cristiansans (owner)

Revisions

gist: 183991 Download_button fork
public
Public Clone URL: git://gist.github.com/183991.git
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wp image functions #
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//return the first image, <img/> tag and all.
function first_image($width=100,$height=100,$zoomcrop=1){
	$timthumb_url = get_first_image($width, $height, $zoomcrop);
	if(isset($timthumb_url)){
		?>
		<a href="<?php the_permalink()?>" class="thumbnail" title="Links to: <?php the_title()?>">
			<img src="<?php echo $timthumb_url?>" alt="<?php the_title() ?>" class="thumbnail"/>
		</a>
		<?php
	}
}
 
//return just the src for the first image whether that be in the content or an attachment
function get_first_image($width=100,$height=100,$zoomcrop=1){
	$tn_src = get_first_content_image();
	if (!isset($tn_src)) //no image? try getting an attached image instead (native media galleries inserted into posts use attachments)
		$tn_src = get_first_attachment();
 
	if(isset($tn_src))
		$timthumb_url = get_bloginfo('template_url').'/scripts/timthumb.php?src='.$tn_src.'&h='.$height.'&w='.$width.'&zc='.$zoomcrop;
	else
		unset($timthumb_url);
 
	return $timthumb_url;
}
 
//return just the src for the first image buried in the post's textual content.
function get_first_content_image() {
	global $post, $posts;
	$first_img = '';
	$url = get_bloginfo('url');
	ob_start();
	ob_end_clean();
	$output = preg_match_all('/<img.+src=[\'"]([^\'"]+)[\'"].*>/i', $post->post_content, $matches);
	$first_img = $matches [1] [0];
 
	$not_broken = @fopen("$first_img","r"); // checks if the image exists
	if(empty($first_img) || !($not_broken)){ //Defines a default image
		unset($first_img);
	}else{
		$first_img = str_replace($url, '', $first_img);
	}
	return $first_img;
}
 
//return just the src for the first image attachment
function get_first_attachment(){
	$querystr =
	"
		SELECT
				wp_posts.post_excerpt AS 'imageTitle'
			,	wp_posts.guid AS 'imageGuid'
		FROM
			wp_posts
		WHERE
				wp_posts.post_parent = ".get_the_ID()."
			AND	wp_posts.post_type = \"attachment\"
		ORDER BY \"menu_order\"
		LIMIT 1
	";
	global $wpdb;
	$url = get_bloginfo('url');
 
	$post_item = $wpdb->get_row($querystr);
	$first_attachment = $post_item->imageGuid;
 
	$not_broken = @fopen("$first_attachment","r"); // checks if the image exists
	if(empty($first_attachment) || !($not_broken)){ //Defines a default image
		unset($first_attachment);
	}else{
		$first_attachment = str_replace($url, '', $first_attachment);
	}
 
	return $first_attachment;
}