Magento Blog: Guides and Practical Know-how | Page 204 | mironsoft
Magento Blog
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Aug 8, 2025
The hexagonal architecture, also known as Ports and Adapters, frees the domain logic from coupling to frameworks, databases, and external services. In Symfony it can be implemented precisely with PHP interfaces as Ports and Symfony services as Adapters: fully testable domain code without a single framework import in the core logic.
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Aug 8, 2025
An execution plan shows how a database actually runs a query, which indexes it uses, in what order it joins tables and how expensive each step is estimated to be. Anyone who can read this execution plan finds performance problems in minutes instead of guessing, regardless of whether the query runs against MySQL, PostgreSQL or SQL Server.
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Aug 8, 2025
NULL values in aggregate functions are treated differently by COUNT, SUM and AVG, and these exact differences regularly lead to wrong average values and misleading reports. This article explains why COUNT(*) and COUNT(column) return different results, how AVG can be skewed by NULL, and how COALESCE, NULLIF and deliberate GROUP BY control this NULL behavior on purpose.
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Aug 8, 2025
Breakpoints that never hit, Xdebug connecting but failing to find the files, deployments that land in the wrong path: almost all of these problems share the same cause, misconfigured or missing Path Mappings. Once you understand the concept, you solve these problems in minutes.
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Aug 8, 2025
Multiple plugins on the same method silently depend on the sortOrder in di.xml. A test that documents the actual execution order prevents a new plugin from silently tipping over an existing order and, with it, the behavior.
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Aug 7, 2025
The moment a Claude application processes foreign content, whether user documents, web pages or emails, a new attack surface opens up: embedded instructions that try to override the actual system behavior. Prompt injection is therefore not a theoretical edge case but a concrete security risk for every production AI integration.
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Aug 7, 2025
Content decay describes the gradual decline of rankings and traffic on content that used to perform well, without any single obvious cause. Unlike a sudden ranking drop after a Google update, this process unfolds over months and is therefore often only noticed once traffic has already fallen noticeably. This article covers the most common causes, a practical monitoring setup for early detection, and a clear decision framework for updating, consolidating or removing affected content.
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Aug 7, 2025
React normally uses the key prop to identify list items. Deliberately changing the key outside a list makes React discard the entire component instance and create a completely new one. This pattern is an underrated tool for reliably resetting internal state without manual reset logic.
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Aug 7, 2025
A third party feature flag service comes with a convenient dashboard, but also an extra dependency, ongoing cost, and in many cases user data reaching a third server that was never actually necessary. For a large share of the usual use cases, from simple on-off switches to percentage rollouts with segment targeting, a compact, self-built feature flag system in PHP is entirely sufficient.
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Aug 7, 2025
A --help text disappears the moment the terminal closes, while a man page stays behind as a searchable document in the system, reachable through man at any time. With pandoc converting a Markdown document, or help2man building directly from the --help output, that gap closes for a homegrown Bash script without any manual troff work.