Skip to content

Instantly share code, notes, and snippets.

@dipakcg

dipakcg/functions.php

Last active Jan 25, 2021
Embed
What would you like to do?
📦 WordPress : Set first image as featured image
// Get the first embedded image from the content
function catch_the_first_image() {
global $post, $posts;
$first_img = '';
ob_start();
ob_end_clean();
$output = preg_match_all('/<img.+?src=[\'"]([^\'"]+)[\'"].*?>/i', $post->post_content, $matches);
if ( isset( $matches[1][0] ) ) {
$first_img = $matches[1][0];
}
return $first_img;
}
// Set auto featured image
function set_featured_image() {
global $post;
$post_id = $post->ID;
if ( strlen( catch_the_first_image() ) >= 5 && get_the_post_thumbnail( $post_id ) == '' ) {
$image_url = get_site_url() . catch_the_first_image();
$arrContextOptions = array(
"ssl" => array(
"verify_peer"=>false,
"verify_peer_name"=>false,
),
);
$upload_dir = wp_upload_dir();
if ( is_ssl() ) {
$image_data = file_get_contents( $image_url, false, stream_context_create( $arrContextOptions ) );
}
else {
$image_data = file_get_contents( $image_url );
}
$filename = basename( $image_url );
if( wp_mkdir_p( $upload_dir['path'] ) ) {
$file = $upload_dir['path'] . '/' . $filename;
}
else {
$file = $upload_dir['basedir'] . '/' . $filename;
}
file_put_contents( $file, $image_data );
$wp_filetype = wp_check_filetype( $filename, null );
$attachment = array(
'post_mime_type' => $wp_filetype['type'],
'post_title' => sanitize_file_name( $filename ),
'post_content' => '',
'post_status' => 'inherit'
);
$attach_id = wp_insert_attachment( $attachment, $file, $post_id );
require_once( ABSPATH . 'wp-admin/includes/image.php' );
$attach_data = wp_generate_attachment_metadata( $attach_id, $file );
wp_update_attachment_metadata( $attach_id, $attach_data );
set_post_thumbnail( $post_id, $attach_id );
}
}
// Use it temporary to generate all featured images
add_action('the_post', 'set_featured_image');
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment