jQuery show div in PHP While loop - php

I am having a bit of problems trying to show an information in a div tag using jQuery inside the PHP while loop.
My code looks like this:
$i=1;
while($pack = mysql_fetch_array($packs))
{
$pricepack = $price * $pack['refcount'];
$pricepack = number_format($pricepack,2);
if($users > $pack['refcount'] ) {
$contents .= "
<a class='refbutton' style='text-decoration:none;' onclick=\"document.rent.refs.value='{$pack['refcount']}';document.rent.submit(); return false;\" >{$pack['refcount']}</a>
<div id='refinfo' style='display:none;'>
<span style='font-size:18pt;font-weight:bold;' id='refprice'></span><br />
<span style='color:#D01F1E;'>You don't have enough funds for this package.</span>
</div>
<script type='text/javascript'>
$(document).ready(function() {
$('.refbutton').hover(
function() {
$('#refinfo').show();
$('#refprice').text(\"$\"+\"$pricepack\");
},
function() {
$('#refinfo').hide()
}
);
});
</script>
";
$i++;
}
}
The problem is that the code is generating a div next to each anchor element. This will cause this when the mouse hovers:
What I am trying to obtain is this on every button hover:
As you can see in the second picture, there isn't any design errors or mix-ups. How can I obtain this?
Thank you.

You need to start by cleaning up your code. You only need one refinfo div, and only one javascript block. The only thing in your loop should be the refbutton, and that tag should contain all the values needed for the javscript hover and click events to do their business. Look into HTML5 custom data attributes http://html5doctor.com/html5-custom-data-attributes/
Something more like this should work and provide a sounder basis on which to debug layout issues if any remain.
<?php
$i=1;
while($pack = mysql_fetch_array($packs)) {
$pricepack = $price * $pack['refcount'];
$pricepack = number_format($pricepack,2);
if($users > $pack['refcount'] ) {
$contents .= "
<a class=\"refbutton\" data-pricepack=\"{$pricepack}\" style=\"text-decoration:none;\" >{$pack['refcount']}</a>";
$i++;
}
}
?>
<div id="refinfo" style="display:none;">
<span style="font-size:18pt;font-weight:bold;" id="refprice"></span><br />
<span style="color:#D01F1E;">You don't have enough funds for this package.</span>
</div>
<script type="text/javascript">
$(document).ready(function() {
$('.refbutton')
.bind('mouseover',function(event) {
$('#refinfo').show();
$('#refprice').text($(this).data("pricepack"));
})
.bind('click',function(event) {
document.rent.refs.value=$(this).text();
})
.bind('mouseout', function(event){
$('#refinfo').hide();
})
;
});
</script>

Related

How do I adjust margin-top attribute depending on length of php title?

I'm building a custom template in Wordpress.
I need the title of the page to auto adjust itself if it is larger than 45 characters.
The title is being pulled from the Wordpress database via PHP.
I am trying to build javascript to do this:
If the length of the title (via php) is < 45 characters: change the css attribute "margin-top" to 111px.
Else change the css attribute "margin-top" to 150px.
Here is what I have so far:
My HTML:
<div class="title-of-page" id="title" style="margin-top:53px">
<?php echo get_the_title($post->post_parent); ?>
</div>
My Javascript:
<script>
if ( <? php strlen(get_the_title($post - > post_parent)) ?> < 45) {
document.getElementById("title").style.marginTop = "111px";
} else {
document.getElementById("title").style.marginTop = "150px";
}
</script>
Ask questions if I'm not being clear enough.
Why javascript?
<?php
$title = get_the_title($post->post_parent);
if (strlen($title)<45) { $mtop ='111px'; } else { $mtop='150px'; }
echo '<div class="title-of-page" id="title" style="margin-top:'.$mtop.';">'.$title.'</div>';
?>
You can do it in PHP only as #Thomas Martin suggested.
However if you are too keen to do it at the Javascript Side.You can do it by .
<script>
var title = document.getElementById('title').textContent;
if(title.length < 45){
document.getElementById("title").style.marginTop = "111px";
}else{
document.getElementById("title").style.marginTop = "150px";
}
</script>

PHP Show/hide link

I have a function that prints out articles from my database and three links Edit , Add , Show/hide.
In the show/hide link i want to be able to hide/show that particular article.
How can i do that?
EDIT: I need to be able to hide/show articles in my backend page and it needs to stay hidden in the frontend page
function displaynews()
{
$data = mysql_query("SELECT * FROM news") // query
or die(mysql_error());
while ($info = mysql_fetch_array($data))
{
$id = $info['id'];
echo "<br>
<a href=Edit.php?id=$id>Edit</a></a>
<a href='addnews.php'> Add </a>
<a href='#'>Show/Hide</a><br><strong>" .
$info['date'] .
"</strong><br>" .
$info['news_content'] .
"<hr><br>"; // Print Articles and Date
}
}
You could use some Javascript and set the style attribute to display:none to hide, then display:block to show it again. Or use jQuery.
Use jquery.
<head>
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js" ></script>
</head>
show/hide
<div id="whatever">
Content
</div>
<script>
//Try these too
$('#whatever').hide();
$('#whatever').show();
$('#whatever').toggle();
</script>
Use following code:
PHP Code:
function displaynews()
{
$data = mysql_query("SELECT * FROM news") // query
or die(mysql_error());
while ($info = mysql_fetch_array($data))
{
$id = $info['id'];
echo "<div class="news"><br><a href=Edit.php?id=$id>Edit</a></a><a href='addnews.php'> Add </a><a href=hide.php>Show/Hide</a><br><strong>". $info['date']."</strong><br>". $info['news_content'] . "<hr><br></div>"; // Print Articles and Date
}
}
Javascript/jQuery Code (Don't forget to add jQuery in your page)
<script type="text/javascript">
$(document).ready(function(){
$(".news").click(function(){
$(this).toggle();
});
});
</script>

