Example code sharing of PHP template method pattern
Template Method Pattern:
The Template Method pattern defines the steps of an algorithm and allows subclasses to provide implementations for one or more steps. Template method pattern: Define the skeleton of an
algorithm in a method, and defer some steps to subclasses. The template method allows subclasses to Redefine certain steps in the algorithm.
##
<?php
// 模板方法模式
function echoLine($msg) {
echo $msg, '<br/>';
}
abstract class TemplateBase
{
abstract function step1();
abstract function step2();
abstract function step3();
public function doAction() {
$this->step1();
if(!$this->skipStep2()) {
$this->step2();
}
$this->step3();
}
/**
* 钩子方法
*/
public function skipStep2() {
return false;
}
}
class ConcreteTemplate extends TemplateBase
{
public function step1() {
echoLine('This is step 1');
}
public function step2() {
echoLine('This is step 2');
}
public function step3() {
echoLine('This is step 3');
}
// 用来控制是否跳过某些步骤
public function skipStep2() {
return false;
}
}
// test code
$ct = new ConcreteTemplate();
$ct->doAction();The above is the detailed content of Example code sharing of PHP template method pattern. For more information, please follow other related articles on the PHP Chinese website!
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