Added PHP direct shells Along with few others

[0xDTC]

Added PHP Direct System Shell Commands Collection

Added multiple PHP-based direct system shell commands using various PHP functions and shell types:

1. Basic System Shells:

• PHP Direct System Shell (full bash reverse shell)
• PHP Direct System Shell (Short) - simplified version
• PHP Direct System Shell (One-Liner) - compact version using <?= syntax

2. Windows-Specific Shells:

• PHP Direct PowerShell - using system() to spawn PowerShell reverse shell
• PHP Direct CMD - using system() to spawn CMD via PowerShell
• PHP Direct System Shell (netcat Windows) - using nc.exe

3. Unix/Linux Shells:

• PHP Direct System Shell (netcat) - using traditional nc
• PHP Direct System Shell (Python) - using Python socket
• PHP Direct System Shell (Perl) - using Perl socket implementation

4. Alternative PHP Function Implementations:

• PHP Direct System Shell (exec) - using exec() function
• PHP Direct System Shell (passthru) - using passthru() function
• PHP Direct System Shell (shell_exec) - using shell_exec() function
• PHP Direct System Shell (popen) - using popen()/pclose() functions

Note: These shells rely on PHP's system execution functions being enabled and not restricted by disable_functions or safe mode. Success may vary depending on server configuration and security settings. Testing in your specific environment is recommended.

Key considerations:

• Requires PHP system functions to be enabled
• May be blocked by security configurations
• Different methods provide fallback options
• Windows vs Unix/Linux specific variations included