change div containing checkbox attributes when checked

this is my javascript that allows for a filter search field ...
function escape4regex(text)
{
return text.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&");
}
function searchRegExFieldKeyUp()
{
var table = document.getElementById('ModelFilter');
var cells = table.getElementsByTagName('div');
var searchterms = escape4regex(this.value);
var regVar = '(?=.*' + searchterms.replace(/\s/g, '.*)(?=.*') + '.*)';
var i=cells.length;
while (i--)
{
var cell = cells[i];
var rowStr = cell.innerHTML;
// remove all tags
rowStr = rowStr.replace(/<(?:.|\n)*?>/gm, '').replace(/\n|\s{2,}/gm, ' '); // searches whole row
var regex = new RegExp(regVar,"gi");
var result = (regex.test(rowStr));
if(result)
{
cell.style.display = "";// check if compat with IE
}
else
{
cell.style.display = "none";
}
}
}
this creates checkboxes from databse inputs
<div id="ModelFilter">
<?php
while ($row = mysqli_fetch_assoc($result))
{
echo"<div class=\"modelfilter_td\" id=\"modelfilter_td\">";
echo"<input type=\"checkbox\" id = \"$row[ModelID]\"
name = \"selectedModels[]\"value =\"$row[Model]\" onclick=\"chkcontrol.apply(this);\">";
echo "$row[Model]";
echo"</div>";
}
echo"</div>";
I want to do the following :
when the checkbox is checked, it stays visible, even if it is not in the search terms of the filter field.
when the checkbox is checked , the background color is changed.
the checkbox and the title for the checkbox is held within a div, I want to allow the user to click anywhere in the div to allow toggling of the checkbox.
Anyone start me ont the right track with this?
EDIT: here is a solution to problem "3."
<script language="javascript">
$(document).ready(function(){
$(".modelfilter_td").click(function(e){
var chk = $($(this).find("input[type='checkbox']"));
if(chk.attr('checked'))
{
chk.attr('checked',false);
}else{
chk.attr('checked',true);
}
});
});
This is not a solution for you problem, but a recommendation on php-usage in html context:
<div id="ModelFilter">
<?php while ($row = mysqli_fetch_assoc($result)): ?>
<div class="modelfilter_td" id="modelfilter_td">
<input
type="checkbox"
id="<?php echo $row['ModelID'] ?>"
name="selectedModels[]"
value="<?php echo $row['Model'] ?>"
onclick="chkcontrol.apply(this);"
>
<?php echo $row['Model'] ?>
</div>
<?php endwhile ?>
</div>
This enables most IDEs to deal with HTML-autocompletion and code-analysis.

