php 抽象クラスの例 php 抽象クラスの実装方法を学習します。

//定义一个抽象类
抽象クラスStaff
 {
抽象関数hire();
抽象関数fire();
抽象関数promote();
abstract function demote();
 }
?>

例2、php抽象类的例子

class Employee {
 private $title;
 private $lastName;
 private $firstName;
 protected $salary;
 private $ratio = 0;

 public function __construct($title, $firstName, $mainName, $salary ) {
 $this->title = $title;
 $this->firstName = $firstName;
 $this->lastName = $ mainName;
 $this->salary = $salary;
 }
    public function firstName() {
 return $this->firstName;
 }
    public function getlastName() {
 return $this->lastName;
 }
    public function setRatio( $num ) {
 $this->ratio=$num;
 }
    public function getRatio() {
 return $this->ratio;
 }

 public function getTitle() {
 return $this->title;
 }
    public function getSalary() {
 return ($this->salary - $this->ratio);
 }
    public function getFullName() {
 return "{$this->firstName}" 。 " {$this->lastName}";
 }
    function getsummaryLine() {
 $base = "$this->title ( $this->lastName, ";
 $base .= "$this->firstName )";
 return $base;
 }
}
//定义抽象类
abstract class EmployeeWriter {
 abstract static function write( Employee $shopProduct );
}
< p>class TextEmployeeWriter extends EmployeeWriter {
 static function write( Employee $shopEmployee ) {
 $str = "{$shopEmployee->getTitle()}: ";
 $str .= $shopEmployee->getFullName();
 $str .= " ({$shopEmployee->getSalary()})n";
 print $str;
 }
}
 $developer1 = new Employee("A", "A1", "A2", 5.99 );
TextEmployeeWriter::write( $developer1 );
?>