Personal notes
Create shortcode that can be used in posts or pages like this:
[newshortcode]Add to functions.php
<?php
function newshortcode_shortcode() {
if(is_admin()) return;
$post_title = get_the_title();
ob_start();
?>
<?php echo $post_title; ?>
<div>Some text</div>
<?php
$output = ob_get_contents();
ob_end_clean();
return $output;
}
add_shortcode('newshortcode', 'newshortcode_shortcode');
?>WordPress 5.2 introduces a new function called wp_body_open(). This function triggers wp_body_open action and useful to place code after the opening of the body element.
add_action('wp_body_open', 'body_scripts');
function body_scripts() {
?>
<script>console.log('test here');</script>
<?php
}In your theme’s functions.php:
function inline_scripts() {
?>
<script>console.log('test here');</script>
<?php
}
// Add hook for admin <head></head>
add_action( 'admin_head', 'inline_scripts' );
// Add hook for front-end <head></head>
add_action( 'wp_head', 'inline_scripts' );wp_get_attachment_image function can accept four values as you can see:
wp_get_attachment_image( int $attachment_id, string|array $size = 'thumbnail', bool $icon = false, string|array $attr = '' )Examples
<?php echo wp_get_attachment_image( get_the_ID(), array('700', '600'), false, array( "class" => "img-fluid" ) ); ?><?php echo wp_get_attachment_image( 5151, 'medium', false, array( "class" => "img-fluid" ) ); ?>Display the featured image of a post in a tag.
echo get_the_post_thumbnail();Additionally if you want to grab a specific size for the featured image you can fill out the second argument with an image size. Also can add class onto image.
echo get_the_post_thumbnail( get_the_ID(), 'medium', array('class' => 'img-fluid') );Return the URL of the featured post image.
echo get_the_post_thumbnail_url( get_the_ID(), 'medium' );wp_deregister_style( 'kalium-bootstrap-css' );
wp_register_style( 'kalium-bootstrap-css', "https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css", array(), '5.1.3' );mysql -u username -p new_database < data-dump.sqlmv -i oldname newnamecp -r /etc/ /var/tmp/backup/mkdir foldername