PHP jQuery Post - returns too much HTML

I have a problem when using jQuery Post, the PHP returns all the HTML of the page up to the newly created HTML, rather then just the HTML that is output by the PHP.
As an example say the php outputs: '<div>Some Content</div>'
Then the jQuery Post returns: '<html><head>...all the head content...</head><body>...other content...<div>Some Content</div>'
Here's the jQuery (link to full code: http://pastebin.com/U7R8PqX1):
jQuery("form[ID^=product_form]").submit(function() {
var current_url = js_data.current_url;
form_values = jQuery(this).serialize();
jQuery.post(current_url+"?ajax=true", form_values, function(returned_data) {
jQuery('div.shopping-cart').html(returned_data);
}
});
return false;
});
And here's the PHP (version 5.3.6 - link to full code: http://pastebin.com/zjSUUbmL):
function output_cart()
{
ob_start();
echo $this->output_cart_html();
$output = ob_get_contents();
ob_end_clean();
echo $output;
exit();
}
function output_cart_html() {
if (!isset($_SESSION['cart_items']))
{
$output = '<div class="cart_content faded">BASKET - Empty</div>';
return $output;
} else {
$total_items = 0;
$total_items = 0;
$items_in_cart = $_SESSION['cart_items'];
// work out total price and total items
foreach ($items_in_cart as $item_in_cart) {
$total_items += $item_in_cart['quantity'];
$total_price += floatval($item_in_cart['updated_price']*$item_in_cart['quantity']);
}
$template_url = get_bloginfo('template_directory');
$output = '';
$output_price = $dp_shopping_cart_settings['dp_currency_symbol'].number_format($total_price,2);
if($total_items == 1){ $item_text = ' Item'; } else { $item_text = ' Items'; }
$output .= $total_items . $item_text;
$output .= ' <span class="bullet"></span> Total '.$output_price;
// empty cart btn
$output .= '<form action="" method="post" class="empty_cart">
<input type="hidden" name="ajax_action" value="empty_cart" />
<span class="emptycart"> <img src="'.$template_url.'/images/empty.png" width="9" height="9" title="Empty Your Items" alt="Empty Your Items" />Empty Your Cart</span>
</form>';
// check out btn
$output .= ' <span class="bullet"></span> <span class="gocheckout">'.$this->output_checkout_link().' </span>';
return $output;
}
}
You need to check if the form has been posted yet with the PHP. To do this, just check if the 'ajax' parameter is there, or send another $_GET variable if you wish (by adding &anotherparementer=1 to the end of the jQuery post URL). Example:
<?php
if(isset($_GET['ajax'])) {
//your PHP code here that submits the form, i.e. the functions that you have, etc.
}
else {
?>
<html>
<head>
head content here...
</head>
<body>
body content here...
</body>
</html>
<?php
}
?>
I hope this helps.
Ok it turns out my problem was with the way Wordpress processes AJAX requests. The plugin I was building on top of was using AJAX but didn't have these issues (I'm not sure why maybe because they were using eval), so I hadn't realised there was a correct way of using AJAX with Wordpress. Here's a bunch of information if anyone else has similar problems:
http://codex.wordpress.org/AJAX_in_Plugins
http://byronyasgur.wordpress.com/2011/06/27/frontend-forward-facing-ajax-in-wordpress/
(this one really helped me out, a very simple example that I was able to adapt)
-- sorry I couldn't post more links because I'm too new on this site, but check out the links at the bottom of the first link above, especially the '5 Tips'.
As I'm using classes I instantiated the class from the index file of my plugin with this:
if ($_POST['action'] === 'action_name') {
$class_obj = new \namespace_name\class();
add_action('wp_ajax_action_name', array($class_obj, 'method_name'));
add_action('wp_ajax_nopriv_action_name', array($class_obj, 'method_name'));
}

PHP and jquery, help passing PHP variable to javascript

I am trying to allow the users of my website, to upload images and then select one to be a back image, the uploading works fine, but I have a problem in my controller or view I think, i would appreciate it some could help me out,
VIEW:
<div id="background-select">
<?php
$count = 0;
if(isset($special)) {
foreach ($special as $row) {
print '<div class="select">';
print "<a class='background_btn' href='index.php/home/set_background/".$row['background_id']."'>$count</a>";
print '</div>';
$background = $row['background_name'];
echo $background;
}
}
if(isset($generic)) {
foreach ($generic as $row) {
print '<div class="select">';
print "<a class='background_btn' href='index.php/home/set_background/".$row['background_id']."'>$count</a>";
print '</div>';
$background = $row['background_name'];
echo $background;
}
}
if(isset($user_background)) {
foreach ($user_background as $row) {
print '<div class="select">';
print "<a class='background_btn' href='index.php/home/set_background/".$row['background_id']."'>$count</a>";
print '</div>';
$background = $row['background_name'];
echo $background;
}
}
?>
</div>
<script type="text/javascript">
$("a.background_btn").click(function(ev){
ev.preventDefault();
alert("hello");
var url = $(this).attr("href");
alert(url);
$.ajax ({
url : url,
type: "POST",
success : function (html) {
alert("<?php echo $background; ?>")
$('#wrapper').css('background', 'url(/media/uploads/backgrounds/<?php echo $background; ?>)');
}
})
});
</script>
<div id="wrapper">
CONTROLLER:
public function set_background() {
$this->load->model('image_model');
if($query = $this->image_model->get_background_by_id($this->uri->segments[3])) {
//die(var_dump($query));
foreach ($query as $row) {
$data['background'] = $row['background_name'];
}
}
$this->load->view('template/background-select', $data);
}
The problem is that I can only set the background to the first returned value for example if the first loop return $background to = red.png then I cannot get anything but red.png to load in.
Can any one suggest a solution?
You appear to load a background using AJAX. However, you set the value of $background in the initial request, and the 'success' method of your AJAX call never uses the returned HTML. Only the background that was originally set when the page was first loaded. You should make sure your AJAX call returns the background, so you can use that in your javascript. Don't try to set the background in your 'success' method using PHP.
Also, not sure about this though, but your controller seems to set a single property $data['background'], overwriting it every iteration of the foreach instead of creating an array or hashmap.
I think you should keep separate PHP and JS. After completed upload process you can redirect (or show dynamically by using AJAX) uploaded images page. After user clicked an uploaded image just change background attribute maybe like this:
<div id="back">
<img src="foo.jpg" alt="..." />
<img src="bar.jpg" alt="..." />
...
</div>
$(function(){
$("#back img").bind("click", function(e){
var src = $(this).attr("src");
$("#back").css({"background-image": "url(/images/" + src + ")"});
});
});

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