What are some common challenges when working with encrypted PHP scripts like SourceGuardian?

One common challenge when working with encrypted PHP scripts like SourceGuardian is the inability to debug or modify the code easily due to the encryption. To overcome this, one approach is to use a tool like SourceGuardian's decoder to decrypt the code for debugging purposes. Additionally, ensuring proper documentation and version control can help mitigate the challenges of working with encrypted scripts.

// Example code snippet for decoding SourceGuardian encrypted PHP script
$encoded_script = file_get_contents('encrypted_script.php');
$decoded_script = sg_decode($encoded_script);
eval($decoded_script);