Question

我遇到两个错误，我不知道如何解决这个问题。

我在第<：p>行收到错误“语法错误，未完成的类声明”

private $language;

我收到了“语法错误，意外'公开'，期待'EOF'”这一行：

public function getCurrencies()

这是整个代码：

class Driver extends Driver{

public static $url = "http://www.com/";
/* The method of posting data to the website */
public static $method = "GET";
/* The part of the url extending the domain name until the search term */
public static $url_searchbase = "search/searchresults.aspx?N=0&Ntt=";
/* The part of the url entailing the search term, deifining additional paramters */
public static $url_searchtail = "&Ntk=Primary&i=0&sw=n&ps=9999&pn=1";
private $currency;
private $language;
/* Allowed currencies */
$currencies = array("USD", "CAD");
/* Allowed languages */
$languages = array("ENU");

function __construct($currency, $language){
    if(setCurrency($currency) AND setLanguage($language)){
        return TRUE;
    } else {
        trigger_error("Currency '". $currency ."' or Language '". $language ."' not supported.", E_USER_ERROR);
        return FALSE;
    }
}

/*
 * Return an array of allowed currencies
 */
public function getCurrencies(){
    return $currencies;
}

/*
 * Set the currency
 */
function setCurrency($currency){
    if(in_array($currency, $this->$currencies)
    {
        $this->$currency = $currency;
        return TRUE;
    } else {
        trigger_error("Currency '". $currency ."' not supported.", E_USER_ERROR);
        return FALSE;
    }
}

/*
 * Return an array of allowed languages
 */
public function getLanguages(){
    return $languages;
}

/*
 * Set the language
 */
public function setLanguage($language){
        if(in_array($language, $this->$languages)
    {
        $this->$language = $language;
        return TRUE;
    } else {
        trigger_error("Language '". $language ."' not supported.", E_USER_ERROR);
        return FALSE;
    }
}

}

Answer 1

class Driver extends Driver毫无意义。我认为你有一个错误的名字。

此外，您不能将实际代码放在函数之外。

移动

/* Allowed currencies */
$currencies = array("USD", "CAD");
/* Allowed languages */
$languages = array("ENU");

进入__construct()函数并使用$this->var代替$var。

在if(in_array($currency, $this->$currencies)中错过了结束)。

if(in_array($language, $this->$languages)

相同

您也以不正确的方式访问成员变量。您需要使用$this->var而不是$this->$var来访问{em>名称存储在$var中的成员变量。

Answer 2

你有4个错误：

您的变量$ currency和$ languages没有范围。您需要声明它们是公共的，私有的还是受保护的。
你的课程延伸，这是不可能的，我认为你需要删除扩展的驱动程序行。
您的in_array函数（第39和60行）
您错过了班级的右大括号}。 编辑： 这是在stackoverflow中粘贴代码时引起的。

固定代码：

<?php
class Driver{

    public static $url = "http://www.com/";
    /* The method of posting data to the website */
    public static $method = "GET";
    /* The part of the url extending the domain name until the search term */
    public static $url_searchbase = "search/searchresults.aspx?N=0&Ntt=";
    /* The part of the url entailing the search term, deifining additional paramters */
    public static $url_searchtail = "&Ntk=Primary&i=0&sw=n&ps=9999&pn=1";
    private $currency;
    private $language;
    /* Allowed currencies */
    public $currencies = array("USD", "CAD");
    /* Allowed languages */
    public $languages = array("ENU");

    function __construct($currency, $language){
        if(setCurrency($currency) AND setLanguage($language)){
            return TRUE;
        } else {
            trigger_error("Currency '". $currency ."' or Language '". $language ."' not supported.", E_USER_ERROR);
            return FALSE;
        }
    }

    /*
     * Return an array of allowed currencies
     */
    public function getCurrencies(){
        return $currencies;
    }

    /*
     * Set the currency
     */
    function setCurrency($currency){
        if(in_array($currency, $this->$currencies))
        {
            $this->$currency = $currency;
            return TRUE;
        } else {
            trigger_error("Currency '". $currency ."' not supported.", E_USER_ERROR);
            return FALSE;
        }
    }

    /*
     * Return an array of allowed languages
     */
    public function getLanguages(){
        return $languages;
    }

    /*
     * Set the language
     */
    public function setLanguage($language){
            if(in_array($language, $this->$languages))
        {
            $this->$language = $language;
            return TRUE;
        } else {
            trigger_error("Language '". $language ."' not supported.", E_USER_ERROR);
            return FALSE;
        }
    }
}

Answer 3

/*
 * Set the currency
 */
function setCurrency($currency){
if(in_array($currency, $this->$currencies)

错过了结束)，setLanguage(..)

也是如此

同样class Driver extends Driver没有任何意义，应该只是class Driver

Answer 4

有一些错误：

您需要为private和$currencies类实例数组使用$languages（或其他一个可见性选项）。
您的setCurrency和setLanguage方法缺少第一个if(in_array(行的右括号。

另外，您是否打算使用名为driver的类扩展名为driver的类？（我非常怀疑你只想使用class Driver {。）

简单的PHP错误：语法错误，未完成的类声明

4 个答案: