Question

我正试图抓住所有提交并通过产品ID传递的出价金额，我似乎无法让它工作，任何人都可以告诉我，我做错了吗？

我已经为它输出了视图类以及在DB类上的查询

我要做的是从出价表中获取所有出价并输出到屏幕通过传递用户点击产品的链接

<?php

class ProductView extends View {
    protected function displayContent() {
        if(isset($_GET['id'])) {
        //get the record from database
            $this -> product = $this -> model -> getProductByID($_GET['id']);
            $this -> bidprice = $this -> model ->allbids($_GET['id']);
                if(is_array($this -> product)) {
                    $html = $this -> displayProduct();
                    } else {

                       $html .= '<p>Sorry, that product is not available</p>';

                    }            
                        } else {
                         header("Location:index.php?page=error");

        }
            return $html;
    }


    private function displayProduct() {

            $html = '<div id="product">';
            $html .= '<img src="images/products/'.$this -> product['productImage'].'" alt="'.$this -> product['productName'].'" />';
            $html .= '<h3>'.$this -> product['productName'].'</h3>';
            $html .= '<p><strong>$'.$this -> product['productPrice'].'.00'.'</strong></p>';
            //.sprintf("%.2f" result was breaking the query placed .00. to give it currency rate.
            $html .= '<p>'.$this -> product['productDescription'].'</p>';
            $html .= '<p>'.$this -> bidprice['bidPrice'].'</p>';

            $html .= '</div>';
            $html .='<div id="space">';
            $html .='</div>';

        return $html;        
    }    
}



?>

数据库查询类

public function allbids($id){
        $qry = "SELECT userName , bidPrice as bidPrice FROM bids , users WHERE productID = $id";
        $rs = $this -> db -> query($qry);
        if($rs) {
            if($rs ->num_rows > 0) {
                $bid = $rs -> fetch_assoc();

            }
            return $bidPrice;

        } else {
            echo 'Error Executing Query';   
        }
        return false;
    }

Answer 1

我认为您刚刚从出价表中获取了单个记录，而且所有出价功能似乎都不正确，请尝试使用以下代码，让我知道是否为您工作。

<?php

class ProductView extends View {
protected function displayContent() {
    if(isset($_GET['id'])) {
    //get the record from database
        $this -> product = $this -> model -> getProductByID($_GET['id']);
        $this -> bidprice = $this -> model ->allbids($_GET['id']);
            if(is_array($this -> product)) {
                $html = $this -> displayProduct();
                } else {

                   $html .= '<p>Sorry, that product is not available</p>';

                }            
                    } else {
                     header("Location:index.php?page=error");

    }
        return $html;
}


private function displayProduct() {

        $html = '<div id="product">';
        $html .= '<img src="images/products/'.$this -> product['productImage'].'" alt="'.$this -> product['productName'].'" />';
        $html .= '<h3>'.$this -> product['productName'].'</h3>';
        $html .= '<p><strong>$'.$this -> product['productPrice'].'.00'.'</strong></p>';
        //.sprintf("%.2f" result was breaking the query placed .00. to give it currency rate.
        $html .= '<p>'.$this -> product['productDescription'].'</p>';
        /* here you have to place a for each loop that will fetch all the info for bid*/
        foreach($this -> bidprice as $val)
        {
            $html .= '<p> Bid Price'.$val['bidPrice'].'</p>';
            $html .= '<p> Bidded By'.$val['userName'].'</p>';
        }

        $html .= '</div>';
        $html .='<div id="space">';
        $html .='</div>';

    return $html;        
}

}

// your db function
public function allbids($id){
    $qry = "SELECT userName , bidPrice as bidPrice FROM bids , users WHERE productID = $id";
    $rs = $this -> db -> query($qry);
    if($rs) {
        if($rs ->num_rows > 0) {
            while($row = mysql_fetch_assoc($rs))
            {
                $bid[]= $row;
            }

        }
        return $bid[];

    } else {
        echo 'Error Executing Query';   
    }
    return false;
}
?>

Php查询无法从get？id加载查询

1 个答案: