3v4l
Run PHP code online and compare output across hundreds of PHP versions with the 3v4l editor.
About 3v4l
3v4l.org is an online shell that runs submitted PHP code on its server across more than 500 PHP versions, starting from 4.3.0. For each submission it shows output from released versions as well as upcoming alpha, beta and release-candidate versions and RFC branches, along with execution time, memory use and VLD opcode output.
Key features
- Run PHP code online across 500+ versions since 4.3.0
- Show output from released and upcoming alpha, beta, and RC versions
- Report execution time and memory use per version
- Display VLD opcode output for submitted scripts
- Show output from popular RFC branches
Best for: Developers who need to compare PHP code output and behavior across many PHP versions.
Good for
- Tests code against more than 500 PHP versions back to 4.3.0
- Includes alpha, beta, release-candidate and RFC branch output
- Reports time, memory use and VLD opcode output per submission
3v4l at a glance
- Website
- 3v4l.org
- Category
- Development › Web Development
- Type
- Online tool
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
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3v4l FAQ
Which PHP versions does 3v4l test?
More than 500 versions, including every release since 4.3.0 plus upcoming alpha, beta and release-candidate versions.
What results are shown for a submitted script?
Output per PHP version, execution time and memory use, and VLD opcode output.
Is something wrong or out of date?
Tell us and an editor will check it.
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