在Codeigniter中上传文件
[英]File Uploading in Codeigniter
问题描述
Trying to Upload image through Codeigniter but its gives me an error: 
尝试通过Codeigniter上载图片，但出现错误：
You did not select a file to upload.
Controller: 控制器：
function register()
{
$this->load->view('register');
if(isset($_POST['btnRegister']))
{
if($_POST['txtupass']===$_POST['txtucpass'])
{
//$data = array('uname'=>$_POST['txtuname'], 'uemail'=>$_POST['txtuemail'], 'upass'=>$_POST['txtupass'], 'utype'=>'user', 'uphoto'=>$_FILES['txtPhoto']['name']);
//$this->user->register_user($data);
//----Upload----//
$fname = $_FILES['txtPhoto']['name'];
$config['upload_path'] = './uploads/';
$config['allowed_types'] = 'gif|jpg|png';
$config['max_size'] = '1024';
$config['max_width'] = '1024';
$config['max_height'] = '768';
$this->load->library('upload', $config);
//$FT = $_FILES['txtPhoto']['type'];
//$Ex =substr($FT, 6, strlen($FT));
//$FNAME = $_FILES['txtPhoto']['name'];
//$TempName = $_FILES['txtPhoto']['tmp_name'];
//move_uploaded_file($FNAME, './uploads/'.$FNAME.$Ex);
//-------------//
if ( ! $this->upload->do_upload()) { echo $this->upload->display_errors(); }
else
{
$this->upload->initialize($config);
$this->upload->do_upload($fname);
//$this->upload->data();
echo("<p>'".$_POST['txtuname']."' Registered Successfully!</b>");
}
echo("<p>'".$_POST['txtuname']."' Registered Successfully!</b>");
}
else
{
echo("<p style='color:red;'>Error: Password not match</p>");
}
}
}
View: 视图：
<body>
<h1 align="center">Registration User</h1>
<?php echo form_open_multipart('users/register');?>
<table border="1" align="center">
<tr>
<th align="left" style="color:white;">Username</th>
<td><input type="text" name="txtuname" style="width:270px" /></td>
</tr>
<tr>
<th align="left" style="color:white;">Email</th>
<td><input type="text" name="txtuemail" style="width:270px" /></td>
</tr>
<tr>
<th align="left" style="color:white;">Password</th>
<td><input type="password" name="txtupass" style="width:270px" /></td>
</tr>
<tr>
<th align="left" style="color:white;">Confirm Password</th>
<td><input type="password" name="txtucpass" style="width:270px" /></td>
</tr>
<tr>
<th align="left" style="color:white;">Select Photo</th>
<td><input type="file" name="txtPhoto" style="color:white;" /></td>
</tr>
<tr>
<td colspan="2" align="right"><input type="submit" name="btnRegister" value="Register" /></td>
</tr>
</table>
</form>
</body>
I have read many posts on Stackoverflow and applied all but getting same error. 我已经阅读了许多关于Stackoverflow的文章，并应用了所有文章，但都收到了相同的错误。 I am confuse what is the problem. 我混淆了问题所在。
4 个解决方案
解决方案1
1 已采纳 2014-11-21 07:20:02
You have to do initialize after loading upload library: 加载上传库后，您必须进行初始化：
$this->load->library('upload', $config);
$this->upload->initialize($config);
Make following changes in your code: 在代码中进行以下更改：
1 Remove this line 1删除此行
$fname = $_FILES['txtPhoto']['name'];
2 Make changes in your following code. 2在您的以下代码中进行更改。
if (!$this->upload->do_upload('txtPhoto')) {
echo $this->upload->display_errors();
} else {
print_r($this->upload->data());
}
It's works on my PC. 它可以在我的PC上运行。
解决方案2
1 2014-11-21 10:23:44
Your controller function should be - 您的控制器功能应为-
function register(){
$this->load->view('register');
if(isset($_POST['btnRegister']))
{
if($_POST['txtupass']===$_POST['txtucpass'])
{
$fname = $_FILES['txtPhoto']['name'];
$config['upload_path'] = './uploads/';
$config['allowed_types'] = 'gif|jpg|png';
$config['max_size'] = '1024';
$config['max_width'] = '1024';
$config['max_height'] = '768';
$this->load->library('upload', $config);
$this->upload->initialize($config);
if ( ! $this->upload->do_upload('txtPhoto')) {
print_r($this->upload->display_errors());
}
else
{
$data = array('upload_data' => $this->upload->data());
print_r($data);
echo("<p>'".$_POST['txtuname']."' Registered Successfully!</b>");
}
echo("<p>'".$_POST['txtuname']."' Registered Successfully!</b>");
}
else
{
echo("<p style='color:red;'>Error: Password not match</p>");
}
}
}
Also, Please check your upload path, as I can see the error is in upload path only. 另外，请检查您的上传路径，因为我看到的错误仅在于上传路径。 What does uploads directory exists in your application? 您的应用程序中存在什么上载目录？
解决方案3
0 2014-11-21 07:16:42
解决方案4
-1 2015-04-07 12:15:35
function insert()
{
$config['upload_path'] = './uploads/';
$config['allowed_types'] = 'gif|jpg|png';
$config['max_size'] = '1000';
$config['max_width'] = '1024';
$config['max_height'] = '768';
$this->load->library('upload', $config);
if (!$this->upload->do_upload()) {
$error = array('error' => $this->upload->display_errors());
$this->load->view('uploadv', $error);
} else {
$data = $this->upload->data();
$iname = $data['file_name'];
$name = $this->input->post('name');
$age = $this->input->post('age');
$this->Exam_mod->insert($name, $age, $img);
}
}
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