How to code methods

Methods i Object-Orienter Programming (OOP) are similiar to functions in PHP.

The syntax

public | private | protected] function functionName ([parameterList]) { 
  // Statements to execute 
}

A public method

public function getSummary() { 
  $maxLength = 25; 
  $summary = $this->description; 
  if (strlen($summary) > $maxLength) { 
    $summary = substr($summary, 0, $maxLength - 3) . '...'; 
  }
  return $summary
}

A private method

private function internationalizePrice($country = 'US') {
  switch ($country) {
    case 'US':
      return '$' . number_format($this->price, 2); 
    case 'FR': 
      return number_format($this->price, 2, ',' , '.') . ' EUR'; 
    default: 
      return number_format($this->price, 2); 
  } 
}

A method that accesses a property of the current object

public function showDescription() {
  echo $this->description;
}

A method that calls a method of the current object

public function showPrice($country = 'US') {
  echo $this->internationalizePrice($country);
}

    Description
      To code a method in a class, you code one of the access modifier keywords followed by the function keyword, the name of the method, an optional parameter list in a set of parentheses, and a block of code to execute.
By default, methods are public. As a result, if you omit the access modifier, the method is public. However, to make your code more consistent and readable, it’s generally considered a good practice to code an access modifier for all methods.

    

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