Question

我是 OOP 的新手。我创建了这段代码，我知道如何用这种方式调用它

$john = new people('Bla', 'bla');

并使用$john->boy();调用它但我想直接调用函数并传递特定的（对于boy ... $name, $beard for girl ... $name, $hair, $eyes）变量。

<?php

    class people {

        public $name;
        protected $hair;
        protected $eyes;
        protected $beard;

        public function __constructor($name, $hair, $eyes, $beard) {
            $this->name = $name;
            $this->hair = $hair;
            $this->eyes = $eyes;
            $this->beard = $beard;
        }

        public function getName() {

            return $this->name;
        }

        public function getHair() {

            return $this->hair;
        }

        public function getEyes() {

            return $this-eyes;
        }

        public function getBeard() {

            return $this->beard;
        }

        public static function boy() {

            $name = getName();
            $beard = getBeard();

            echo $name . ' has ' . $beard . ' beard';
        }

        public static function girl() {

            $name = getName();
            $hair = getHair();
            $eyes = getEyes();

            echo $name . ' has ' . $hair . ' hair and ' . $eyes . ' eyes';
        }
    }

并致电＆amp;直接输出函数名称：

people::boy('John', 'long');
people::boy('Steve', 'small');
people::girl( 'Eva', 'long', 'blue' );

Answer 1

与ka_lin sad一样，你不能从静态上下文中调用非静态方法;那么，你能为代码工作的是：

<?php

class people {
    protected $name;
    protected $hair;
    protected $eyes;
    protected $beard;

    public function __construct($name, $hair, $eyes, $beard) {
        $this->name = $name;
        $this->hair = $hair;
        $this->eyes = $eyes;
        $this->beard = $beard;
    }

    public function getName() {

        return $this->name;
    }

    public function getHair() {

        return $this->hair;
    }

    public function getEyes() {

        return $this->eyes;
    }

    public function getBeard() {

        return $this->beard;
    }

    public static function boy($name, $beard) {
        $boy   = new self($name, null, null, $beard);
        $name  = $boy->getName();
        $beard = $boy->getBeard();

        echo $name . ' has ' . $beard . ' beard' . PHP_EOL;
    }

    public static function girl($name, $hair, $eyes) {
        $girl = new self($name, $hair, $eyes, null);
        $name = $girl->getName();
        $hair = $girl->getHair();
        $eyes = $girl->getEyes();

        echo $name . ' has ' . $hair . ' hair and ' . $eyes . ' eyes' . PHP_EOL;
    }
}

people::boy('John', 'long');
people::boy('Steve', 'small');
people::girl( 'Eva', 'long', 'blue' );

PHP中的OOP，传递变量＆amp;直接输出函数名

1 个答案: