wp_head() function play a very important role in wordpress development. Mostly we use wp_head function to implement any new feature or to customize the existing functionality of the theme or plugin without change in their core files.
During override the core functionality of the wordpress or any plugins, we can use this function.
The basic role of wp_head() function is “Prints scripts or data in the head tag on the front end.”
The wp_head action hook is triggered within the
<head>/<head> section of the theme’s
header.php template by the wp_head() function.
Although this is theme-dependent, it is one of the most essential theme hooks, so it is widely supported. WordPress core uses this hook to perform many actions.
Example : For example if you want to add any tracking code in head of the website for all pages then by using hook action of wp_head() function, you can do it very easily.
add_action(‘wp_head’,’my_script_func()’)
if(!function_exists('my_script_func')):
function my_script_func()
{
// add your script code here
}
endif;
In same way if you want to add new css/js files into head section then you can easily add it using wp_head() action.
In case when you want to load some files only for specific pages not to all pages then you can define a condition within this function. Similarly there are many advantage of wp_head() function in wordpress development .
