PHP file upload and error code summary_PHP tutorial-PHP Tutorial-php.cn

PHP file upload and error code summary_PHP tutorial

WBOY

Release： 2016-07-13 16:56:40

Original

1363 people have browsed it

This article summarizes the introduction to PHP file upload and error codes. Friends who need to learn can refer to this article.

Upload operation code

The code is as follows

Copy code

If($_FILES['myfile']['error'] > 0) { //Determine whether the file can be successfully uploaded to the server, 0 means the upload is successful
echo 'Error: ';

switch ( $_FILES['myfile']['error'] ) {
case UPLOAD_ERR_OK:
                         $response = 'There is no error, the file uploaded with success.';
break;
case UPLOAD_ERR_INI_SIZE:
                          $response = 'The uploaded file exceeds the upload_max_filesize directive in php.ini.';
break;
case UPLOAD_ERR_FORM_SIZE:
                        $response = 'The uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the HTML form.';
break;
case UPLOAD_ERR_PARTIAL:
                         $response = 'The uploaded file was only partially uploaded.';
break;
case UPLOAD_ERR_NO_FILE:
                        $response = 'No file was uploaded.';
break;
case UPLOAD_ERR_NO_TMP_DIR:
                        $response = 'Missing a temporary folder. Introduced in PHP 4.3.10 and PHP 5.0.3.';
break;
case UPLOAD_ERR_CANT_WRITE:
                            $response = 'Failed to write file to disk. Introduced in PHP 5.1.0.';
break;
case UPLOAD_ERR_EXTENSION:
                             $response = 'File upload stopped by extension. Introduced in PHP 5.2.0.';
break;
                   default:
                     $response = 'Unknown error';
break;
          }
echo $response;
Exit; //If $_FILES['myfile']['error'] is greater than 0, there is an error, output the error message and exit the program
}

//Get the main type and subtype of the MIME type of the uploaded file
List($maintype,$subtype)=explode("/",$_FILES['myfile']['type']);

If ($maintype=="text") { //Text files cannot be uploaded through main type restrictions, such as .txt.html.php and other files

echo 'Problem: Unable to upload text file. ';
exit; //Exit the program if the user uploads a text file
}

$upfile = './uploads/'.time().$_FILES['myfile']['name']; //Define the location and new file name after uploading

If ( is_uploaded_file($_FILES['myfile']['tmp_name']) ) { //Determine whether it is an uploaded file

If ( !move_uploaded_file($_FILES['myfile']['tmp_name'], $upfile) ) { //Move files from
echo 'Problem: The file cannot be moved to the specified directory. ';
exit;
          }
}else{
echo 'Problem: The uploaded file is not a legal file: ';
echo $_FILES['myfile']['name'];
exit;
}

echo 'File: '.$upfile.' Uploaded successfully, size: '.$_FILES['myfile']['size'].'!
'; //If the file is uploaded successfully, output
?>

html

The code is as follows

Copy code

代码如下复制代码

"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

Some common error codes when uploading files