PHP Checker vs ProtocolProbe
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
PHP Checker compared with ProtocolProbe
| Detail | 
PHP Checker | 
ProtocolProbe |
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| What it does | Free tools to check PHP versions and test code compatibility across versions 7.4 to 8.5
| Free directory of MCP server facts with checked information from public records
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| Stage | Not given
| Not given
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| Founded | Not given
| Not given
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| Based in | Not given
| Not given
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| Pricing model | Free
| Free
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| Pricing | Not given
| Not given
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| Key features | - PHP Version Checker to detect website PHP versions via headers and markers
- Multi-version code compatibility checker testing 7.4 to 8.5
- PHP Sandbox running code in your browser with real PHP interpreters
- PHP Syntax Checker identifying parse errors and deprecated functions
- PHP EOL Dates calendar with support status for all versions
- Bcrypt Generator for password hashing
- phpinfo() Analyzer explaining server configuration
- PHP Date Format tester
- PHP Formatter for code formatting
- PHP Regex Tester for preg_match patterns
| - Free JSON API with no authentication required
- Server search and filtering by name and description
- Rankings by downloads, stars and record checks
- Server comparison and topic filtering
- Self-test command for your own server
- Record checks with badge for README
- Corrections log tracking fact updates
- CC BY 4.0 licensed data export
- Change tracking for registry updates
- Allowlist export for company filtering
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| What makes it different | - All code runs in your browser on WebAssembly, never uploaded to servers
- Completely free with no sign-up required
- Website checker works on any device including school machines without software installation
| - Scheduled re-checking of all facts on a regular basis, unlike the official registry which only checks on publication
- Every fact shown with its source and the date checked
- No ads, sponsors or paid placements; income never changes listings or rankings
- Corrections publicly logged and requests always answered with reasoning
- Open API accessible to everyone without authentication key
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| Free plan | Not given
| Not given
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| Open source | Not given
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| Platforms | Not given
| Not given
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| Public API | Not given
| Not given
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | Not checked yet ● no change since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 0 | 3 |
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| Citation Flow (Majestic) | 0 | 22 |
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| Referring domains (Majestic) | 0 | 7 |
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4 details filled in for both companies.
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