What are some best practices for optimizing PHP code to avoid unnecessary complexity?

Unnecessary complexity in PHP code can be avoided by following best practices such as using clear and concise variable names, breaking down complex tasks into smaller functions, and avoiding nested loops or conditionals whenever possible. Additionally, optimizing code by removing redundant or unused code can greatly improve performance. Example PHP code snippet: 

// Before optimization
function calculateTotal($items) {
  $total = 0;
  foreach ($items as $item) {
    if ($item['quantity'] > 0) {
      $subtotal = $item['price'] * $item['quantity'];
      $total += $subtotal;
    }
  }
  return $total;
}

// After optimization
function calculateTotal($items) {
  $total = 0;
  foreach ($items as $item) {
    $subtotal = $item['price'] * $item['quantity'];
    $total += $subtotal;
  }
  return $total;
}

Keywords

optimization PHP code complexity performance refactoring

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