我来自Java，希望像在Java中那样使用子类的构造函数，但在PHP中似乎不是这样。子对象的构造函数似乎不能覆盖父对象中构造的示例变量值。这里，父对象只被用于多个子类之间的公共方法，这些方法将扩展它。2父类永远不会被单独调用。
当我示例化一个新的TestPackage时，我只是从父类中得到初始化的错误值。

<?php
interface Package{
    public function getCode();
    public function decode($packageCode);
    public function getSetName();
    public function getSetNameLang();
    public function getSubsetType();
    public function getSubsetTypeLang();
    public function setSubsetType($typeCode);
    public function getPackageOptionsArray();
    public function getChoicesArray();
    public function getOptionStatus($index);
    public function setOptionStatus($index, $booleanStatus);
}
?>

ParentPackage.php

class ParentPackage implements Package{
    private int $packageCode;
    private int $subsetType;
    private String $setName;
    private String $setNameLang;
    private $packageOptionsArray;
    private $subsetTypeArray;

    public function __construct(){
        $this->packageCode = 0;
        $this->subsetType = 0;
        $this->setName = "Error: parentClass";
        $this->setNameLang = "Error: Parent Class";

        $this->packageOptionsArray = array("Error",   //too much stuff to pass
                                            "Error",  //to a constructor as a variable
                                            "Error",
                                            "Error",
                                            "Error",
                                            "Error",
                                            "Error",
                                            "Error",
                                            "Error",
                                            "Error",
                                            "Error",
                                            "Error",
                                            );
        
        $this->subsetTypeArray = array("Error: Initializer",   //16
                                        "Error: Initializer",  //32
                                        "Error: Initializer",  //48
                                        );

     //........A whole bunch more stuff that is too much to pass as a variable to a constructor
     //..... OR let's just say that I don't want to do it that way

    }

TestPackage.php

class TestPackage extends ParentPackage{

    public function __construct(){
        parent::__construct();
        $this->packageCode = 0;
        $this->subsetType = 0;
        $this->setName = "layeredarch";
        $this->setNameLang = "Layered Arch";

        $this->packageOptionsArray = array("Customized welcome sign (choice of trellis half arch or smooth half arch insert up to 25 words text)",
                                            "3 piece seating chart half arch set (print service for cards is available for a small additional fee)",
                                            "Table numbers 1-30",
                                            "Gold Card option04 with choice of Gifts & Cards sign",
                                            "5 Reserved signs",
                                            "Up to 2 Double Half Arch Small signs (Gifts & Cards, Take One, Dont Mind if I Do, In Loving Memory)",
                                            "Up to 2 Sunset Small signs (Please Sign Our Guestbook, Gifts & Cards, In Loving Memory)",
                                            "1 Double Half Arch Medium sign (Cheers, The Bar, Guestbook, or Custom Acrylic Text)",
                                            "1 Double Full Arch Medium sign (Signature Drinks, or Custom Acrylic Text)",
                                            "Unplugged Ceremony sign",
                                            "Hairpin Record Player Prop",
                                            "%22Mr & Mrs%22 Custom Head Table Keepsake is a free gift in addition to the items above"
                                            );
        
        $this->subsetTypeArray = array("Full Set",   //16
                                        "Pick Six",  //32
                                        "Pick Four" //48
                                        );

    }