Growing the PHP Core – One Test at a Time
summary
Claim: contribute to PHP core by writing tests without C. Shows cloning PHP from GitHub, compiling, running make test, and writing PHPT files using the phpt file format to exercise output-compression behavior (Accept-Encoding, zlib.output_compression ini). Runs ~11,891 tests in ~35 seconds with 99.7% succeeded and two failures, diagnoses a copy‑on‑write superglobal issue, injects HTTP_ACCEPT_ENCODING via environment to avoid gzip binary output, opens a pull request that lands and shows coverage.
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chapters (8)
- 0:00Introduction
- 0:31Getting started with testing
- 3:07Compiling and running tests
- 7:54Anatomy of a PHPT test
- 11:12Finding bugs and test targets
- 13:52Writing and debugging a test
- 25:37The value of contribution
- 29:47Q&A and closing
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