Question

我在产品网站中使用会话。我的问题是如何发送单一产品数据表网站的网址。

在产品数据表网站中，当我点击索引网站中的产品图片时，我会填写会话：

<?php session_start(); include "connection.php";
$sql = mysql_query("SELECT * FROM products WHERE img = '".$_COOKIE['image_src']."'");

while ($f = mysql_fetch_array($sql))
{
    $_SESSION['fid'] = $f['id']; //product id
    $_SESSION['fimg'] = $f['image']; //product image
    $_SESSION['fname'] = $f['name']; //product name
    $_SESSION['fdecription'] = $f['decription']; //product description
    $_SESSION['fcategory'] = $f['category']; //product category
}
?>

比我写出会话（产品信息）的同一网站：

e.g：

<?php session_start(); print ($_SESSION[fname]);
echo "<img src='".$_SESSION['fimg']."' height='350' width='250'>";?>

但是这种方式总是最后点击的产品信息将在会话中。而且我无法同时打开多个产品的数据表。

Answer 1

您只需要为会话数组创建另一个“级别”：

<?php
session_start();
include "connection.php";
$sql = mysql_query("SELECT * FROM products WHERE img = '".$_COOKIE['image_src']."'");

# Create a counter variable
$counter = 0;

while ($f = mysql_fetch_array($sql))
{
    $_SESSION[$counter]['fid']         = $f['id']; //product id
    $_SESSION[$counter]['fimg']        = $f['image']; //product image
    $_SESSION[$counter]['fname']       = $f['name']; //product name
    $_SESSION[$counter]['fdecription'] = $f['decription']; //product description
    $_SESSION[$counter]['fcategory']   = $f['category']; //product category

    # Increment the counter
    $counter++;
}
?>

然后在要查看图像的页面上，只需循环该数组：

<?php

for( $i=0; $i<count($_SESSION); $i++ )
{
    ...
    echo '<img src="'.$_SESSION[$i]["fimg"].'">';
    ...
}

?>

Multi-dimensional Arrays

PHP Docs - Arrays

Answer 2

我解决了这个问题：

首先，我必须以这种方式调用页面：index.php?image_src=XY 然后我需要$_GET使用$_COOKIE。最后，通过这种方式，会话是不必要的。

<?php include "connection.php";
$sql = mysql_query("SELECT * FROM products WHERE img = '".$_GET['image_src']."'");

while ($f = mysql_fetch_array($sql))
{
    $fid = $f['id']; //product id
    $fimg = $f['image']; //product image
    $fname = $f['name']; //product name
    $fdecription = $f['decription']; //product description
    $fcategory = $f['category']; //product category
}
?>

我可以写出数据：

<?php echo "<img src='".$fimg."' height='350' width='250'>";
echo "$fdecription";
?>

如何在使用会话的地方发送网址？

2 个答案: