West/Sniffs/Functions/GlobalFunctionSniff.php
public function process(File $phpcsFile, $stackPtr)
    {
        $tokens = $phpcsFile->getTokens();

        if (empty($tokens[$stackPtr]['conditions']) === true) {
            $functionName = $phpcsFile->getDeclarationName($stackPtr);
            if ($functionName === null) {
                return;
            }

            // Special exception for __autoload as it needs to be global.
            if ($functionName !== '__autoload') {
                $error = 'Global function "%s" is not allowed';
                $data  = [$functionName];
                $phpcsFile->addError($error, $stackPtr, 'Found', $data);
            }
        }
    }
public function process(File $phpcsFile, $stackPtr)
    {
        $tokens = $phpcsFile->getTokens();

        if (empty($tokens[$stackPtr]['conditions']) === true) {
            $functionName = $phpcsFile->getDeclarationName($stackPtr);
            if ($functionName === null) {
                return;
            }

            // Special exception for __autoload as it needs to be global.
            if ($functionName !== '__autoload') {
                $error = 'Global function "%s" is not allowed';
                $data  = [$functionName];
                $phpcsFile->addError($error, $stackPtr, 'Found', $data);
            }
        }
    }
{@inheritdoc}