There is no reason to re-assign a variable to itself. Either this statement is redundant and should be removed, or the re-assignment is a mistake and some other value or variable was intended for the assignment instead.

Noncompliant Code Example

public function setName($name) {
    $name = $name;
}

Compliant Solution

public function setName($name) {
    $this->name = $name;
}

See