*/ public function register() { return [ \T_DOUBLE_COLON, ]; } /** * Processes this test, when one of its tokens is encountered. * * @since 8.1.0 * * @param \PHP_CodeSniffer\Files\File $phpcsFile The file being scanned. * @param int $stackPtr The position of the current token in the * stack passed in $tokens. * * @return void */ public function process(File $phpcsFile, $stackPtr) { if (ScannedCode::shouldRunOnOrBelow('5.2') === false) { return; } $tokens = $phpcsFile->getTokens(); $prevNonEmpty = $phpcsFile->findPrevious(Tokens::$emptyTokens, ($stackPtr - 1), null, true); // Disregard `static::` as well. Late static binding is reported by another sniff. if ($tokens[$prevNonEmpty]['code'] === \T_SELF || $tokens[$prevNonEmpty]['code'] === \T_PARENT || $tokens[$prevNonEmpty]['code'] === \T_STATIC ) { return; } if ($tokens[$prevNonEmpty]['code'] === \T_STRING) { $prevPrevNonEmpty = $phpcsFile->findPrevious(Tokens::$emptyTokens, ($prevNonEmpty - 1), null, true); if ($tokens[$prevPrevNonEmpty]['code'] !== \T_OBJECT_OPERATOR && $tokens[$prevPrevNonEmpty]['code'] !== \T_NULLSAFE_OBJECT_OPERATOR ) { return; } } $phpcsFile->addError( 'Static class properties and methods, as well as class constants, could not be accessed using a dynamic (variable) classname in PHP 5.2 or earlier.', $stackPtr, 'Found' ); } }