Inspectopedia 2025.2 Help

Complex class should be refactored

Reports the classes that are too complex.

Class complexity is evaluated based on three metrics:

  • TCC (Tight class cohesion) — the measure of class cohesiveness (more is better).

  • WMC (Weighted Method count) — the sum of cyclomatic complexities for all methods in a class (less is better).

  • ATFD (Access to foreign data) — the number of properties from another class that are accessed in the current class (less is better).

Locating this inspection

By ID

Can be used to locate inspection in e.g. Qodana configuration files, where you can quickly enable or disable it, or adjust its settings.

PhpComplexClassInspection
Via Settings dialog

Path to the inspection settings via IntelliJ Platform IDE Settings dialog, when you need to adjust inspection settings directly from your IDE.

Settings or Preferences | Editor | Inspections | PHP | Refactoring opportunities

Inspection options

Here you can find the description of settings available for the Complex class should be refactored inspection, and the reference of their default values.

TCC threshold

Default value:

0.333
WMC threshold

Default value:

50
ATFD threshold

Default value:

5

Suppressing Inspection

You can suppress this inspection by placing the following comment marker before the code fragment where you no longer want messages from this inspection to appear:

//noinspection PhpComplexClassInspection

More detailed instructions as well as other ways and options that you have can be found in the product documentation:

Inspection Details

By default bundled with:

PhpStorm 2025.2, Qodana for PHP 2025.2,

Last modified: 18 September 2025