1.2.1460. Wrong Typed Property Default

Property is typed, yet receives an incompatible value at constructor time.

Initialized type might be a new instance, the return of a method call or an interface compatible object.

PHP compiles such code, but won’t execute it, as it detects the incompatibility at execution time.

<?php

class X {
    private A $property;
    private B $incompatible;

    function __construct() {
        // This is compatible
        $this->property = new A();

        // This is incompatible : new B() expected
        $this->incompatible = new C();

    }
}

?>

See also Wrong Type Returned and Mismatch Type And Default.

1.2.1460.1. Related PHP errors

• Cannot use int as default value for parameter %s of type %s

• Cannot use int as default value for property %s::$%s of type %s

1.2.1460.2. Connex PHP features

• default-value

1.2.1460.2.1. Suggestions

• Remove the type hint of the property

• Fix the initialization call

• Use an interface for typehint

1.2.1460.2.2. Specs

Short name	Classes/WrongTypedPropertyInit
Rulesets	All, Analyze, CE, CI-checks, Class Review, LintButWontExec
Exakat since	2.0.9
PHP Version	With PHP 7.4 and more recent
Severity	Minor
Time To Fix	Quick (30 mins)
Precision	High
Note	This issue may lint but will not run
Available in	Entreprise Edition, Community Edition, Exakat Cloud