I have created a newsfeed in my magento site using Zend Framework. This works almost perfectly except, I want to retrieve only the first 3 entries on the rss. If I try to do this, the first 3 items are displayed on my site but the foreach loop continues to execute so excess spaces and html elements are added in my site. How can I retrieve only the first 3 entries of the rss? Here's how my code looks:
<?php $i = 0;
<?php $channel = new Zend_Feed_Rss('http://mydomain/newsfeed'); ?>
<?php foreach ($channel as $item):
<div>
if($i<3): ?>
<label>My feed title is: <?php echo $item->title; ?>
<?php endif; $i = $i + 1; ?>
</div>
<?php endforeach; ?>
I have about 10 entries on the newsfeed so if I execute something like this, I get the first 3 properly, then I get 7 excess labels with My feed title is:. I tried, using break but this broke my entire page so I can't use that. Can someone please guide me to the right direction?
you can try with for loop instead of foreach
for($i=0; $i<=min(3, count($channel->title)); $i++) {
$feed_title = $channel->title[$i];
// do something
}
hope this will sure solve your issue.
Related
I've successfully been able to count the number of posts within a loop before, but for some reason this time it won't work.
<?php $count = 0; if (have_posts () ) { while (have_posts()) { the_post(); $count++; ?>
<div class="post-<?php echo $count; ?>"></div>
<?php } } ?>
Anything Im missing?
UPDATE
After talking to #FlashThunder about this problem. it seems that putting the beginning of the loop in the home.php template and using get_template_part() for the posts that are to be counted won't work unless they are in the same template, otherwise we would need to use global $count. After putting all of the php in the same template, the posts counted and applied the numeric class to the div's like I wanted.
I need a pagination for the output that is generated by a WordPress plugin. The plugin retrieves all products of a certain productgroup from the datebase. The basic code is:
<?php
foreach ((array)$this->view['data']['produkte'] as $p)
{ ?>
...some html code here
}
?>
where $p is an multi-dimensional array that contains the data for the single product.
I'd like to limit the output to, say, 10 products and create a simple pagination for that. The plugin is quite complex and uses nested templates, therefore a custom query is probably not an option in this case.
Would be great if somebody could point me in the right direction. Thank you!
Here's the final code. Thank you very much for your valuable help!!
<?php
$nb_elem_per_page = 3;
$page = isset($_GET['seite'])?intval($_GET['seite']-1):0;
$data = (array)$this->view['data']['produkte'];
$number_of_pages = intval(count($data)/$nb_elem_per_page)+2;
$page_no = $_REQUEST['seite'];
foreach (array_slice($data, $page*$nb_elem_per_page, $nb_elem_per_page) as $p)
{ ?> some HTML here... <?php } ?>
<?php if (count($data) > $nb_elem_per_page) { ?>
<ul id='paginator'>
<?php
for($i=1;$i<$number_of_pages;$i++){
if ($i == $page_no) {?>
<li><?php echo $i ?></li>
<?php }
else { ?>
<li><?php echo $i ?></li>
<?php }} ?>
</ul>
<?php { ?>
Since the default url contains already a query string, I had to modify the code a litte bit. I don't want the current site to have a link in the pagination. This gets me the number of the pagination query string:
$page_no = $_REQUEST['seite'];
I can then easily change the pagination links with a simple if-statement:
if ($i == $page_no) {...}?>
Thanks again!
You may have to tinker this around a bit but that will be something like that :
$nb_elem_per_page = 10;
$page = isset($_GET['page'])?intval($_GET['page']-1):0;
$data = (array)$this->view['data']['produkte'];
$number_of_pages = intval(count($data)/$nb_elem_per_page)+1;
<?php foreach (array_slice($data, $page*$nb_elem_per_page, $nb_elem_per_page) as $p) { ?>
...some html code here
<?php} ?>
<ul id='paginator'>
<?php
for($i=1;$i<$number_of_pages;$i++){?>
<li><a href='./?page=<?=$i?>'>$i</a></li>
<?php}?>
</ul>
You can use array_splice (twice) to get a new array with only the product you need.
Say you want to show 10 items per page and start at page 3:
<?php
$all_products = (array)$this->view['data']['produkte'];
$all_products = array_splice($all_products, 20); //select where to start
$all_products = array_splice($all_products, 0, count($all_products) - 10); //select how many products to show
foreach ($all_products as $p) {
//...some html code here
}
?>
(not tested)
Edit: #Loïc's answer is better as it only uses one array_splice.
I'm trying to pull information from instagram and twitter, and display the information as a collection of square and rectangle boxes arranged on screen.
I was using a foreach statement to display the content, but because the containing divs are not consistent in size, I have to end the foreach statement and start a new one. The content of the new foreach is exactly the same as the content of the previous. I'm not sure if I'm going about this the right way and would appreciate any push in the right direction.
The block of code below displays the first 4 most recent instagram photos.
