If you are WordPress Plugin Deveveloper you may need to add some text or code inside the <head>
tag
Here is how you can do it:
You can use the wp_head
action hook which is triggered within the <head></head>
section of the theme’s header.php
template by the wp_head()
function.
First create the custom function
function fn_head_script() {
if ( is_page() ) {
?>
<script>
alert('Page is loading...');
</script>
<?php
}
}
The you can call the action hook
add_action('wp_head', 'fn_head_script');
This is very usefull when you are going to develop custom styles and structured data markup