我为应用程序构建了一个搜索表单,它目前只在应该有倍数的时候撤回结果。我确信这是愚蠢的,并且想知道是否有人可以告诉我我做错了什么。
以下是完整代码:
<?php
// php search data in mysql database using PDO
// set data in input text
$TaskId = "";
$ClientId="";
$TaskName = "";
$TaskDescription = "";
$TaskStartAt = "";
if(isset($_POST['Find']))
{
// connect to mysql
try {
$pdoConnect = new PDO("mysql:host=localhost;dbname=tt","root","root");
} catch (PDOException $exc) {
echo $exc->getMessage();
exit();
}
// id to search
//$TaskId = $_POST['TaskId'];
$ClientId = $_POST['ClientId'];
// date to search
//$DateCreated = $_POST['DateCreated'];
// mysql search query
$pdoQuery = "SELECT *
FROM tasks t
left join users u using (UserId)
left join clients cl using (ClientId)
WHERE t.isdeleted = 0 and ClientId = :ClientId";
$pdoResult = $pdoConnect->prepare($pdoQuery);
//set your id to the query id
$pdoExec = $pdoResult->execute(array(":ClientId"=>$ClientId));
if($pdoExec)
{
// if id exist
// show data in inputs
if($pdoResult->rowCount()>0)
{
echo '<table>';
foreach
($pdoResult as $rows)
{
//$TaskId = $row['TaskId'];
$ClientId = $rows['ClientId'];
// $TaskName = $row['TaskName'];
// $TaskDescription = $row['TaskDescription'];
}
echo '</table>';
}
// if the id not exist
// show a message and clear inputs
}else{
echo 'ERROR Data Not Inserted';
}
}
?>
<!DOCTYPE html>
<html>
<head>
<title>Task Tracker</title>
<link rel="stylesheet" href="css/table.css" type="text/css" />
<link rel="stylesheet" href="assets/demo.css">
<link rel="stylesheet" href="assets/header-fixed.css">
<link href='http://fonts.googleapis.com/css?family=Cookie' rel='stylesheet' type='text/css'>
<script type="text/javascript">
//Display the Month Date and Time on login.
function display_c(){
var refresh=1000; // Refresh rate in milli seconds
mytime=setTimeout('display_ct()',refresh)
}
function display_ct() {
var strcount
var x = new Date()
document.getElementById('ct').innerHTML = x;
tt=display_c();
}
</script>
</head>
<body>
<header class="header-fixed">
<div class="header-limiter">
<h1><a href="#">Task Tracker</a></h1>
<nav>
<a href="dashboard.php" class =>Dashboard</a>
<a href="addtask.php" class=>Task Management</a>
<a href="configuration.php" class =>Configuration</a>
<a href="logout.php" class =>Logout</a>
<a href="search.php" class ="selected">Reports & Analytics</a>
</nav>
</nav>
</div>
</header>
<title> Query a task</title>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
</head>
<form action="search.php" method="post">
<!-- Enter a Task Id : <input type="text" name="TaskId" value=""> <br><br> -->
Enter a Client Id : <input type="text" name="ClientId" value="<?php echo $ClientId;?>"><br><br>
<input type="submit" name="Find" value="Find Data">
<br> </br>
<table border="0">
<tr COLSPAN=2 BGCOLOR="lightblue">
<td>Id</td>
<td>Client</td>
<td>Task Name</td>
<td>Task Description</td>
<td>Hours</td>
<td>Date Created</td>
<td>Who Completed Task</td>
</tr>
<?php
{
if($pdoResult->rowCount()>0)
{
echo "<tr>".
"<td>".$rows["TaskId"]."</td>".
"<td>".$rows["ClientName"]."</td>".
"<td>".$rows["TaskName"]."</td>".
"<td>".$rows["TaskDescription"]."</td>".
"<td>".$rows["Hours"]."</td>".
"<td>".$rows["DateCreated"]."</td>".
"<td>".$rows["UserName"]."</td>".
"</tr>";
}
else{
echo 'No data associated with this Id';
}
}
?>
</table>
</form>
</body>
</html>
答案 0 :(得分:4)
快速浏览一下,似乎只是你将功能分得太多了。
在页面顶部,建立数据库连接并检索结果集。然后通过PDO Statement对象回显table
元素foreach
,并将当前行的内容分配给变量$rows
。注意:当前行的内容。
在页面的下方,echo
使用$rows['field']
foreach
个别字段,但您执行此操作 $rows
循环。由于每次循环循环时$_POST['Find']
都会被重新填充,并且由于在循环完成后你没有销毁变量,所以你最后会得到一个仍然包含结果集最后一行的变量。
您需要将实际打印每个单独行内容的位置放在循环中,循环遍历语句对象以检索字段。另一方面,如果完全输入任何用户输入,你只想要这样做,所以整个事情仍然需要在检查是否设置$results
的第一个条件的正分支内。 ,就像下面的版本一样。
我从这里开始,将变量$_POST['Find']
指定为空字符串 - 如果用户根本没有发送表单,那么我们将输出该值。如果$results
不为空,那么我们搜索数据库,遍历结果集,在此循环中创建HTML字符串,并将结果存储在execute()
变量中。如果没有返回任何行或者$rows
调用完全失败,我们抛出异常由异常处理程序处理(您必须在中央级别为整个项目定义),传递一般错误要显示给用户的消息。
请注意,我还删除了许多无关的内容和注释,以使相关位更清晰,并将$row
变量重命名为<?php
// Set the global exception handler—should of course be done
// in a global boilerplate file, rather than for each file
set_exception_handler('your_exception_handler_here');
$results = "";
if(!empty($_POST['Find']))
{
$pdoConnect = new PDO("mysql:host=localhost;dbname=tt","root","root");
$pdoConnect->setAttribute( PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION );
$ClientId = $_POST['ClientId'];
$pdoQuery = "SELECT *
FROM tasks t
left join users u using (UserId)
left join clients cl using (ClientId)
WHERE t.isdeleted = 0 and ClientId = :ClientId";
$pdoResult = $pdoConnect->prepare($pdoQuery);
$pdoExec = $pdoResult->execute(array(":ClientId"=>$ClientId));
if($pdoResult->rowCount()>0)
{
$results = '<table border="0">
<tr COLSPAN=2 BGCOLOR="lightblue">
<td>Id</td>
<td>Client</td>
<td>Task Name</td>
<td>Task Description</td>
<td>Hours</td>
<td>Date Created</td>
<td>Who Completed Task</td>
</tr>';
foreach ($pdoResult as $row)
{
$ClientId = $row['ClientId'];
$results .= "<tr>".
"<td>".$row["TaskId"]."</td>".
"<td>".$row["ClientName"]."</td>".
"<td>".$row["TaskName"]."</td>".
"<td>".$row["TaskDescription"]."</td>".
"<td>".$row["Hours"]."</td>".
"<td>".$row["DateCreated"]."</td>".
"<td>".$row["UserName"]."</td>".
"</tr>";
}
$results .= "</table>";
} else {
$return = '<span class="error_message">No data associated with this Id</span>');
}
}
?>
<!DOCTYPE html>
<html>
<head>
<title>Task Tracker</title>
</head>
<body>
<title>Query a task</title>
<form action="search.php" method="post">
Enter a Client Id : <input type="text" name="ClientId" value="<?php echo $ClientId;?>"><br><br>
<input type="submit" name="Find" value="Find Data">
</form>
<?php
echo $results;
?>
</body>
</html>
,以明确表示它已填充在循环内,它包含一个行,而不是所有行。
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