The block_header_area() WordPress PHP function is used to print the header block template part.
Usage
This function can be utilized in your theme’s header.php file to load a custom header block.
block_header_area();
Once you call this function, it prints out the header block template part.
Parameters
This function does not have any parameters.
More information
See WordPress Developer Resources: block_header_area()
Examples
Default Usage
You can simply use the function in the header part of your theme to load a custom header block.
/* This line of code will print the header block template part. Just place it where you want your header block to be displayed. */ block_header_area();
Conditional Usage
You can use this function within a conditional statement to control when the header block is displayed.
/*
This will print the header block template part only if the function exists,
thus providing a fallback for older versions of WordPress.
*/
if ( function_exists( 'block_header_area' ) ) {
block_header_area();
}
Using with Actions
You can also use it with WordPress actions to dynamically insert the header block in different locations.
/* This will attach the block_header_area function to the 'get_header' action, so the header block is printed whenever 'get_header' is called. */ add_action( 'get_header', 'block_header_area' );
Overriding in a Child Theme
If you’re working with a child theme and want to change the header block, you can override the function in your child theme.
/*
In your child theme's functions.php file, redefine the function.
This new definition will override the parent theme's definition.
*/
function block_header_area() {
// Your custom code here
}
Inside a Hooked Function
It can be used inside another function, which you can then hook into a specific action or filter.
/*
This creates a function that calls block_header_area,
then hooks that function into the 'wp_head' action.
*/
function my_custom_header() {
block_header_area();
}
add_action( 'wp_head', 'my_custom_header' );