Create issue number 20

[otis22]

Add Xdebug version selection to Dockerfile to prevent incompatibility errors when building images with different PHP versions.

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Note

Adds conditional Xdebug version selection based on PHP major and refactors Dockerfile install steps for reliability.

• Dockerfile (docker/Dockerfile):
  • Xdebug installation:
    • Determines PHP_MAJOR from VERSION and installs xdebug-3.1.6 for PHP < 8, otherwise xdebug.
    • Explicitly enables Xdebug via docker-php-ext-enable xdebug.
  • Build robustness/refactor:
    • Uses set -eux and consolidates apk commands with --no-cache.
    • Keeps linux-headers, ICU libs/dev, pcre-dev + ${PHPIZE_DEPS} during build; removes them after.
  • Extensions/Tools:
    • Unchanged: installs bcmath, intl, and Composer 2.

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[coveralls]

Pull Request Test Coverage Report for Build 19872606544

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 92.91%

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Totals
Change from base Build 19871756010:	0.0%
Covered Lines:	249
Relevant Lines:	268

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💛 - Coveralls

[coveralls]

Pull Request Test Coverage Report for Build 19872606544

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 92.91%

---

Totals
Change from base Build 19871756010:	0.0%
Covered Lines:	249
Relevant Lines:	268

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💛 - Coveralls

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[cursor]

Bug: ARG variable not available inside RUN command

The VERSION ARG declared before FROM is not available in the RUN instruction. Docker ARG variables declared before FROM are only scoped to the FROM line itself and must be re-declared after FROM to be used in subsequent instructions. As a result, ${VERSION} will be empty, making PHP_MAJOR empty, and the comparison [ "${PHP_MAJOR}" -lt 8 ] will fail with an integer expression error. Adding ARG VERSION after the FROM line would make the variable available in the build stage.