Il existe deux exemples de
Classe abstraite en php, l'un est simple et l'autre est plus complexe. Ce sont de bons exemples pour apprendre les classes abstraites PHP. Les amis dans le besoin peuvent s'y référer.
Classe abstraite php
<?php //定义一个抽象类 abstract class Staff { abstract function hire(); abstract function fire(); abstract function promote(); abstract function demote(); } ?>
Exemple de classe abstraite php
<?php 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 ); } 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 ); ?>
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