PHP无法重新声明由函数引起的类
[英]PHP Cannot redeclare class caused by a function
问题描述
I am getting a Cannot redeclare class error. 
我收到无法重新声明类错误。 This is the class file that is causing the error 这是导致错误的类文件
<?
class siteLoader{
public $view;
protected $page;
//vars for render head function
protected $arraySize;
protected $counter;
public function __construct(){}
//renders the view for the site
public function renderView($view){
$this->view = $view;
return "view/{$view}.view.php";
}
//renders the head part of the site
//public function renderHead($head){
public function renderHead($charset,$title,$description,$keywords,$applicationName,$css){
//$this->head = $head;
$this->charset = $charset;
$this->title = $title;
$this->description = $description;
$this->keywords = $keywords;
$this->applicationName = $applicationName;
$this->css = $css;
$arraySize = count($this->css, COUNT_RECURSIVE);
$counter =0;
echo '<head>
<meta charset="'.$charset.'">
<meta application-name="'.$applicationName.'">
<meta keywords="'.$keywords.'">
<meta description="'.$description.'">
<title>'.$title.'</title>
';
do{
echo '<link type="text/css" rel="stylesheet" href="css/'.$this->css[$counter].'.css">';
$counter++;
}while($counter != $arraySize);
echo '</head>';
return 0;
}
}
?>
The error only happens when I call for the renderView() function. 仅当我调用renderView（）函数时，才会发生该错误。 Below here is the index where I call for the class and the function. 下面是我调用类和函数的索引。
<!DOCTYPE html>
<html>
<?
if(!class_exists('siteLoader'))
{
require_once('/classes/html.class.php');
}
//$head = new html;
$html = new siteLoader;
$viewrender = new siteLoader;
$charset = "utf-8";
$title = "musicDB";
$description = "Not made yet";
$keywords = "music,DB,rock,Database,etc";
$applicationName = "Music DataBase";
$css = array('style');
$view = "main";
$html->renderHead($charset,$title,$description,$keywords,$applicationName,$css);
include $viewrender->renderView($view);
?>
</html>
As seen above I use require_once and check if the class is already loaded. 如上所示，我使用require_once并检查该类是否已加载。 The problem is probably in the renderView function because when i don't use that function everything works. 问题可能出在renderView函数中，因为当我不使用该函数时，一切正常。
1 个解决方案
解决方案1
0 已采纳 2015-11-24 09:09:50
what this line do include $viewrender->renderView($view); 这行内容包括$ viewrender-> renderView（$ view）; what is the name of the class in main.view.php see if the class name is siteloader main.view.php中该类的名称是什么，请查看该类名称是否为siteloader
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