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With a little help from my friends 2nd edition
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Speed up your code
How to improve PHP code to emit less carbon. Talk on the PHP Developer Day 2023 in Dresden, 22.09.2023.
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Green ElePHPant (PDF + Sources)
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With a little help from my friends
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Coding against climate change
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Reduce boilerplate code
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Coding against climate change
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Continuous Testing and Beyond
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The Lone Stranger