Services
Maintenance, refactoring, upgrades and practical development for established PHP applications.
A long-running PHP application often carries the rules a company depends on: prices, orders, invoices, permissions, reports, accounting exports and integrations. Its age is a reason to assess risk, not a reason to discard the system. A newer framework can still have unclear boundaries or missing tests; an older one can have dependable workflows and data used every day.
GiSoft identifies what works, what fails, which processes are critical and what the business needs next. The appropriate decision may be to retain, stabilize, refactor, modernize or replace one selected part.
A review maps important workflows, data ownership, user accounts and permissions, dependencies, integrations, background jobs, deployment and operational blind spots. Stabilization may come first when errors disappear into logs, retries create duplicates, releases are risky or recovery after a failed import is unclear.
Characterization tests protect known behaviour before implementation changes. They can cover price calculation, order creation, invoice rules, customer status or access control. They need not cover every legacy method; their purpose is to protect workflows where an error has a material consequence.
Symfony 1.x applications often use modules, actions, templates, form helpers, Propel or early Doctrine, cron jobs and jQuery. Moving to modern Symfony is normally not a mechanical version-by-version upgrade: routing, authentication, forms, service design, ORM, configuration and dependencies may need separate decisions. A controlled route may isolate business logic and high-risk integrations first, then introduce newer Symfony components where justified.
Older Laravel applications may have business rules spread across controllers, Eloquent models, service classes and HTTP requests, with unclear job retries. The useful work is to make boundaries and validation explicit, protect important behaviour and update packages and runtime in compatible stages.
Zend Framework 1, Zend Framework 2/3 and Laminas each need their own compatibility assessment. Yii, Yii 2, custom frameworks and plain PHP applications with include files need the same discipline: understand entry points, global state, dependencies and hidden business rules. There is no universal migration route.
Direct SQL is not inherently a defect. It can suit reporting, performance-sensitive work or an established data model. It becomes risky when critical rules or tenant boundaries are copied inconsistently, data ownership is unclear or changes cannot be tested. Doctrine and other ORM tools should serve the actual application rather than being imposed everywhere.
Before a database change, determine which system owns each important value and how old and new versions can coexist. Data migration should be incremental where practical, tested against historical data and followed by verification. Destructive changes and irreversible conversions need a recovery plan; returning application code alone may not repair changed data.
Legacy applications often rely on SOAP, REST, XML, CSV, SFTP, cron jobs, queues and external services. Keep these details behind integration boundaries, validate input and output, use limited safe retries and make failed work visible. A timeout does not prove that an external operation failed, so uncertain cases may need reconciliation rather than blind repetition.
Review legacy accounts, authentication and authorization before adding new features. Server-side permission checks, tenant separation, secret handling and safe logging remain necessary regardless of framework age. A server-rendered interface or jQuery can remain appropriate when it supports the user task; a modern API or frontend is an option, not a requirement.
PHP runtime upgrades require compatible dependencies, Composer review, configuration checks and verification of workers, scheduled tasks and deployment scripts. Monitoring should connect technical signals to business effects: failed jobs, delayed exports, payment or invoice discrepancies and manual recovery.
Incremental work is often safer when valuable workflows can be protected and changed by boundary: a payment integration, report, authentication flow, customer API or background job. A full rewrite may be justified when the current system cannot meet essential needs safely, but it carries its own migration and continuity risk.
GiSoft supports established PHP applications with an evidence-based plan: understand the process, protect critical behaviour, remove immediate operational risk and make the next change manageable. The right path depends on runtime, framework, data and integrations. The aim is practical continuity and useful progress, not fashionable technology for its own sake.
