";
echo "</div><br />";
} else {
//keep the original words
echo " $words ";
}
}
 }
?>

The code I need displayed below is

Code: [Select]
<p> <img height="350" width="425" class="fw_media_youtube fw-parse" alt="YouTube-CODE PLACED HERE" src="http://thumbs.webs.com/Platform/mediaPreview.jsp?type=YouTube&amp;id=CODE PLACED HERE"/></p>

Where you see "CODE PLACED HERE" is where i need the video id placed and then for it to be displayed.

Any idea how I would do this?

Thanks in advance

Hello All,   New Year Greetings!!   I have integrated a script for TODO list in my website. Its working fine, but adding New task will be appear only after refreshing the page, whereas delete and save are happening as and when i click on them. I dont know where can i make it right.   Here is my code   Display

<div class="w-box-content todo-list">
                               
                               <ul class="todoList">
		
        <?php
		
		require "todo.class.php";
$query = mysql_query("SELECT * FROM `tz_todo` ORDER BY `position` ASC");

$todos = array();

while($row = mysql_fetch_assoc($query)){
	$todos[] = new ToDo($row);
}
		foreach($todos as $item){
			echo $item;
		}
		
		?>

    </ul>

<a id="addButton" class="green-button" href="#">Add a ToDo</a>
<div id="dialog-confirm" title="Delete TODO Item?">Are you sure you want to delete this TODO item?</div>

I am including

<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.0/themes/humanity/jquery-ui.css" type="text/css" media="all" />
            <link rel="stylesheet" type="text/css" href="styles.css" />
<script type="text/javascript" src="script.js"></script>

 and in ajax.php

require "connect.php";
require "todo.class.php";


$id = (int)$_GET['id'];

try{

	switch($_GET['action'])
	{
		case 'delete':
			ToDo::delete($id);
			break;
			
		case 'rearrange':
			ToDo::rearrange($_GET['positions']);
			break;
			
		case 'edit':
			ToDo::edit($id,$_GET['text']);
			break;
			
		case 'new':
			ToDo::createNew($_GET['text']);
			break;
	}

}
catch(Exception $e){
//	echo $e->getMessage();
	die("0");
}

echo "1";