custom excerpt length wordpress

To customize the length we need to add the below-given function in "functions.php".

// Custom length for excerpt


function custom_excerpt_length(){
    return 15;
}


add_filter('excerpt_length', 'custom_excerpt_length');

Now in "index.php" where we have posts list in place of "the_content()" use this

echo get_the_excerpt()

That's it. Hope it helped