我上过一堂OOP课，其中包括类之间的消息传递。在教程中，这个家伙刚刚展示了它的var_dump输出版本。我想玩代码，从var_dump改为echo输出，因为这在将来会更有用。我只是找不到任何解决方案，所以你们是我唯一的选择。这是代码。
<?php
class Person {
protected $name;
public function __construct($name)
{
$this->name = $name;
}
public function getName()
{
return $this->name;
}
}
class Business {
// adding Staff class to Business
public function __construct(Staff $staff)
{
$this->staff = $staff;
}
// manual hire(adding Person to Staff)
public function hire(Person $person)
{
// add to staff
$this->staff->add($person);
}
// fetch members
public function getStaffMembers()
{
return $this->staff->members();
}
}
class Staff {
// adding people from Person class to "member" variable
protected $members = [];
public function __construct($members = [])
{
$this->members = $members;
}
// adding person to members
public function add(Person $person)
{
$this->members[] = $person;
}
public function members()
{
return $this->members;
}
}
// you can also create an array with this method
$bros = [
'Bro',
'Zdenko',
'Miljan',
'Kesten'
];
// pretty simple to understand this part
$employees = new Person([$bros]);
$staff = new Staff([$employees]);
$business = new Business($staff);
var_dump($business->getStaffMembers());
// or the print_r, it doesn't matter
print_r($business->getStaffMembers());
?>
尝试循环遍历数组并回显每个值。
$array = $something //your assignment here
foreach($array as $key => $value ){
echo "$key => $value'n";
}