我有一个页面,我可以在其中搜索作者写的书(基于我 2 个月前的作业进行的基本搜索)。我从下拉框中选择作者,然后按“提交”按钮,结果应该会出现。
这是页面的代码:
<?php
include ("includes/connections.php");
if($_POST)
{
if (!isset($_POST["authors"])){
header("Location: searchAuthor.php");
exit;
}
foreach ($_POST["authors"] as $author)
{
?????????
}
}
?>
<?php include ("includes/connections.php");
function dropdown($intIdField, $strfNameField, $strlNameField, $strTableName, $strOrderField, $strNameOrdinal, $strMethod="asc") {
echo "<select name=\"{$strNameOrdinal}[]\">\n";
echo "<option value=\"NULL\">Select Value</option>\n";
$strQuery = "SELECT $intIdField, $strfNameField, $strlNameField
FROM $strTableName
ORDER BY $strOrderField $strMethod";
$rsrcResult = mysql_query($strQuery) or die(mysql_error());
while($arrayRow = mysql_fetch_assoc($rsrcResult)) {
$strA = $arrayRow["$intIdField"];
$strB = $arrayRow["$strlNameField"] . " " . $arrayRow["$strfNameField"];
echo "<option value=\"$strA\">$strB</option>\n";
}
echo "</select>";
}
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Add Book Information</title>
<link href="back.css" rel="stylesheet" type="text/css" />
</head>
<body>
<h1>Search for Books of an Author</h1><table width="528" border="0" align="center">
<tr>
<td width="480"><span id="tip">*Hitting the "Search books of Author" button without filling the fields with an asterisk will just reset the form</span></td>
</tr>
</table>
<form method="post" action="<?php echo $_SERVER['PHP_SELF'];?>" id="formBook">
<table width="563" border="0" align="center">
<tr>
<td style="text-align: right"><label for="authors">Select an Author*:</label></td>
<td><?php dropdown("author_ID", "author_firstname", "author_lastname", "author", "author_lastname", "authors"); ?></td>
</tr>
<tr>
<td> </td>
<td> </td>
</tr>
<tr>
<td> </td>
<td><input type="submit" name="submit" id="submit" value="Search books of Author" /></td>
</tr>
<tr>
<td><div align="left"><img src="images/buttonleft.png" alt="previous" width="70" height="70" usemap="#Previous" border="0"></div></td>
<td><div align="right"><img src="images/buttonright.png" alt="next" width="70" height="70" usemap="#Next" border="0">
<map name="Previous">
<area shape="circle" coords="35,35,33" href="addSubject.php">
</map>
<map name="Next">
<area shape="circle" coords="35,35,33" href="addEdition.php">
</map>
</div></td>
</tr>
</table>
</form>
</body>
</html>
正如你所看到的,我把所有东西都放在一张桌子里(对于这样的小东西很方便)。我希望当我按下提交按钮时,选择要输入的作者将显示查询结果的方法。查询会在foreach
哪里执行??????是。然后我希望查询的结果用于在我的表中显示(通过添加更多行并通过 php 函数在每一行中插入一个结果)结果。
有没有办法只用php做到这一点?我不知道如何使用 Javascript 只是 php 和 html。即使我必须在另一个页面中插入查询结果并在那里显示所有内容,我也可以接受。
我还没有写查询。
实际上,foreach 是在作者写的每本书中放入一个变量。