PHP has a reputation built on code written fifteen years ago and a present that looks very different, which creates an unusual hiring problem: the same language name covers firms writing well structured modern applications and firms still writing what the reputation describes. Telling them apart is the whole task.
How to tell whether a custom PHP development company writes modern PHP
Ask which framework and which version, how dependencies are managed, whether the codebase has automated tests and what the coverage is used for, whether types are used, and how database access is structured. Modern answers are specific and unremarkable. Warning signs are queries built by string concatenation, no dependency management, no tests, and a claim that the framework is unnecessary because the team has its own.
Inheriting a codebase is a different engagement
A great deal of PHP work is maintaining something built years ago by someone unavailable. That work should start with an assessment rather than a plan: what the code does, what is safe to change, what the security exposure is, and what the upgrade path for the language version is. Beware a firm that proposes a rewrite in the first meeting, since the existing system encodes years of accumulated correctness nobody has written down.
Security questions worth asking directly
Legacy PHP applications concentrate a predictable set of exposures: injection through unparameterised queries, weak or outdated password storage, file upload handling, and unpatched language and dependency versions. Ask how the firm would assess those, and use the elements at 16 CFR 314.4 as the frame: access control, encryption in transit and at rest, secure development practices, logging, periodic testing and an incident response plan.
The commercial picture when outsourcing PHP development
Supply is deep and rates sit below the average for the profession, which is genuinely attractive and also the reason the quality range is the widest of any common stack. Against a US median annual wage BLS puts at $135,980 for software developers in May 2025, a very cheap PHP quote is buying something specific. Spend the saving on a small paid trial before committing, because filtering is where the risk actually is.
Questions people ask about php development company
Is PHP a reasonable choice today?
Yes, for web applications and content driven sites, provided the firm writes modern PHP. Ask which framework and version, how dependencies are managed, whether there are automated tests and how database access is structured.
We inherited a PHP codebase. Where do we start?
With an assessment rather than a plan: what the code does, what is safe to change, the security exposure and the language upgrade path. Be wary of a firm proposing a rewrite in the first meeting.
Why do quotes to outsource PHP development vary so much?
Deep supply and below-average rates make it attractive and give it the widest quality range of any common stack. Spend some of the saving on a small paid trial, because filtering is where the risk sits.