Dev Tools · 1h ago
Array Mutation Gotchas: PHP, Python, JS Share Same Core Bug
PHP copies arrays by default, while Python and JavaScript share references. Developers switching between languages often misapply mental models, leading to unexpected mutations. The bug manifests differently but stems from the same misunderstanding of value vs. reference semantics.
Meridian48 take
This is a classic footgun for polyglot developers, but the article's framing as a single 'bug' overstates it — it's really about knowing each language's default behavior.
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The Array Bug That Looks Different in PHP, Python, and JavaScript (But Is Really the Same Bug) →
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