Set site title & tagline with wp.config or function.php

Currently I can change Site Title & Tagline in Settings >> General but someone attack and remove it.

So now I want to set these via function.php or wp-config.php

Any Idea?

Answers:

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Method 1

These fields have the keys 'blogname' and 'blogdescription' respectively in the options table.

I’m not sure exactly why you need to do this as it seems like a priority to secure your site and be able to update it through the dashboard yourself, but you can update them easily from functions.php with update_option, e.g.:

update_option( 'blogname', "site title goes here" );

update_option( 'blogdescription', "site tagline does here" );

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