我想通过MongoDB中的PHP界面更新我的旧条目。 首先，我从文本字段中获取数据，然后将其存储到变量中，然后使用这些变量更新Mongodb中的数据，这是我的代码，请帮助我，我尝试各种方式，但每次都失望。
<?php
if(isset($_REQUEST['btn']))
{
$a=$_REQUEST['textfield'];
$b=$_REQUEST['textfield2'];
$c=$_REQUEST['textfield3'];
$d=$_REQUEST['textfield4'];
$e=$_REQUEST['textfield5'];
$f=$_REQUEST['textfield6'];
$g=$_REQUEST['textfield7'];
$h=$_REQUEST['textfield8'];
$m = new MongoClient(); // connect to mongodb
$db = $m->app; // select a database named app
$collection = $db->lafaz;
$db->lafaz->update(array("_id"=> new MongoID($a)),$doct, array('multiple' => true));
header('Location:page.php');
}?>
<!doctype html>
<html>
<head>
<style type="text/css">
header a {
font-weight: bold;
font-family: Sarina;
font-size: 45pt;
font-style: oblique;
text-decoration: none;
text-shadow: 2px 2px #33CCFF;
color: #369;
}
</style>
<link href="form.css" rel="stylesheet" type="text/css" />
<meta charset="utf-8">
<title>Edit Word</title>
</head>
<body>
<div>
<header align="center"><a href="page.php">Tarmeem -e- Haraf</a> </header>
<nav align="center">
</nav>
<div align="right" >
<?php
$m = new MongoClient();
$db = $m->app;
$collection = $db->lafaz;
$id=$_REQUEST['_id'];
$cursor = $collection->find(array("_id"=> new MongoID($id)));
foreach ($cursor as $obj)
{
?>
<form action="#" method="post">
<table width="100%" class="top-table" >
<tr>
<td width="40%" align="right"><p>ID:</p></td>
<td width="3%"> </td>
<td width="57%" align="left">
<input class="tf" type="text" name="textfield" id="textfield" readonly value=" <?php echo $obj["_id"]; ?> " ></td>
</tr>
<tr>
<td align="right"><p>Encoding:</p></td>
<td> </td>
<td align="left">
<input class="tf" type="text" name="textfield2" id="textfield2" required value=" <?php echo $obj["Encoding"]; ?> " ></td>
</tr>
<tr>
<td align="right"><p>Pos:</p> </td>
<td> </td>
<td align="left">
<input class="tf" type="text" name="textfield3" id="textfield3" required value=" <?php echo $obj["Pos"]; ?> " ></td>
</tr>
<tr>
<td align="right"><p>Roman: </p></td>
<td> </td>
<td align="left">
<input class="tf" type="text" name="textfield4" id="textfield4" required value=" <?php echo $obj["Roman"]; ?> " ></td>
</tr>
<tr>
<td align="right"><p>Important: </p></td>
<td> </td>
<td align="left">
<input class="tf" type="text" name="textfield5" id="textfield5" required value=" <?php echo $obj["Important"]; ?> " ></td>
</tr>
<tr>
<td align="right"><p>Hindi: </p></td>
<td> </td>
<td align="left">
<input class="tf" type="text" name="textfield6" id="textfield6" required value=" <?php echo $obj["Hindi"];; ?> " ></td>
</tr>
<tr>
<td align="right"><p>English: </p></td>
<td> </td>
<td align="left">
<input class="tf" type="text" name="textfield7" id="textfield7" required value=" <?php echo $obj["English"]; ?> " ></td>
</tr>
<tr>
<td align="right"><p>Type: </p></td>
<td> </td>
<td align="left">
<input class="tf" type="text" name="textfield8" id="textfield8" required value=" <?php echo $obj["Type"]; ?> " ></td>
</tr>
</table>
<input name="btn" id="btn" class="button" type="submit" value="Save"></td>
<?php } ?>
</form>
</div>
</div>
</body>
</html>
答案 0 :(得分：1)
这是一个完整工作的页面，已注释，以便您可以关注我。你需要通过它的声音将PHP运行时更新到更新的版本，但这应该已经完成，特别是因为PHP目前总是向后兼容。
$m = new \MongoClient();
$db = $m->app;
$collection = $db->lafaz;
// Better to sometimes actually check the right array, especially if someone wants to attack
// you by tricking PHP into combining the REQUEST from the GET
if(isset($_POST['btn'])){
// We take the $_POST piece by piece, do a trim to strip white space
// and then we add it to the doc array ready for use in MongoDB
// Of course this is not good practice for production programs but
// it is somewhere to start
$doc = [];
foreach($_POST as $k => $v){
$doc[$k] = trim($v);
}
// This will detect if we are updating or not, if no a is set then no _id was passed
if(isset($doc['_id'])){
// Some validation to ensure that we have a valid MongoID, consider it free knowledge
try{
$_id = new \MongoId($doc['_id']);
}catch(\Exception $e){
throw new \Exception('The _id inputted was not valid: ' . var_export($doc['_id'], true));
}
// Unset the _id as to not raise an error
unset($doc['_id']);
// Could do an upsert here but, meh, I prefer the logic displayed here
$collection->update(["_id"=> $_id], ['$set' => $doc], ['multiple' => true]);
}else{
$collection->insert($doc);
}
// We redirect to somewhere
header('Location:page.php');
// stop further processing and just send the damn headers
exit();
}
// If there is a _id in the REQUEST array
if(isset($_REQUEST['_id'])){
// Some validation to ensure that we have a valid MongoID, consider it free knowledge
try{
$_id = new \MongoId($_REQUEST['_id']);
}catch(\Exception $e){
throw new \Exception('The _id inputted was not valid: ' . var_export($_REQUEST['_id'], true));
}
// We find the one we just did, btw your code atm means this never happens...
