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PHP

PHP static code analysis

Unique rules to find Bugs, Vulnerabilities, Security Hotspots, and Code Smells in your PHP code

  • All rules 273
  • Vulnerability42
  • Bug51
  • Security Hotspot34
  • Code Smell146
Filtered: 1 rule found
duplicate
    Impact
      Clean code attribute
        1. Methods should not have identical implementations

           Code Smell

        Methods should not have identical implementations

        adaptability - distinct
        maintainability
        Code Smell
        • confusing
        • duplicate
        • suspicious

        Why is this an issue?

        Two methods having the same implementation are suspicious. It might be that something else was intended. Or the duplication is intentional, which becomes a maintenance burden.

        class A {
            private const CODE = "secret";
        
            public function getCode() {
                doTheThing();
                return A::CODE;
            }
        
            public function getName() {  // Noncompliant: duplicates getCode
                doTheThing();
                return A::CODE;
            }
        }
        

        If the identical logic is intentional, the code should be refactored to avoid duplication. For example, by having both methods call the same method or by having one implementation invoke the other.

        class A {
            private const CODE = "secret";
        
            public function getCode() {
                doTheThing();
                return A::CODE;
            }
        
            public function getName() { // Intent is clear
                return $this->getCode();
            }
        }
        

        Exceptions

        Methods that are not accessors (getters and setters), with fewer than 2 statements are ignored.

        Additionally, accessors consisting of a single statement are ignored, if this statement does one of the following:

        • Return null or an empty list []
        • Throw an exception
        • Return a newly created object
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          on-premise CI
          Available Since
          9.1
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          Developer Edition
          Available Since
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