Filterus Laravel Package

Product Decisions This Supports

• Validation/sanitization architecture – Informs whether to standardize input handling on a dedicated, composable filter layer versus Laravel's built-in Validator/Form Requests or raw filter_var(). Filterus is relevant as a reference design for a small, chainable filter abstraction (string/int/array/regex/email filters).
• Build vs. buy for a filtering utility – If your team is writing the same ad-hoc sanitization helpers across services, this package is a data point for "adopt a tiny library" vs. "build a 200-line internal helper." Given its low opportunity score and unclear maintenance, it likely supports a build decision, with this package as prior art.
• Legacy modernization roadmap – Useful when assessing cost/risk of dependencies in older PHP 5.x-era applications; helps prioritize replacing or isolating unmaintained packages.
• Feature-level use cases – Batch data cleaning (CSV/import pipelines), external API payload normalization, config/env value coercion, and defense-in-depth input filtering for admin tooling.
• Security posture decisions – Feeds the discussion on whether third-party filters are acceptable for security-sensitive input paths versus first-party, audited validation rules.

When to Consider This Package

Consider it when:

• You maintain a legacy PHP (5.3–5.6) codebase and need a dependency-free, lightweight, composable filter library that can be vendored and pinned.
• You want a compact, readable reference implementation of a filter abstraction to inspire an internal utility.
• You need basic scalar/array filtering with a tiny surface area and are comfortable owning the code.

Look elsewhere when:

• You are starting a new Laravel project — use Laravel's Validator, Form Requests, and filter_var(); they are maintained, documented, and PHP 8+ compatible.
• Active maintenance, security patches, PSR compliance, or community support are requirements. This package shows no evidence of current maintenance; treat it as abandoned until proven otherwise.
• You need strict typing, PHP 8.x compatibility, or integration with modern validation ecosystems.
• Validation is security-critical (auth, payments, PII). Prefer Symfony Validator, Respect\Validation, webmozart/assert, or Laravel's validator, which have active security review.
• You require structured error reporting, localization, or rule composition beyond basic filtering.

How to Pitch It (Stakeholders)

To executives: This is a small, zero-dependency filtering library with a clean API and a decent star count, but it is effectively unmaintained and predates modern PHP. It is not a strategic dependency — the recommendation is to avoid adding it to new products and to use it, if at all, only as design inspiration or a short-term stopgap in legacy systems. Cost of adoption is low; cost of long-term ownership (forking, patching, security review) is the real risk.

To engineering: The functional, composable filter design is genuinely useful and worth borrowing for an internal validation utility. However, the package targets PHP 5.x, lacks active maintenance, and has no guarantees around PHP 8 compatibility or security patches. If adopted, vendor/pin it, wrap it behind an internal FilterInterface, and isolate call sites so it can be swapped for Laravel's validator or filter_var() without touching product code.

Recommendation: Do not adopt as a new dependency. Evaluate the source as reference material for a small internal filter layer; standardize new work on Laravel's native validation stack.