本文介绍了这是什么 PHP 语法?的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我最近看到了一些看起来像这样的示例 PHP 代码:
I recently saw some sample PHP code that looked like this:
$myObj->propertyOne = 'Foo'
->propertyTwo = 'Bar'
->MethodA('blah');
相对于:
$myObj->propertyOne = 'Foo';
$myObj->propertyTwo = 'Bar';
$myObj->MethodA('blah');
这是来自特定框架还是特定版本的 PHP，因为我从未见过它工作?
Is this from a particular framework or a particular version of PHP because I have never seen it work?
推荐答案
你看到的是fluent interface，但是你的代码示例是错误的.长话短说，fluent setter 应该返回 $this:
What you saw was fluent interface, however your code sample is wrong. To make long story short, fluent setter should return $this:
class TestClass {
private $something;
private $somethingElse;
public function setSomething($sth) {
$this->something = $sth;
return $this;
}
public function setSomethingElse($sth) {
$this->somethingElse = $sth;
return $this;
}
}
用法:
$sth = new TestClass();
$sth->setSomething(1)
->setSomethingElse(2);
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