Avoid duplicate keys in array literals

#Metadata

Rule ID

php.correctness.duplicate-array-key

Severity

medium

Confidence

0.95

Languages

php

Presets

strict

Stability

stable

Applies to

block

Tags

correctness, php, rules-catalog

#Why it matters

Silent key replacement hides bugs and can invalidate intended configuration values.

#Remediation

Keep each key unique and merge or rename entries so earlier values are not silently replaced.

#Repository path

The generated metadata points to critiq-rules/libs/rules/catalog/rules/php/php.correctness.duplicate-array-key.rule.yaml.