*/ public function register() { return [\T_EMPTY]; } /** * Processes this test, when one of its tokens is encountered. * * @since 7.0.4 * * @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('5.4') === false) { return; } $tokens = $phpcsFile->getTokens(); $open = $phpcsFile->findNext(Tokens::$emptyTokens, ($stackPtr + 1), null, true, null, true); if ($open === false || $tokens[$open]['code'] !== \T_OPEN_PARENTHESIS || isset($tokens[$open]['parenthesis_closer']) === false ) { return; } $close = $tokens[$open]['parenthesis_closer']; $nestingLevel = 0; if ($close !== ($open + 1) && isset($tokens[$open + 1]['nested_parenthesis'])) { $nestingLevel = \count($tokens[$open + 1]['nested_parenthesis']); } if (TokenGroup::isVariable($phpcsFile, ($open + 1), $close, $nestingLevel) === true) { return; } $phpcsFile->addError( 'Only variables can be passed to empty() prior to PHP 5.5.', $stackPtr, 'Found' ); } }