約 500,000 行のテーブルがあり、クエリを実行して結果を取得する必要があります。基本的にユーザーはケース番号を入力するだけで、次のクエリを実行し、while ループを使用して結果を表示したい
if (!empty($_POST["casenum"])) {
$result2 = mysql_query("SELECT Box_Content.case_number, Transfer.number, Transfer.location, Box.number FROM Box_Content, Transfer, Box WHERE Box_Content.box_id = Box.id and Box.transfer_id = Transfer.id and Box_Content.case_number = '".$_POST['casenum']."'");
while ($row = mysql_fetch_array($result2)) {
echo "Case number: ".$casenum." text ";
echo "<br />";
}
} else {
echo "<h4>WARNING!!! Search criteria entered not valid. Please search again.</h4>";
}
ここで何が間違っていますか?
編集:
1 行のみが返された場合は機能しますが、2 行の場合はテーブル全体を印刷しようとしているようです...
$casenum = $_POST["casenum"];
echo "<br />The case number entered is: $casenum<br />";
if (!empty($_POST["casenum"]))
{
$result2 = mysql_query("SELECT Box_Content.case_number, Transfer.number as transfer_number, Transfer.location as transfer_location, Box.number as box_number FROM Box_Content, Transfer, Box WHERE Box_Content.box_id = Box.id and Box.transfer_id = Transfer.id and Box_Content.case_number = '" . $_POST['casenum'] . "'");
while($row = mysql_fetch_array($result2))
{
print_r ($row);
echo "<br />";
echo "<b>Case number: </b>" . $row['case_number'] ."<br />";
echo "<b>Transfer number: </b>" . $row['transfer_number'] ."<br />";
echo "<b>Transfer location: </b>" . $row['transfer_location'] ."<br />";
echo "<b>Box number: </b>" .$row['box_number'] ."<br />";
}
}
else
{
echo "<h4>WARNING!!! Search criteria entered not valid. Please search again.</h4>";
}
var_dump($_POST);