The switch statement should be used only to clearly define some new branches in the control flow. As soon as a case clause contains too many statements this highly decreases the readability of the overall control flow statement. In such case, the content of case clause should be extracted in a dedicated function

Noncompliant Code Example

The following code snippet illustrates this rule with the default threshold of 5:

switch ($var) {
  case 0:  // 6 lines till next case
    methodCall1();
    methodCall2();
    methodCall3();
    methodCall4();
    break;
  default:
    break;
}

Compliant Solution

switch ($var) {
  case 0:
    doSomething();
    break;
  default:
    break;
}

function doSomething(){
  methodCall1("");
  methodCall2("");
  methodCall3("");
  methodCall4("");
}