/**
* Processes this test, when one of its tokens is encountered.
*
* @param PHP_CodeSniffer_File $phpcsFile The file being scanned.
* @param int $stackPtr The position of the current token in the
* stack passed in $tokens.
*
* @return void
*/
protected function processVariable(PHP_CodeSniffer_File $phpcsFile, $stackPtr)
{
$tokens = $phpcsFile->getTokens();
$varName = ltrim($tokens[$stackPtr]['content'], '$');
$phpReservedVars = array('_SERVER', '_GET', '_POST', '_REQUEST', '_SESSION', '_ENV', '_COOKIE', '_FILES', 'GLOBALS', 'http_response_header', 'HTTP_RAW_POST_DATA', 'php_errormsg');
// If it's a php reserved var, then its ok.
if (in_array($varName, $phpReservedVars) === true) {
return;
}
// There is no way for us to know if the var is public or private,
// so we have to ignore a leading underscore if there is one and just
// check the main part of the variable name.
$originalVarName = $varName;
if (substr($varName, 0, 1) === '_') {
$objOperator = $phpcsFile->findPrevious(array(T_WHITESPACE), $stackPtr - 1, null, true);
if ($tokens[$objOperator]['code'] === T_DOUBLE_COLON) {
// The variable lives within a class, and is referenced like
// this: MyClass::$_variable, so we don't know its scope.
$inClass = true;
} else {
$inClass = $phpcsFile->hasCondition($stackPtr, array(T_CLASS, T_INTERFACE, T_TRAIT));
}
if ($inClass === true) {
$varName = substr($varName, 1);
}
}
if (PHP_CodeSniffer::isCamelCaps($varName, false, true, false) === false) {
$error = 'Variable "%s" is not in valid camel caps format';
$data = array($originalVarName);
$phpcsFile->addError($error, $stackPtr, 'NotCamelCaps', $data);
}
}