PHP Jsonwebtoken JWT Signature Is Required: Security review for SDK integration
PHP guide for jsonwebtoken jwt signature is required in SDK integration: checks, failure modes and no-upload steps. Updated 2026.
Execution checklist
- Validate payload and identify first non-recoverable parser/decoder error.
- Normalize format assumptions for PHP and SDK integration workflows.
- Apply minimal fix and rerun validation locally without upload.
- Capture final runbook and link related runtime/intent pages.