相关疑难解决方法(0)

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This is a collection of questions that come up every now and then about syntax in PHP. This is also a Community Wiki, so everyone is invited to participate in maintaining this list.

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It used to be hard to find questions about operators and other syntax tokens.¹
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在PHP中有两种不同的方法来访问方法,但有什么区别？

$response->setParameter('foo', 'bar');

和

sfConfig::set('foo', 'bar');

我假设->(用大于号或破坏号的破折号)用于变量的函数,而::(双冒号)用于类的函数.正确？

是=>赋值运算符仅用于一个阵列中分配的数据？这与=用于实例化或修改变量的赋值运算符形成对比吗？

我想更好地理解OOP中的基本概念.面向对象编程中的静态和动态变量和方法是什么？例如,使用$ this与双冒号(::)之间的区别是什么？

$ this($ this-> a_method())

• 好处: ？.
• 缺点:？......"这个"不是自我记录的,如:$this->method_from_an_extended_class().

双冒号(someclass :: a_method())

• 好处: ？
• 缺点:？