foolab.ca | @foolabca Cyclomatic Complexity Bulgaria PHP, Sofia - October 8, 2016 

Execution Paths public function getShipping() { if ($this->subtotal >= 40) { return 0; } return $this->standardShipping; } 2 

Execution Paths public function getShipping() { if ($this->subtotal >= 40) { return 0; } return $this->standardShipping; } 3 Path 1 Path 2 

Decision Branches 4 start product loop free shipping? end 

Decision Branches 5 start product loop free shipping? end 

Cyclomatic complexity = edges − nodes +
 2 * connected components 

Decision Branches 7 start product loop free shipping? end ◦ Edges ◦ Nodes ◦ Connected components. 

Decision Branches 8 start product loop free shipping? end ◦ Edges ◦ Nodes ◦ Connected components. 

Decision Branches 9 start product loop free shipping? end ◦ Edges ◦ Nodes ◦ Connected components. 

Cyclomatic complexity = 9 − 8 + 2 * 1 = 3 

Zero Times foreach ($products as $product) { $total = $product->price * $product->quantity; } $tax = $total * ... 11 

Multiple Times $total = 0; foreach ($products as $product) { $total = $product->price * $product->quantity; } $tax = $total * ... 12 

Multiple Times $total = 0; foreach ($products as $product) { $total += $product->price * $product->quantity; } $tax = $total * ... 13 

@afilina afilina.com