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Creating Thumbnails in PHP

Image thumbnails resize decoded image data while preserving sensible dimensions and aspect ratio. Treat uploaded images as untrusted; decode and re-encode safely, limit pixels and strip sen…

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Enforcing PSR-12 Code Style

PSR-12 defines consistent formatting for PHP source, including declaration layout and whitespace. A formatter does not enforce security or architectural rules; lint and test.

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Generating UUIDs in PHP

UUID version 4 identifiers encode 122 random bits with fixed version and variant fields. A random hex string is not automatically an RFC-compliant UUID; identifiers are not authorization.

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