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首先,我在這個論壇上發現了一些關於此問題的主題,但似乎無法在我的頁面上找到它......所以這就是爲什麼我問。如何從mysql檢索html制動器
我正在嘗試爲網頁製作圖片上傳腳本,允許某人上傳帶有描述信息的網頁。到目前爲止,我得到了上傳好,它被存儲到數據庫並顯示,但我遇到的問題是,從文本從textarea不會顯示剎車時,從mysql的數據retreiving ...
怎麼可以我解決這個問題?
這是upload.php的
<?php
// Start a session for error reporting
session_start();
// Call our connection file
require("includes/conn.php");
// Check to see if the type of file uploaded is a valid image type
function is_valid_type($file)
{
// This is an array that holds all the valid image MIME types
$valid_types = array("image/jpg", "image/jpeg", "image/bmp", "image/gif");
if (in_array($file['type'], $valid_types))
return 1;
return 0;
}
// Just a short function that prints out the contents of an array in a manner that's easy to read
// I used this function during debugging but it serves no purpose at run time for this example
function showContents($array)
{
echo "<pre>";
print_r($array);
echo "</pre>";
}
// Set some constants
// This variable is the path to the image folder where all the images are going to be stored
// Note that there is a trailing forward slash
$TARGET_PATH = "content/uploads/";
// Get our POSTed variables
$fname = $_POST['fname'];
$lname = $_POST['lname'];
$image = $_FILES['image'];
// Sanitize our inputs
$fname = mysql_real_escape_string($fname);
$lname = mysql_real_escape_string($lname);
$image['name'] = mysql_real_escape_string($image['name']);
// Build our target path full string. This is where the file will be moved do
// i.e. images/picture.jpg
$TARGET_PATH .= $image['name'];
// Make sure all the fields from the form have inputs
if ($fname == "" || $lname == "" || $image['name'] == "")
{
$_SESSION['error'] = "All fields are required";
header("Location: index.php");
exit;
}
// Check to make sure that our file is actually an image
// You check the file type instead of the extension because the extension can easily be faked
if (!is_valid_type($image))
{
$_SESSION['error'] = "You must upload a jpeg, gif, or bmp";
header("Location: index.php");
exit;
}
// Here we check to see if a file with that name already exists
// You could get past filename problems by appending a timestamp to the filename and then continuing
if (file_exists($TARGET_PATH))
{
$_SESSION['error'] = "A file with that name already exists";
header("Location: index.php");
exit;
}
// Lets attempt to move the file from its temporary directory to its new home
if (move_uploaded_file($image['tmp_name'], $TARGET_PATH))
{
// NOTE: This is where a lot of people make mistakes.
// We are *not* putting the image into the database; we are putting a reference to the file's location on the server
$sql = "insert into people (fname, lname, filename) values ('$fname', '$lname', '" . $image['name'] . "')";
$result = mysql_query($sql) or die ("Could not insert data into DB: " . mysql_error());
header("Location: images.php");
exit;
}
else
{
// A common cause of file moving failures is because of bad permissions on the directory attempting to be written to
// Make sure you chmod the directory to be writeable
$_SESSION['error'] = "Could not upload file. Check read/write persmissions on the directory";
header("Location: index.php");
exit;
}
?>
,這是一個需要時進入textarea的顯示與詳細描述和剎車的圖像的PHP:
<?php
// Get our database connector
require("includes/conn.php");
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Dream in code tutorial - List of Images</title>
</head>
<body>
<div>
<?php
// Grab the data from our people table
$sql = "select * from people";
$result = mysql_query($sql) or die ("Could not access DB: " . mysql_error());
while ($row = mysql_fetch_assoc($result))
{
echo "<div class=\"picture\">";
echo "<p>";
// Note that we are building our src string using the filename from the database
echo "<img src=\"content/uploads/" . $row['filename'] . "\" alt=\"\" /><br />";
echo $row['fname'] . " " . "<br />" . "<br />" . $row['lname'] . "<br />";
echo "</p>";
echo "</div>";
\t \t \t \t }
?>
</div>
</body>
</html>
和certenty,這是一個讓你輸入的詳細描述,並上傳的圖片中的index.php:
<?php
// Start a session for displaying any form errors
session_start();
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Dream in code tutorial</title>
<style type="text/css">
label
{
float: left;
text-align: right;
margin-right: 10px;
width: 100px;
color: black;
}
#submit
{
float: left;
margin-top: 5px;
position: relative;
left: 110px;
}
#error
{
color: red;
font-weight: bold;
font-size: 16pt;
}
</style>
</head>
<body>
<div>
<?php
if (isset($_SESSION['error']))
{
echo "<span id=\"error\"><p>" . $_SESSION['error'] . "</p></span>";
unset($_SESSION['error']);
}
?>
<form action="upload.php" method="post" enctype="multipart/form-data">
<p>
<label>Merk</label>
<input type="text" name="fname" size="50"/><br />
<label>beschrijving</label>
<textarea name="lname" style="width:250px;height:150px;"></textarea><br />
<label>Upload afbeelding</label>
<input type="file" name="image" /><br />
<input type="hidden" name="MAX_FILE_SIZE" value="5000000" />
<input type="submit" id="submit" value="Upload" />
</p>
</form>
</div>
</body>
</html>
我試着像使用和nl2br但是沒有什麼幾件事情似乎工作(可能是因爲我錯誤地使用它...)
完美地工作,所以這一定是爲什麼我沒有得到它的工作,我認爲它需要改變在images.php因爲這是我的輸出,從來沒有想過我上傳錯了...謝謝很多! – FGOD 2014-11-06 08:04:40
我確實有一些跟進問題,但這些與制動器的東西無關:所以我想我最好提出一個新的問題;)因爲我仍然需要在我的佈局中實現這一點,出於某種原因,它擰緊了佈局我的頁面 – FGOD 2014-11-06 08:06:03
沒關係,剛發現問題,忘記上傳css對佈局沒有多大幫助:p – FGOD 2014-11-06 08:13:15