php - 简单的PHP错误: syntax error, unfinished class declaration

Question

我收到两个错误，但我不知道如何解决。

我在行中收到错误“语法错误，未完成的类声明”:

private $language;

我在行中收到“语法错误，意外的'public'，期望为'EOF'”:

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没有任何意义。我认为您弄错了名字之一。

同样，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");

到 __construct()函数中，并使用 $this->var代替 $var。

在 if(in_array($currency, $this->$currencies)中，缺少结尾的 )。

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

您还以错误的方式访问成员变量。您需要使用 $this->var而不是 $this->$var来访问其名称存储在 $var中的成员变量。