LowFile-scopePHP Plug & play

Replace echo with proper logging

Do not use echo/var_dump for diagnostics in application code; use a PSR-3 logger or error_log with levels.

Why this matters

Echo contaminates HTTP responses/CLI output and breaks APIs; logging is routable and level-aware.

Side-by-side examples engineers can pattern-match during review.

Avoid

echo "DEBUG: ".$value; var_dump($payload);

Prefer

$logger->debug('payload received', ['size'=>strlen($raw)]);

Bad

echo 'here';

Good

$logger->info('step done')

From the same buckets as this rule.

Critical
Check consent and role-based authorization before returning ePHI
Handlers must verify the requester’s role and a valid consent/relationship (e.g., care team assignment) before disclosing ePHI; include Purpose-Of-Use in the decision and audit the outcome.
compliance-hipaasecurity-hardening+2
Critical
Mask PAN and exclude SAD from logs
Never emit Primary Account Number (PAN) or Sensitive Authentication Data (SAD: CVV/CVC, full track data, PIN) to application or audit logs. Per PCI DSS 4.0 Req. 3 and 10, always mask PAN as first6last4 and fully redact SAD before logging.
compliance-pci-dssobservability-logging+1
High
Add comprehensive error logging
Log failures with operation name, key identifiers, and exception; prefer structured logging (fields).
error-handlingobservability-logging