Hosting Glossary
What is PHP?
PHP in plain English — the definition, the analogy, and why it matters to anyone who runs a website.
The short answer
PHP is the server-side language running most of the web's dynamic sites — WordPress, WooCommerce and the bulk of the CMS world execute on it.
Below: the fuller explanation, an analogy that makes it stick, why it matters in practice, and where you'll actually meet it.
Written by the HostingAlly team · Last revised 27 July 2026
0
Jargon left unexplained
100+
Linked definitions
Real
Platform examples
Free
To read, obviously
Pages that change per visitor — logins, carts, searches — are PHP assembling HTML on demand, usually against a MySQL database. Its 8.x generation is dramatically faster than the versions its dated reputation remembers.
On hosting, the PHP version is a per-site setting — and one of the cheapest performance and security levers available, since old versions are both slower and unpatched.
A picture that makes PHP stick
The kitchen behind the menu — static files are pre-plated dishes; PHP cooks each dynamic page to order from the database's larder, and the kitchen's modernity decides the service speed.
Analogies simplify, of course — but this one holds up well enough to reason with, and reasoning is the point of a glossary.
The practical stakes
Your WordPress site is a PHP application — its speed rides the PHP version and OPcache, its security rides staying on supported releases, and both are dropdown choices on decent hosting.
You don't need to operate this layer daily — you need to recognise it when it's the explanation for something, which is exactly when this page pays for itself.
A concrete example
Switching a site from PHP 7.4 to 8.3 in the panel cuts admin page times visibly — same code, newer engine, five minutes including the click-through test.
Ordinary, once seen — which is the point: most hosting concepts are simple machinery wearing intimidating names.
Where you'll meet it on our platform
On our hosting this mostly takes care of itself — the platform applies the sensible defaults, and the panel exposes the controls when you want them. The concepts worth knowing next: MySQL, WordPress, OPcache and CMS.
Every plan includes free SSL that renews itself, so the padlock is never your job.
Jargon is a service failure
Every confusing term in hosting eventually becomes a support ticket — so we defined the hundred most common ones properly, once, in the plain English we'd use on the phone.
Every plan includes free SSL that renews itself, so the padlock is never your job.
- 100+ terms, plain English
- Analogies and real examples
- Cross-linked related concepts
- Written by the support desk
Why HostingAlly
Every plan includes this, whatever you pay
Plain English first
Every term defined for site owners, not for other sysadmins — jargon translated, not restated.
The next reads, mapped
This entry connects to MySQL and WordPress — concepts travel in packs, and the pack is linked.
Analogies that stick
Each concept gets a picture you'll remember at the moment you actually need it.
Grounded in a real platform
Examples reference the hosting you'd actually use, not abstract diagrams.
The practical stakes named
Not just what it is — when it's the answer to a problem you're having.
One term, fully landed
PHP defined, pictured by analogy and placed in your own control panel — recognise-level in a single read.
Getting Started
How to get going
- 1
Spot it in your own setup
Open your control panel and find where this concept lives — seeing it attached to your own site is what converts definition into understanding.
- 2
Check the defaults
Our platform ships sane defaults for this — verify rather than assume, and you'll know your setup instead of hoping about it.
- 3
Follow the related terms
Concepts travel in packs — MySQL, WordPress and OPcache complete this one's picture, and each is a two-minute read away.
Included
What's covered on our plans
- Email accounts on your own domain
- SSH, Git and Composer access on developer-friendly plans
- Renewal prices that match signup prices
- Free SSL certificate on every plan, renewed automatically
- Daily automatic backups with self-service restores
- Free website migration handled by our team
- Free WebP image optimisation built in
- DDoS protection at the network level
- Free domain for the first year on annual plans
- 24/7 support from real people
FAQ
Your questions, answered
Is PHP outdated?
The reputation is; the language isn't — PHP 8's engine work made it one of the faster interpreted runtimes, and it still executes most of the web. The genuinely outdated thing is running 7.x in 2026.
Do I need to know PHP to run a WordPress site?
No — WordPress abstracts it entirely for daily use. Awareness helps at the edges: reading error logs, understanding version updates, and knowing why that ancient plugin blocks your PHP upgrade.
Can I transfer a domain I already own?
Yes — transfers in are routine: unlock the domain at the current registrar, grab the auth code, and start the transfer from your client area. The remaining registration time carries over, and DNS keeps working throughout.
Will you move my existing website for free?
Yes — open a ticket with your current host's access details and we handle the whole move: files, databases, email and configuration, verified by you before DNS switches. The old site keeps serving until the new copy takes over, so visitors never see a gap.
Do you monitor uptime, and what do you commit to?
We commit to 99.9% uptime and monitor continuously — not a marketing number but an operational one, with alerting that usually has us fixing issues before customers notice them.
How do I read my email away from my desk?
Webmail works from any browser, and every mailbox also supports IMAP, POP and SMTP — so your phone's mail app, desktop client and webmail all see the same messages.
Can I host more than one website on a plan?
On the Pro tier and above, yes — multiple sites with their own domains, email and SSL under one account. If the extra sites belong to clients rather than you, reseller hosting gives each one proper isolation instead.
Keep exploring
WordPress
WordPress is the open-source content management system running roughly four in ten websites.
OPcache
OPcache keeps compiled PHP bytecode in memory, so scripts skip recompilation on every request — free speed for every PHP site.
WordPress Hosting
Managed WordPress with LiteSpeed caching, staging and automatic backups.
Drupal Hosting
Drupal hosting with Composer, Drush and per-site PHP control.
Planning to switch hosts? Grab the checklist here.
The steps that keep a site migration dull rather than dramatic: what to back up first, how to shift email across without losing a single message, when to touch DNS, and the two mistakes behind nearly every hour of downtime we come across.
Ready when you are.
Every plan includes the essentials others sell as extras — and support that actually answers.
View WordPress Hosting plans