WordPress D8 主题当中截取文章首图并显示的函数

取自 WordPress D8 主题;

路径 theme\d8\modules ;

1. if ( ! function_exists( 'deel_thumbnail' ) ) :
2. function deel_thumbnail() {
3. global $post;
4. if ( has_post_thumbnail() ) {
5. $domsxe = simplexml_load_string(get_the_post_thumbnail());
6. $thumbnailsrc = $domsxe->attributes()->src;
7. echo '';
8. } else {
9. $content = $post->post_content;
10. preg_match_all('//sim', $content, $strResult, PREG_PATTERN_ORDER);
11. $n = count($strResult[1]);
12. if($n > 0){
13. echo '';
14. }else {
15. echo '';
16. }
17. }
18. }
19. endif;

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