getTokens(); if ($tokens[$variablePointer]['content'] !== $tokens[$variableToCheckPointer]['content']) { return false; } if ($tokens[$variableToCheckPointer - 1]['code'] === T_DOUBLE_COLON) { $pointerAfterVariable = TokenHelper::findNextEffective($phpcsFile, $variableToCheckPointer + 1); return $tokens[$pointerAfterVariable]['code'] === T_OPEN_PARENTHESIS; } return !ParameterHelper::isParameter($phpcsFile, $variableToCheckPointer); } public static function isUsedInCompactFunction(File $phpcsFile, int $variablePointer, int $stringPointer): bool { $tokens = $phpcsFile->getTokens(); $stringContent = $tokens[$stringPointer]['content']; if (strtolower($stringContent) !== 'compact') { return false; } $parenthesisOpenerPointer = TokenHelper::findNextEffective($phpcsFile, $stringPointer + 1); if ($tokens[$parenthesisOpenerPointer]['code'] !== T_OPEN_PARENTHESIS) { return false; } $variableNameWithoutDollar = substr($tokens[$variablePointer]['content'], 1); for ($i = $parenthesisOpenerPointer + 1; $i < $tokens[$parenthesisOpenerPointer]['parenthesis_closer']; $i++) { if (preg_match('~^([\'"])' . $variableNameWithoutDollar . '\\1$~', $tokens[$i]['content']) !== 0) { return true; } } return false; } public static function isUsedInScopeInString(File $phpcsFile, string $variableName, int $stringPointer): bool { $tokens = $phpcsFile->getTokens(); $stringContent = $tokens[$stringPointer]['content']; if (preg_match('~(\\\\)?(' . preg_quote($variableName, '~') . ')\b~', $stringContent, $matches) === 1) { if ($matches[1] === '') { return true; } /** @phpstan-ignore-next-line */ if (strlen($matches[1]) % 2 === 1) { return true; } } $variableNameWithoutDollar = substr($variableName, 1); return preg_match('~\$\{' . preg_quote($variableNameWithoutDollar, '~') . '(<=\}|\b)~', $stringContent) !== 0; } private static function isUsedInScopeInternal( File $phpcsFile, int $scopeOwnerPointer, int $variablePointer, ?int $startCheckPointer ): bool { $tokens = $phpcsFile->getTokens(); if ($tokens[$scopeOwnerPointer]['code'] === T_OPEN_TAG) { $scopeCloserPointer = count($tokens) - 1; } elseif ($tokens[$scopeOwnerPointer]['code'] === T_FN) { $scopeCloserPointer = $tokens[$scopeOwnerPointer]['scope_closer']; } else { $scopeCloserPointer = $tokens[$scopeOwnerPointer]['scope_closer'] - 1; } if ($tokens[$scopeOwnerPointer]['code'] === T_OPEN_TAG) { $firstPointerInScope = $scopeOwnerPointer + 1; } elseif ($tokens[$scopeOwnerPointer]['code'] === T_FN) { $firstPointerInScope = $tokens[$scopeOwnerPointer]['scope_opener']; } else { $firstPointerInScope = $tokens[$scopeOwnerPointer]['scope_opener'] + 1; } $startCheckPointer ??= $firstPointerInScope; for ($i = $startCheckPointer; $i <= $scopeCloserPointer; $i++) { if (!ScopeHelper::isInSameScope($phpcsFile, $i, $firstPointerInScope)) { continue; } if ( $tokens[$i]['code'] === T_VARIABLE && self::isUsedAsVariable($phpcsFile, $variablePointer, $i) ) { return true; } if ($tokens[$i]['code'] === T_STRING) { if (self::isGetDefinedVarsCall($phpcsFile, $i)) { return true; } if (self::isUsedInCompactFunction($phpcsFile, $variablePointer, $i)) { return true; } } if ( in_array($tokens[$i]['code'], [T_DOUBLE_QUOTED_STRING, T_HEREDOC], true) && self::isUsedInScopeInString($phpcsFile, $tokens[$variablePointer]['content'], $i) ) { return true; } } return false; } private static function isGetDefinedVarsCall(File $phpcsFile, int $stringPointer): bool { $tokens = $phpcsFile->getTokens(); $stringContent = $tokens[$stringPointer]['content']; if (strtolower($stringContent) !== 'get_defined_vars') { return false; } $parenthesisOpenerPointer = TokenHelper::findNextEffective($phpcsFile, $stringPointer + 1); return $tokens[$parenthesisOpenerPointer]['code'] === T_OPEN_PARENTHESIS; } }