1.2.257. Could Be Enumeration

This rule detects a potential enumeration. When a property is only and ever assigned a finite number of literals, it may be turned into an enumeration. Currently, the analysis focuses on properties that may have 2 or more values (parameter minElements). The property should only be assigned literals, or constants.

<?php

class x {
    private $p = 0;

    function foo() {
        if ($this->p === 0) {
            $this->p = 1;
        } else {
            $this->p = 0;
        }
    }
}

?>

Name	Default	Type	Description
minElements	2	integer	Minimal number of elements to consider that a property may be an enumeration.

1.2.257.1. Specs

Short name	Enums/CouldBeEnum
Rulesets	All, Changed Behavior, Suggestions
Exakat since	2.4.4
PHP Version	8.1
Severity	Minor
Time To Fix	Quick (30 mins)
Precision	Medium
Available in	Entreprise Edition, Exakat Cloud