You are tasked with converting PHP 5.2 code to mak it compatible with PHP 7.4

## Overview
You are tasked with upgrading a legacy PHP 5.2 codebase to PHP 7.4+ compatibility by applying specific code transformations. Copy all files from `C:\Quantum` to `C:\Quantum74` with the necessary modifications applied.

## Source and Destination
- **Source Directory**: `C:\Quantum` (and all subdirectories)
- **Destination Directory**: `C:\Quantum74` (create matching subdirectory structure)

## Required Code Transformations

### 1. Replace split() Function
- **Find**: All instances of `split()` function calls
- **Replace**: With `preg_split()` function calls
- **Note**: `split()` was removed in PHP 7.0
- **Example**: `split(',', $string)` → `preg_split('/,/', $string)`

### 2. Fix Unparenthesized Concatenation with Arithmetic
- **Find**: Expressions using `.` (concatenation) before `+` or `-` (arithmetic) without parentheses
- **Fix**: Add parentheses to explicitly define order of operations
- **Example**: `$a . $b + $c` → `$a . ($b + $c)` or `($a . $b) + $c` (based on intended logic)

### 3. Remove Parameter Shadowing of Superglobals
- **Find**: Function parameters named the same as superglobals (`$_POST`, `$_GET`, `$_SESSION`, `$_COOKIE`, `$_SERVER`, `$_FILES`, `$_ENV`, `$GLOBALS`)
- **Fix**: Rename these parameters to avoid conflicts
- **Example**: `function test($_POST)` → `function test($postData)`

### 4. Fix Duplicate Function Parameters
- **Find**: Functions with multiple parameters having identical names
- **Fix**: Ensure all function parameters have unique names
- **Example**: `function test($a, $b, $a)` → `function test($a, $b, $c)`

### 5. Fix break/continue with 0 Argument
- **Find**: `break 0;` or `continue 0;` statements
- **Fix**: Remove the 0 argument or replace with positive integer
- **Example**: `break 0;` → `break;` or `continue 0;` → `continue;`

### 6. Remove Magic Quotes Related Code
- **Find and Remove**:
  - `get_magic_quotes_runtime()` function calls
  - `set_magic_quotes_runtime()` function calls
  - References to `magic_quotes_runtime` INI directive
- **Action**: Remove these calls entirely as magic quotes are obsolete

### 7. Remove Deprecated INI Directives
- **Find and Remove**:
  - `mbstring.func_overload` INI directive references
  - `safe_mode` INI directive references
- **Action**: Remove or comment out these configurations

### 8. Replace __autoload() Function
- **Find**: `__autoload()` function definitions
- **Replace**: With `spl_autoload_register()` based autoloading
- **Example**:
  ```php
  // Old
  function __autoload($class) {
      include $class . '.php';
  }
  
  // New
  spl_autoload_register(function($class) {
      include $class . '.php';
  });
  ```

### 9. Fix Nested Ternary Operators
- **Find**: Multiple consecutive ternary operators without explicit parentheses
- **Fix**: Add parentheses to define evaluation order
- **Example**: `$a ? $b : $c ? $d : $e` → `$a ? $b : ($c ? $d : $e)`

## Execution Steps
1. **Create destination directory structure**: Mirror the entire `C:\Quantum` directory structure in `C:\Quantum74`
2. **Copy all files**: Copy every file from source to destination
3. **Apply transformations**: Process each PHP file and apply the above transformations
4. **Validate syntax**: Ensure modified files have valid PHP syntax
5. **Generate report**: List all files modified and changes made

## Important Notes
- Preserve original file permissions and timestamps where possible
- Maintain exact directory structure
- Only modify `.php` files for the PHP-specific changes
- Keep backups implicit (original files remain in `C:\Quantum`)
- Test critical functionality after transformation
- Be careful with string contexts when fixing concatenation/arithmetic expressions

## Success Criteria
- All files copied from `C:\Quantum` to `C:\Quantum74`
- All `split()` functions replaced with `preg_split()`
- No deprecated function calls remain
- All code transformations listed earlier are applied correctly
- No syntax errors in modified PHP files
- Code maintains original functionality while being PHP 7.4+ compatible