Best Practice for Class Variable within Private Function?












0












$begingroup$


I know this is a subjective question, but it's been haunting me for years.



Let's jump straight to a simple Example:



class MyClass {
private $username;

function __constructor( $username ) {
$this->username = $username;
}

function register() {
if( $this->_has_duplicate( $this->username ) ) { // #1
return false;
}

...
}

private function _has_duplicate( $username ) {
...
}
}


In #1, I passed on a class variable to _has_duplicate(). But that function also has access to the same class variable.



Should I simply pass nothing and call the variable inside _has_duplicate()?



Is the code below follow better practice?



...

function register() {
// pass nothing
if( $this->_has_duplicate() ) {
return false;
}

...
}

private function _has_duplicate() {
// when needed I call $this->username
...
}


Thank you!










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$endgroup$

















    0












    $begingroup$


    I know this is a subjective question, but it's been haunting me for years.



    Let's jump straight to a simple Example:



    class MyClass {
    private $username;

    function __constructor( $username ) {
    $this->username = $username;
    }

    function register() {
    if( $this->_has_duplicate( $this->username ) ) { // #1
    return false;
    }

    ...
    }

    private function _has_duplicate( $username ) {
    ...
    }
    }


    In #1, I passed on a class variable to _has_duplicate(). But that function also has access to the same class variable.



    Should I simply pass nothing and call the variable inside _has_duplicate()?



    Is the code below follow better practice?



    ...

    function register() {
    // pass nothing
    if( $this->_has_duplicate() ) {
    return false;
    }

    ...
    }

    private function _has_duplicate() {
    // when needed I call $this->username
    ...
    }


    Thank you!










    share|improve this question







    New contributor




    hrsetyono is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.







    $endgroup$















      0












      0








      0





      $begingroup$


      I know this is a subjective question, but it's been haunting me for years.



      Let's jump straight to a simple Example:



      class MyClass {
      private $username;

      function __constructor( $username ) {
      $this->username = $username;
      }

      function register() {
      if( $this->_has_duplicate( $this->username ) ) { // #1
      return false;
      }

      ...
      }

      private function _has_duplicate( $username ) {
      ...
      }
      }


      In #1, I passed on a class variable to _has_duplicate(). But that function also has access to the same class variable.



      Should I simply pass nothing and call the variable inside _has_duplicate()?



      Is the code below follow better practice?



      ...

      function register() {
      // pass nothing
      if( $this->_has_duplicate() ) {
      return false;
      }

      ...
      }

      private function _has_duplicate() {
      // when needed I call $this->username
      ...
      }


      Thank you!










      share|improve this question







      New contributor




      hrsetyono is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.







      $endgroup$




      I know this is a subjective question, but it's been haunting me for years.



      Let's jump straight to a simple Example:



      class MyClass {
      private $username;

      function __constructor( $username ) {
      $this->username = $username;
      }

      function register() {
      if( $this->_has_duplicate( $this->username ) ) { // #1
      return false;
      }

      ...
      }

      private function _has_duplicate( $username ) {
      ...
      }
      }


      In #1, I passed on a class variable to _has_duplicate(). But that function also has access to the same class variable.



      Should I simply pass nothing and call the variable inside _has_duplicate()?



      Is the code below follow better practice?



      ...

      function register() {
      // pass nothing
      if( $this->_has_duplicate() ) {
      return false;
      }

      ...
      }

      private function _has_duplicate() {
      // when needed I call $this->username
      ...
      }


      Thank you!







      php






      share|improve this question







      New contributor




      hrsetyono is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.











      share|improve this question







      New contributor




      hrsetyono is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.









      share|improve this question




      share|improve this question






      New contributor




      hrsetyono is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.









      asked 14 mins ago









      hrsetyonohrsetyono

      1011




      1011




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      hrsetyono is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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      New contributor





      hrsetyono is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.






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