Using WordPress ‘get_the_author_{$field}’ PHP filter

The get_the_author_{$field} WordPress PHP filter allows you to modify the value of the requested user metadata. The filter name is dynamic and depends on the $field parameter of the function.


add_filter( 'get_the_author_meta', function( $value, $user_id, $original_user_id ) {
    // your custom code here
    return $value;
}, 10, 3 );


  • $value (string) – The value of the metadata.
  • $user_id (int) – The user ID for the value.
  • $original_user_id (int|false) – The original user ID, as passed to the function.

More information

See WordPress Developer Resources: get_the_author_{$field}


Change display name to uppercase

This example changes the display name of the author to uppercase.

add_filter( 'get_the_author_display_name', function( $value, $user_id, $original_user_id ) {
    return strtoupper( $value );
}, 10, 3 );

Add prefix to user email

This example adds a prefix to the author’s email.

add_filter( 'get_the_author_user_email', function( $value, $user_id, $original_user_id ) {
    return 'prefix_' . $value;
}, 10, 3 );

Modify user URL

This example adds a custom path to the author’s URL.

add_filter( 'get_the_author_user_url', function( $value, $user_id, $original_user_id ) {
    return $value . '/custom-path';
}, 10, 3 );

Change author’s first name

This example changes the author’s first name to “John”.

add_filter( 'get_the_author_first_name', function( $value, $user_id, $original_user_id ) {
    return 'John';
}, 10, 3 );

Append text to author’s description

This example appends custom text to the author’s description.

add_filter( 'get_the_author_description', function( $value, $user_id, $original_user_id ) {
    return $value . ' - Custom text';
}, 10, 3 );