Do_action( 'wp_head' );

function hook_javascript() {
    ?>
        <script>
            alert('Page is loading...');
        </script>
    <?php
}
add_action('wp_head', 'hook_javascript');

Source: developer.wordpress.org

Do_action( 'wp_head' );

function hook_css() {
    ?>
        <style>
            .wp_head_example {
                background-color : #f1f1f1;
            }
        </style>
    <?php
}
add_action('wp_head', 'hook_css');

Source: developer.wordpress.org

Similar codes

4 votes261 views10 answers
Play snake
Html
0 vote242 views1 answer
Html franc symbol
Html
5 votes245 views2 answers
Display rond logo in angular
Html
1 vote241 views1 answer
Line break not working html
Html
51 votes251 views10 answers
Html
Html
1 vote263 views1 answer
Html first line indent
Html
0 vote209 views1 answer
Html ad
Html
17 votes254 views6 answers
Collapse bootstrap 4
Html
0 vote242 views1 answer
Metadata edge
Html
0 vote248 views1 answer
MQ is not defined,
Html