1.2.340. Dependency Injection

A dependency injection is a typehinted argument, that is stored in a property by the constructor.

<?php

// Classic dependency injection
class foo {
    private $bar;

    public function __construct(Bar $bar) {
        $this->bar = $bar;
    }

    public function doSomething($args) {
        return $this->bar->barbar($args);
    }
}

// Without typehint, this is not a dependency injection
class foo {
    private $bar;

    public function __construct($bar) {
        $this->bar = $bar;
    }
}

?>

See also Understanding Dependency Injection.

1.2.340.1. Specs

Short name	Patterns/DependencyInjection
Rulesets	All, Appinfo, CE, Changed Behavior
Exakat since	0.11.6
PHP Version	All
Severity
Time To Fix
Precision	Very high
Features	dependency-injection, pattern
Available in	Entreprise Edition, Community Edition, Exakat Cloud