Frequently Asked Questions (FAQ)
About SQLize.online & PHPize.online
SQLize.online is a free online SQL playground that lets you write, run, and share SQL code instantly in your browser. It supports multiple database engines and PHP versions for learning, testing, and sharing SQL and PHP code.
PHPize.online is a free online environment for quickly running, experimenting with, and sharing PHP (including the Carbon extension for DateTime) and SQL code. You can run your SQL code together with PHP code that can use the same database. For database manipulations, you can use pre-defined instances of PDO ($pdo), mysqli ($mysqli), and Laravel query builder ($db).
Preloaded Sample Databases:
For your convenience, several sample databases are preloaded and available for instant use:
- Sakila for MySQL and MariaDB
- Bookings for PostgreSQL
- Employees for Firebird
- Countries for PostGIS (PostgreSQL with spatial extension)
General Usage
- How do I run SQL code?
Type your SQL code in the editor, select the database engine and version, and click the "Run" button. The results will appear below the editor. - Can I run PHP code?
Yes! Switch to the PHPize tab, write your PHP code, and run it. You can also interact with databases from PHP. PHPize.online supports the Carbon extension for DateTime and provides pre-defined database objects:$pdo(PDO),$mysqli(MySQLi), and$db(Laravel query builder) for convenient database access in your PHP scripts. - What databases are supported?
SQLize.online supports MySQL, PostgreSQL, SQL Server, MariaDB, Firebird, Oracle, SQLite and ClickHouse. The available versions are shown in the selector. - Is registration required?
No registration is needed. You can use all features anonymously. - How do I share my code?
Click the "Share" button to get a unique link to your code. You can send this link to others or save it for later. - Can I save my work?
Yes! After logging in, you can save your snippets to your account for easy access later. You can also use the "Share" feature to create a permanent link to your code. - Are there any usage limits?
There are reasonable limits to prevent abuse (e.g., query timeouts, resource limits), but normal educational and development use is welcome.
Security & Privacy
- Is my code private?
Code you run is not visible to others unless you share the link. However, do not use real passwords or sensitive data. - How is my data handled?
See our Privacy Policy for details. We do not store your code or data beyond what is needed to provide the service.
Troubleshooting
- Why did my query fail?
Check for syntax errors, unsupported features, or resource/time limits. Each database may have its own restrictions. - Can I report a bug or request a feature?
Yes! Contact us via support@sqlize.online or join our Telegram chat.
Other Questions
- Can I use SQLize.online for teaching?
Absolutely! Feel free to use and share it in classrooms, tutorials, and workshops. - Is SQLize.online free?
Yes, it is completely free to use. - Can I support SQLize.online?
Yes! If you find the service useful, you can support us with a donation. See the donation page for details.