ワードプレス
最初の一枚を取得
★投稿の最初の1枚を取得。ない場合はdefault.jpg
function.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)){ //Defines a default image $first_img = "/images/default.jpg"; } return $first_img; }
code
<img src="<?php echo catch_that_image(); ?>" />