How do I prevent PHP code inserts in a .js file from being formatted?

Question

Visual Studio Code

I use VSCode and in .js files I have inserts of PHP code of the form When saving, VSCode formats php insert as JS code and it breaks. Can I tweak the settings to prevent this from happening? ps when building through webpack php, the code is replaced with its value using loader
var a = <?php echo json_encode($_SERVER); ?>;