1.2.1214. Too Many Injections

When a class is constructed with more than four dependencies, it should be split into smaller classes.

<?php

// This class relies on 5 other instances.
// It is probably doing too much.
class Foo {
    public function __construct(
            A $a,
            B $b,
            C $c,
            D $d
            E $e ) {
        $this->a = $a;
        $this->b = $b;
        $this->d = $d;
        $this->d = $d;
        $this->e = $e;
    }
}

?>

Name	Default	Type	Description
injectionsCount	5	integer	Threshold for too many injected parameters for one class.

See also Dependency Injection Smells.

1.2.1214.1. Connex PHP features

• injection

1.2.1214.1.1. Suggestions

• Split the class into smaller classes. Try to do less in that class.

1.2.1214.1.2. Specs

Short name	Classes/TooManyInjections
Rulesets	All, Analyze, Changed Behavior
Exakat since	0.11.6
PHP Version	All
Severity	Minor
Time To Fix	Slow (1 hour)
Precision	Very high
Examples	NextCloud, Thelia
Available in	Entreprise Edition, Exakat Cloud