PHP File Programming Synthesis Case Implementation of file upload
- 2020-07-21 07:13:02
- OfStack
PHP file upload
1, upload. php
2, uploadProcess php
3. Packaging:
1, upload. php
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>ddd</title>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
</head>
<body>
<!-- Be careful with file uploads :1 , want to have enctyp . 2 , method="post"-->
<form enctype="multipart/form-data" action="uploadProcess.php" method="post" >
<table>
<tr><td> Please fill in your user name </td><td><input type="text" name="username"></td></tr>
<tr><td> Please give a brief introduction to the document </td><td><textarea rows="7" cols="50" name="fileintro" style="width:300px;"></textarea></td></tr>
<tr><td> Please upload your file </td><td><input type="file" name="myfile"></td></tr>
<tr><td colspan="2"><input type="submit" value=" upload "><td></tr>
</table>
</form>
</body>
</html>
2, uploadProcess php
<?php
// receive
$username=$_POST['username'];
$fileintro=$_POST['fileintro'];
//echo $username.$fileintro;
// Get file information
/* echo "<pre>";
print_r($_FILES);
echo "</pre>";
*/
// Gets the size of the file
$file_size=$_FILES['myfile']['size'];
if($file_size>2*1024*1024){
echo "<script type='text/javascript'>window.alert(' The file cannot be greater than 2M')</script>";
exit();
}
// Get file type
$file_type=$_FILES['myfile']['type'];
if($file_type!="image/jpeg" && $file_type!="image/pjpeg"){
echo " The file type can only be jpg format ";
exit();
}
// Decide whether to upload or not OK
if(is_uploaded_file($_FILES['myfile']['tmp_name'])){
// Get the uploaded file Transfer to the directory you wish
$upload_file=$_FILES['myfile']['tmp_name'];
// Prevent image overwrite issues and create for each user 1 A folder
$user_path=$_SERVER['DOCUMENT_ROOT']."/file/up/".$username;
if(!file_exists($user_path)){
mkdir ($user_path);
}
//$move_to_file=$user_path."/".$_FILES['myfile']['name'];
// Prevent users from uploading the same username problem
$file_true_name=$_FILES['myfile']['name'];
$move_to_file=$user_path."/".time().rand(1,1000).substr($file_true_name,strripos($file_true_name,"."));
//echo $upload_file.$move_to_file;
// Chinese should be transcoded
if(move_uploaded_file($upload_file,iconv("utf-8","gb2312","$move_to_file"))){
echo $_FILES['myfile']['name']." Uploaded successfully ";
}else{
echo " Upload failed ";
}
}else{
echo " Upload failed ";
}
?>
3. Packaging:
<?php
class Upload{
public $upload_name; // Upload file name
public $upload_tmp_path; // Upload the file to the server temp The path
public $file_size;
public $file_type;
public $file_save_path;
function __construct(){
$this->upload_name=$_FILES['myfile']['name'];
$this->upload_tmp_path=$_FILES['myfile']['tmp_name'];
$this->file_size=$_FILES['myfile']['size'];
$this->file_type=$_FILES['myfile']['type'];
$this->allow_file_type = array('jpeg','jpg','png','gif','bmp','doc','zip','rar','txt','wps','xlsx','ppt');
$this->file_save_path=$_SERVER['DOCUMENT_ROOT']."/file/up/";
}
public function upload_file($username){
// Determine file size
if($this->file_size>2*1024*1024){
echo "<script type='text/javascript'>window.alert(' The file cannot be greater than 2M')</script>";
exit();
}
// Get file type
/* if($this->file_type!="image/jpeg" && $this->file_type!="image/pjpeg"){
echo " The file type can only be jpg format ";
exit();
}
*/ // Gets the extension of the file
$file_type=$this->getFileExt($this->upload_name);
if(!in_array($file_type,$this->allow_file_type)){
echo " Upload file type format error ";
exit();
}
// Decide whether to upload or not OK
if(is_uploaded_file($this->upload_tmp_path)){
// Prevent image overwrite issues and create for each user 1 A folder
$user_path=$this->file_save_path.$username;
if(!file_exists($user_path)){
mkdir ($user_path);
}
//$move_to_file=$user_path."/".$_FILES['myfile']['name'];
// Prevent users from uploading the same username problem
//$file_true_name=$_FILES['myfile']['name'];
$move_to_file=$user_path."/".time().rand(1,1000).substr($this->upload_name,strripos($this->upload_name,"."));
//echo $upload_file.$move_to_file;
// Chinese should be transcoded
if(move_uploaded_file($this->upload_tmp_path,iconv("utf-8","gb2312","$move_to_file"))){
echo $this->upload_name." Uploaded successfully ";
}else{
echo " Upload failed ";
}
}else{
echo " Upload failed ";
}
}
// Gets the extension of the file
public function getFileExt($filename){
$fileExt=pathinfo($filename);
return $fileExt["extension"];
}
}
?>