MCPInstall

phpcheck-url

Check the advertised PHP version from a URL or hostname.

Installs
59
Last 24h
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Trending rank
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Security
Not audited

Install

Works with every agent the skills CLI supports.

npx skills add https://github.com/openai/php2shell-checker --skill phpcheck-url
  1. 01

    Install

    Run the command in your project. The CLI asks which agents to install for.

  2. 02

    Describe the task

    Ask your agent for something this skill covers. It loads phpcheck-url automatically when relevant.

  3. 03

    Review the result

    The agent follows the SKILL.md steps, scripts and references bundled with the skill.

SKILL.md

The instructions your agent reads when the skill is triggered.

From this skill's directory, run:

node scripts/phpcheck.js "https://example.com" --json

Use HTTPS for a bare hostname. The checker reads Server and X-Powered-By headers. If the version is hidden, report unknown.

Versions below an upstream fix return potentially_vulnerable with exit code 1. PHP 5.4–5.6, 7.0–7.4, 8.0 and 8.1 also return this warning. A higher patch number on those branches, such as 8.1.35, does not establish a fix.

Exit code 1 is a version-based warning, not proof that the installed package is unpatched. HTTP headers cannot tell whether the version contains a backported fix. Describe the result as potentially vulnerable, never confirmed vulnerable.

An ok result with exit code 0 means only that the advertised stable version meets an upstream fixed release: 8.2.35, 8.3.36, 8.4.27 or 8.5.12. The installed build is not verified. Missing or unrecognized versions, prereleases and failed checks return unknown with exit code 3.

Headers can be changed. A server-side check of the package serving the site is stronger evidence. Do not run exploit probes.

Exit codes 1 and 3 are check results. Invalid arguments exit with code 2.

FAQ

What does the phpcheck-url skill do?

Check the advertised PHP version from a URL or hostname.

How do I install phpcheck-url?

Run npx skills add https://github.com/openai/php2shell-checker --skill phpcheck-url in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/phpcheck-url/ (personal) or .claude/skills/phpcheck-url/ (project).

Which AI agents can use phpcheck-url?

Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.

Is phpcheck-url safe to install?

No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.

Who maintains phpcheck-url?

It is published by openai in openai/php2shell-checker. It has 59 recorded installs.

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