实施变数公众班

Question

class booking_diary { 

    $start_timeS="09:30"; 
    $bookingS_start_time= "19:00"; 
    $bookingS_frequency=30;`enter code here` 



    public $booking_start_time =$start_timeS ; // The time of the first slot in 
    public $booking_end_time =$bookingS_start_time; // The time of the last slot in 
    public $booking_frequency= $bookingS_frequency; // The slot frequency per hour,  

我可以这样做吗？

Answer 1

不可以。您不能在类块中放置自定义代码（这里是您的变量）。

如果您wan't到初始化类的字段，你可以使用类的构造函数

<?php 
class booking_diary { 

    public $booking_start_time; 
    public $booking_end_time; 
    public $booking_frequency; 

    public function __construct() { 
     $start_timeS="09:30"; 
     $bookingS_start_time= "19:00"; 
     $bookingS_frequency=30; 
     //`enter code here` 

     $this->booking_start_time = $start_timeS; 
     $this->booking_end_time = $bookingS_start_time; 
     $this->booking_frequency = $bookingS_frequency; 
    } 
} 

如果你想养活从外部瓦尔类，也许这样的事情会适合您的需要：

<?php 
class booking_diary { 

    public $booking_start_time; 
    public $booking_end_time; 
    public $booking_frequency; 

    public function __construct($booking_start_time, $booking_end_time, $booking_frequency) { 
     $this->booking_start_time = $booking_start_time; 
     $this->booking_end_time = $booking_end_time; 
     $this->booking_frequency = $booking_frequency; 
    } 
} 

// Somewhere in your code: 

$start_timeS="09:30"; 
$bookingS_start_time= "19:00"; 
$bookingS_frequency=30; 
//`enter code here` 

$instance = new booking_diary($start_timeS, $bookingS_start_time, $bookingS_frequency);