How can I not highlight the display screen when writing PHP code after setting a theme in Sublime Text 3 for mac?

Sublime Text 3 for mac has no color display when writing PHP code after setting the theme

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Sublime Text 3 for mac has no color display when writing PHP code after setting the theme

Add If it still doesn’t work, then manually change it to php in the view and try it

You don’t even have the basics of