ユーザーがリンクをクリックしたときにクエリ文字列を渡そうとしています。
指示された次のページで、mysql から特定の製品 (クエリ文字列パラメーター) の詳細を取得します。
以下は私のコードですが、どうすればそれを行うことができますか?
現在のページ：
<?php
// Write a series of five PHP statements to retrieve the data for all product items in the database
// Write a statement to prepare the SQL SELECT statement
$sql = "SELECT skuCode, brand, model FROM productItem;";
// Write a statement to open a connection to MySQL server
$link = mysql_connect("localhost", "root", "password");
// Write a statement to select the required database
mysql_select_db("is1112t4q3", $link);
// Write a statement to send the SQL statement to the MySQL server for execution and retrieve the resultset
$resultset = mysql_query($sql);
// Write a statement to close the connection
mysql_close($link);
// Write a suitable expression for the while loop to iterate through each data row in the resultset.
// Each data row represents one product item that you need to display
while($row = mysql_fetch_array($resultset))
{
// Write a echo command to display the summary information for each product item. The required attributes are
// indicated in the HTML table header row.
// The image that is displayed should be the first image of each product item, e.g., MP300001_1.jpg.
// The Action column should contain a hyperlink to viewProductItem.php where user can view the complete product information
// of the selected product item.
// You need to use a query string parameter to pass the SKU Code of the required product item to viewProductItem.php
echo("<tr><td>".$row[0].
"</td><td>".$row[1].
"</td><td>".$row[2].
"</td><td>"."<img src=images/".$row["skuCode"]."_1.jpg>".
"</td><td><a href=viewProductItem.php?var=skuCode>View</a>".
"</td></tr>");
}
?>
次のページ、このページは、リンクをクリックしたときに前のページから渡された skuCode を取得する必要があります<a href=viewProductItem.php?var=skuCode>View</a>。
<?php
// Complete the if expression using the isset function to determine whether the query string parameter skuCode has been provided
if(isset($_GET["skuCode"]))
{
// Write a series of five PHP statements to retrieve the data for the selected product item from the database
// Write a statement to prepare the SQL SELECT statement. The SQL statement should have a WHERE condition
$sql = "SELECT * FROM productItem WHERE skuCode = '".mysql_real_escape_string($_GET["skuCode"])."';";
// Write a statement to open a connection to MySQL server
$link = mysql_connect("localhost", "root", "password");
// Write a statement to select the required database
mysql_select_db("is1112t4q3", $link);
// Write a statement to send the SQL statement to the MySQL server for execution and retrieve the resultset
$resultset = mysql_query($sql);
// Write a statement to close the connection
mysql_close($link);
// The statement below will retrieve the first data row in the resultset.
// Note that we are only expecting at most one data row since we are filtering by the primary key skuCode
// mysql_fetch_array will an array of values corresponding to the fetched data row.
// If there is no matching data row, mysql_fetch_array will return FALSE
$row = mysql_fetch_array($resultset);
if($row)
{
// Write a series of echo commands to print out the complete information of the selected product item using a HTML table
echo("<tr><td>".$row[0].
"</td><td>".$row[1].
"</td><td>".$row[2].
"</td><td>"."<img src=images/".$row["skuCode"]."_1.jpg>".
"</td><td><a href=viewProductItem.php>View</a>".
"</td></tr>");
}
}
else
{
echo("<h3 style=\"color: red;\">Product item ".$_GET["skuCode"]." does not exist</h3>");
}
}
else
{
echo("<h3 style=\"color: red;\">No product item has been selected</h3>");
}