$cursor = $collection->find(["_id"=> new \MongoID($_id)]);
}else{
// We just find all
$cursor = $collection->find();
}
?>
<!doctype html>
<html>
<head>
<style type="text/css">
header a {
font-weight: bold;
font-family: Sarina;
font-size: 45pt;
font-style: oblique;
text-decoration: none;
text-shadow: 2px 2px #33CCFF;
color: #369;
}
</style>
<link href="form.css" rel="stylesheet" type="text/css" />
<meta charset="utf-8">
<title>Edit Word</title>
</head>
<body>
<div>
<header align="center"><a href="page.php">Tarmeem -e- Haraf</a> </header>
<nav align="center">
</nav>
<div align="right">
<!-- Add a new one form. There are better ways to do this but this is just to get it working -->
<form action="#" method="post">
<table width="100%" class="top-table" >
<tr>
<td align="right"><p>Encoding:</p></td>
<td> </td>
<td align="left">
<input class="tf" type="text" name="Encoding" id="textfield2" required></td>
</tr>
<tr>
<td align="right"><p>Pos:</p> </td>
<td> </td>
<td align="left">
<input class="tf" type="text" name="Pos" id="textfield3" required></td>
</tr>
<tr>
<td align="right"><p>Roman: </p></td>
<td> </td>
<td align="left">
<input class="tf" type="text" name="Roman" id="textfield4" required></td>
</tr>
<tr>
<td align="right"><p>Important: </p></td>
<td> </td>
<td align="left">
<input class="tf" type="text" name="Important" id="textfield5" required></td>
</tr>
<tr>
<td align="right"><p>Hindi: </p></td>
<td> </td>
<td align="left">
<input class="tf" type="text" name="Hindi" id="textfield6" required></td>
</tr>
<tr>
<td align="right"><p>English: </p></td>
<td> </td>
<td align="left">
<input class="tf" type="text" name="English" id="textfield7" required></td>
</tr>
<tr>
<td align="right"><p>Type: </p></td>
<td> </td>
<td align="left">
<input class="tf" type="text" name="Type" id="textfield8" required></td>
</tr>
</table>
<input name="btn" id="btn" class="button" type="submit" value="Create">
</form>
<?php foreach ($cursor as $obj){ ?>
<form action="#" method="post">
<table width="100%" class="top-table" >
<tr>
<td width="40%" align="right"><p>ID:</p></td>
<td width="3%"> </td>
<td width="57%" align="left">
<input class="tf" type="text" name="_id" id="textfield" readonly value="<?= $obj["_id"] ?>"/></td>
</tr>
<tr>
<td align="right"><p>Encoding:</p></td>
<td> </td>
<td align="left">
<input class="tf" type="text" name="Encoding" id="textfield2" required value="<?= $obj["Encoding"] ?> "/></td>
</tr>
<tr>
<td align="right"><p>Pos:</p> </td>
<td> </td>
<td align="left">
<input class="tf" type="text" name="Pos" id="textfield3" required value="<?= $obj["Pos"] ?>"/></td>
</tr>
<tr>
<td align="right"><p>Roman: </p></td>
<td> </td>
<td align="left">
<input class="tf" type="text" name="Roman" id="textfield4" required value="<?= $obj["Roman"] ?>"/></td>
</tr>
<tr>
<td align="right"><p>Important: </p></td>
<td> </td>
<td align="left">
<input class="tf" type="text" name="Important" id="textfield5" required value="<?= $obj["Important"] ?>"/></td>
</tr>
<tr>
<td align="right"><p>Hindi: </p></td>
<td> </td>
<td align="left">
<input class="tf" type="text" name="Hindi" id="textfield6" required value="<?= $obj["Hindi"] ?>"/></td>
</tr>
<tr>
<td align="right"><p>English: </p></td>
<td> </td>
<td align="left">
<input class="tf" type="text" name="English" id="textfield7" required value="<?= $obj["English"] ?>"/></td>
</tr>
<tr>
<td align="right"><p>Type: </p></td>
<td> </td>
<td align="left">
<input class="tf" type="text" name="Type" id="textfield8" required value="<?= $obj["Type"] ?>"/></td>
</tr>
</table>
<input name="btn" id="btn" class="button" type="submit" value="Save">
</form>
<?php } ?>
</div>
</div>
</body>
</html>
<?php