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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: 17 rules found
pitfall
    Impact
      Clean code attribute
        1. Unnecessary parentheses should not be used for constructs

           Code Smell
        2. Assertions should not be made at the end of blocks expecting an exception

           Bug
        3. Class of caught exception should be defined

           Bug
        4. References used in "foreach" loops should be "unset"

           Bug
        5. Classes named like "Exception" should extend "Exception" or a subclass

           Code Smell
        6. Static members should be referenced with "static::"

           Bug
        7. Errors should not be silenced

           Bug
        8. References should not be passed to function calls

           Code Smell
        9. Boolean checks should not be inverted

           Code Smell
        10. Related "if/else if" statements and "cases" in a "switch" should not have the same condition

           Bug
        11. "switch" statements should not be nested

           Code Smell
        12. Deprecated constructor declarations should not be used

           Code Smell
        13. Deprecated predefined variables should not be used

           Code Smell
        14. Octal values should not be used

           Code Smell
        15. "for" loop stop conditions should be invariant

           Code Smell
        16. Control structures should use curly braces

           Code Smell
        17. Local variables should not have the same name as class fields

           Code Smell

        Unnecessary parentheses should not be used for constructs

        intentionality - clear
        maintainability
        Code Smell
        • pitfall

        In PHP, incorrect use of parentheses can cause unexpected behavior in code. Therefore, it is important to avoid the unnecessary usage of parentheses for language constructs.

        Why is this an issue?

        How can I fix it?

        More Info

        Using constructs with parentheses can be misleading as it will produce a syntax that looks like a normal function call. However those constructs have lower precedence in the evaluation order than some others operators, this can lead to a behavior completely different from what the function syntax would hint. Also, some of the constructs have optional parameters, while modifying the code we may remove a parameter while keeping the parentheses, resulting in invalid code.

          Available In:
        • SonarQube IdeCatch issues on the fly,
          in your IDE
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        • SonarQube Community BuildAnalyze code in your
          on-premise CI
          Available Since
          10.1
        • SonarQube ServerAnalyze code in your
          on-premise CI
          Developer Edition
          Available Since
          10.1

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