PHP file upload and error code summary_PHP tutorial

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

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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

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Some common error codes when uploading files

0 | UPLOAD_ERR_OK | File uploaded successfully
1 | UPLOAD_ERR_INI_SIZE | Size exceeds upload_max_filesize in php.ini.
2 | UPLOAD_ERR_FORM_SIZE | Size exceeds MAX_FILE_SIZE specified in HTML form.
3 | UPLOAD_ERR_PARTIAL | The file is not completely uploaded
4 | UPLOAD_ERR_NO_FILE | No file uploaded
5 | UPLOAD_ERROR_E | As expliained by @Progman, removed in rev. 81792
6 | UPLOAD_ERR_NO_TMP_DIR | Temporary folder not found
7 | UPLOAD_ERR_CANT_WRITE | Disk cannot be written
8 | UPLOAD_ERR_EXTENSION | File upload stopped by extension.

http://www.bkjia.com/PHPjc/631586.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/631586.htmlTechArticleThis 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 !DOCTYPE html PUBL...