所有的函数都写在主题下面的functions.php文件夹里
1、wordpress 获取文章插入的第一张图片
<?php
function catch_that_image() {
global $post, $posts;
$first_img = '';
ob_start();
ob_end_clean();
$output = preg_match_all('/<img.+src=[\'"]([^\'"]+)[\'"].*>/i', $post->post_content, $matches);
$first_img = $matches [1] [0];
if(empty($first_img)){
$first_img = '';//bloginfo('template_url'). '/images/default-thumb.jpg';
}
else{
$first_img = '<img src="'.$first_img.'"> ';
}
return $first_img;
}
调用
<a href="<?php the_permalink(); ?>" title="<?php the_title(); ?>"><img src="<?php echo catch_that_image() ?>" alt="<?php the_title(); ?>"/></a>
wordpress 获取文章插入的所有图片
function all_img($soContent){
$soImages = '~<img [^\>]*\ />~';
preg_match_all( $soImages, $soContent, $thePics );
$allPics = count($thePics);
if( $allPics > 0 ){
foreach($thePics[0] as $v){
echo $v;
}
}else {
echo "<img src='";
echo bloginfo('template_url');
echo "/images/thumb.gif'>";
}
}
调用
<?php all_img($post->post_content);?>