documentation/node_modules/prismjs/components/prism-php-extras.min.js

Prism.languages.insertBefore("php","variable",{this:{pattern:/\$this\b/,alias:"keyword"},global:/\$(?:GLOBALS|HTTP_RAW_POST_DATA|_(?:COOKIE|ENV|FILES|GET|POST|REQUEST|SERVER|SESSION)|argc|argv|http_response_header|php_errormsg)\b/,scope:{pattern:/\b[\w\\]+::/,inside:{keyword:/\b(?:parent|self|static)\b/,punctuation:/::|\\/}}});