Articles
Echo Images inside a Post into the Loop
Here is a useful trick. Want to call or echo an image into your blog post with our using the custom fields? Well this could be tricky, but I know of a way.
All you have to do is print these lines of code into your
index.php or home.php inside the loop:
<?php
$id =$post->ID;
$the_content =$wpdb->get_var("SELECT post_content FROM $wpdb->posts WHERE ID = $id");
$home = get_option('home');
$pattern = '!<img.*?src="'.$home.'(.*?)"!';
preg_match_all($pattern, $the_content, $matches);
$image_src = $matches['1'][0]; ?>
then after write:
<?php if($image_src != '') { ?>
<a href="<?php echo the_permalink() ?>" rel="bookmark" title="Link to <?php the_title(); ?>"><?php the_title(); ?></a><br />
<a href="<?php the_permalink() ?>" rel="bookmark" title="<?php the_title(); ?>"><img src="<?php echo $image_src; ?>" alt="<?php the_title(); ?>" /></a>
<?php } ?>
That’s all! This will look for the first image in your post and echo it in the loop, could be used to show off those pretty thumbnails for the post..
Today let’s learn a simple quick trick on how to create a custom widget. For my example I will show you how I created my Showcase widget located in the middle, to the right of the posts.
First under your functions.php file type in the following:
<?php // Custom Widget
function MyCustomWidget() { ?>
<li class="widget">
<h2 class="heading">Latest Showcase</h2>
<ul>
<?php include(TEMPLATEPATH . '/includes/showcase.php'); ?>
</ul>
</li>
<?php }
register_sidebar_widget('The Custom Widget for Showcase', 'MyCustomWidget'); ?>
- Always make sure your code is between the
<?phpand?>for it to work. - Once we call the function, the rest is assuming html code that you may or may not need.
- For instance, you may just put in a picture and call it a day. But my code starts with
<li<because my sidebar’s start and end with<ul<. - Any way, once your done, just set the final “
register_sidebar_widget('the widget title', 'the name of the function');“
That’s it! Now you have a custom widget with what ever you want!
Here is a nifty trick for your comments.php template. If someone comes to your site and leaves a comment but doesn’t leave a url back to there site, the default link that is shown in place of the php code comment_author_url is the current page link.
That might not look good. So, here is a little trick that I just implemented into my site. Besides installing the twittar plugin and pulling Twitter avatars I wanted to use the image itself for the authors url like. But if the author doesn’t have a Twitter avatar or a Gravatar it will display a default Gravatar that I set. If the default Gravatar is shown, usually the author will not leave a url link.
I would like to link the image to Gravatar.com so that they can get an image attached to their email address. So.. here is the code:
<?php if($comment->comment_author_url != "") { ?>
<a href="<?php comment_author_url(); ?>"><?php gravatar(); ?></a>
<?php } else { ?>
<a href="http://gravatar.com" title="Get a Gravatar today!"><?php gravatar(); ?></a>
<?php } ?>
Ricardo Sousa, who writes for Smashing Magazine created a great plugin called Twittar.
This plugin will use someones Twitter Gravatar if their email address is not connected with a Gravatar.
For more info check out the full post at Twitter Avatars in Comments: A WordPress plugin
Image credit: Ricardo Sousa
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Austin
December 8, 2008 at 3:54 am
Assuming the image has been added using the WP uploader, here’s a way of doing the same thing using the WP API, which might have a performance advantage:
<?php $attachments = (array) get_children(array(‘post_parent’ => get_the_ID(), ‘post_type’ => ‘attachment’));
if ( ! empty( $attachments ) ) :
$attmt = array_shift($attachments);
$image_thumb = wp_get_attachment_thumb_url($attmt->ID); ?>
<a href=”<?php echo the_permalink() ?>” rel=”bookmark” title=”Link to <?php the_title(); ?>”><?php the_title(); ?></a><br />
<a href=”<?php the_permalink() ?>” rel=”bookmark” title=”<?php the_title(); ?>”><img src=”<?php echo $image_thumb; ?>” alt=”<?php the_title(); ?>” /></a>
<?php endif; ?>
frosty
December 8, 2008 at 10:59 am
Thanks for that one!
Picsbuzz
January 7, 2009 at 9:57 pm
This is great script, it helps me a lots!!! Thank you so much!!
I wonder if this script can grab the first image in the post which hosted on share host like: flickr or imagesharkus?
frosty
January 7, 2009 at 10:05 pm
Your welcome, I am not sure. If we could find out details to their database it may be possible.
Nick
January 15, 2009 at 12:38 pm
That can be useful
Nick’s last blog post..Montana Library
Thomas
August 10, 2009 at 11:00 am
Hi all,
First of all, very nice script. I noticed that the output was in html (ie, img src and thumbnailing).
Does anyone know of any snippet to be able to echo the image via php, without having to name the actual individual image file (eg. tree.jpg), and instead using a variable from a database that names photos in a directory.?
thanks
tom
Maor
September 5, 2009 at 5:33 pm
Thanks for the tip, liked it!
.-= Maor´s last blog ..וורדפרס 2.8+: איך לא להציג קטגוריות מסוימות בתפריט הצדדי? =-.