<?php $i = 0; foreach ($instagram_data->data as $latest_post): if (++$i == 5) break; ?>
<div class="engage-block"><img src="<?= $latest_post->images->standard_resolution->url ?>"></div>
<?php endforeach ?>
After that, I display the latest twitter content.
<div class="engage-horizontal engage-block"><span>"<?php echo $latest_tweet->text ?>"</span></div>
And then I repeat another foreach similar to the first to display more instagram content. This however repeats the exact same content from the code above (shows the latest 4 photos instead of the 4 photos after the original photos).
You could put a variable in the foreach to make the twitter div if it's the fifth, like this
<?php
$i = 0; foreach ($instagram_data->data as $latest_post){
?>
if ($i==5){?>
<div class="engage-horizontal engage-block"><span>"<?php echo $latest_tweet->text ?>"</span></div>
$i=0;
}
else{?>
<div class="engage-block"><img src="<?= $latest_post->images->standard_resolution->url ?>"></div>
<?php
}
$i++;
} ?>
I am new to php and I am trying to create a simple bit of code that prints a "last" class at the start of the last element in a "while" loop. There are only two items in the loop (blog excerpts) hence why I have tried below with the if ($i == 1)... Thanks for any help.
Here is my code so far - which only returns the p
<?php
$i = 0;
if($i == 1) {
echo '<p class="last">';
}
else {
echo '<p>';
}
?>
EDIT:
Thanks for the help so far. Greatly appreciated - I have provided a bit more information below (I posted late at night, so I realise I haven't been all that clear).
This is the full piece of code I am trying to write. It is pulling blog excerpts from Wordpress - currently limited to 2 blog articles.
<?php
$posts = new WP_Query('showposts=2');
while ( $posts->have_posts() ) : $posts->the_post();
?>
<p><?php echo the_title(); ?><br/>
<?php echo substr(get_the_excerpt(), 0,200); ?>... Read More</p>
<?php endwhile; ?>
<?php wp_reset_query(); ?>
I am wanting to add the class "last" to the p at the start of line 5 - for the last blog except only.
Thanks again.
Nick's answer says almost all that needs to be said.
The only thing I might add is a slight variation to save duplication particularly if the the contents of your paragraph tags is more complicated.
This might be better done with the following tweak on Nick's code:
<style>
#contents p:last-child {
PUT CONTENTS OF CLASS HERE
}
</style>
<body>
<div id="#contents">
<?php
$numLoops = 2;
$ctext=""
for($i=0; $i<$numLoops; $i++) {
$info="whatever";
if($i == (numLoops-1)) {
$ctext=' class="last"';
}
echo "<p${ctext}>${info}</p>\n";
}
?>
</div>
</body>
Cheers
So you have two paragraphs, and you want to apply the class "last" to the last one? Sounds like this is better handled with CSS
<style>
#contents p:last-child {
PUT CONTENTS OF CLASS HERE
}
</style>
<body>
<div id="#contents">
<p> first info</p>
<p> last info </p>
</div>
</body>
OR if you want to learn about loops
<?php
$numLoops = 2;
for($i=0; $i<$numLoops; $i++) {
if($i == (numLoops-1)) {
echo '<p class="last">';
} else {
echo '<p>';
}
}
What we are doing here with the for loop is initially setting the variable $i=0; then setting a test that says keep looping as long as the variable is less than the number of loops we want do do. Next we are setting what to do each loop, in this case we increment our variable by one each time.
First loop
i=0, we see that 0 is < 2 so we continue
Second loop
We execute the $i++ so we increment $i by 1 from 0 to $i=1,
we test and see $i=1 is still less than 2 so we continue.
Third attempted loop
We increment $i by 1 and get $i=2.
We test to see if this is less than 2, but it is NOT so we do not execute code in the loop
The main issue is that you don't have a loop in your code, and if you did you aren't incrementing your variable $i
This is probably a stupid gotcha that I'm overlooking but I'm hoping one of you can help me!
I've got a loop to list a grid of Products in my DB.
So far so good, everything is displaying roughly OK except this one little issue.
Within a list I'm doing the following:
<ul>
<?php $i=0; foreach ($products as $product) : $i++; ?>
<li <?php
if(($i%4) ==0){
echo 'class="last"';
} elseif($i%2==0){
echo 'class="second"';
}
?>>
// Then I've got the image thumbnail etc coming in....
All looks good except for the LAST row...
So for instance if I have 8 products... the first 7 will display on the page correctly, but then there is a gap at the end where the 8th product moves onto the next page.
At first I thought it was CSS widths or something but it's not. Even if I have 20 products...always the last row only shows 3 across and puts the last product on the next page.
Any ideas anyone?
Cheers M
<ul>
<?php $i=count($products); ?>
<li
<?php
if(($i%4) ==0){
echo 'class="last"';
} elseif($i%2==0){
echo 'class="second"';
}
?>>
Let's try it..