Reprint-Sharing of ThinkPHP file upload class_PHP tutorial

The upload class uses the Net.UpdateFile class in the ORG class library package. The latest version of the upload class includes the following functions (some functions need to be combined with other class libraries in the ThinkPHP system):

1. Basic upload function

2. Support batch upload

3. Support generating image thumbnails

4. Custom parameter upload

5. Upload detection (including size, suffix and type)

6. Support upload type, attachment size, upload path definition

7. Support hash or date subdirectory saving of uploaded files

8. Upload images Security detection

9. Support naming rules for uploaded files

10. Support Hash verification of uploaded files

No special processing is required to use the upload function in ThinkPHP . For example, here is a form submission with attachment upload:

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< input type="text" NAME="name" >

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Public function upload(){ import(“ORG.Net.UploadFile”); $upload = new UploadFile(); // 实例化上传类 $upload->maxSize = 3145728 ; // 设置附件上传大小 $upload->allowExts = array(‘jpg’, ‘gif’, ‘png’, ‘jpeg’); // 设置附件上传类型 $upload->savePath = ‘./Public/Uploads/’; // 设置附件上传目录 if(!$upload->upload()) { // 上传错误 提示错误信息 $this->error($upload->getErrorMsg()); }else{ // 上传成功 获取上传文件信息 $info = $upload->getUploadFileInfo(); } // 保存表单数据 包括附件数据 $User = M(“User”); // 实例化User对象 $User->create(); // 创建数据对象 $User->photo = $info[0]["savename"]; // 保存上传的照片 根据需要自行组装 $User->add(); // 写入用户数据到数据库 $this->success(“数据保存成功！”); }

Note Enctype="multipart/form-data" must be added to the Form tag of the form before the file can be uploaded. Because the form is submitted to the upload operation method of the current module, we can add the following upload method in the module class:

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Public function upload(){

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import(“ORG.Net.UploadFile”); $upload = new UploadFile(); // 实例化上传类

import("ORG.Net.UploadFile" );$upload = new UploadFile(); // Instantiate the upload class$upload->maxSize = 3145728; // Set the attachment upload size$upload->allowExts = array(' jpg', 'gif', 'png', 'jpeg'); // Set attachment upload type$upload->savePath = './Public/Uploads/'; // Set attachment upload directory if(!$upload->upload()) { //Upload error prompt error message$this->error($upload->getErrorMsg());}else{ //Upload successful Get uploaded file information$info = $upload->getUploadFileInfo();}// Save form data including attachment data$User = M(“User”); // Example Convert User object $User->create(); // Create data object $User->photo = $info[0]["savename"]; // Save uploaded photos as needed Assembly$User->add(); // Write user data to the database$this->success("Data saved successfully! ”);}

First, instantiate the upload class

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import(“ORG.Net .UploadFile”);$upload = new UploadFile(); // Instantiate the upload class

After instantiating the upload class, you can set some upload attributes (parameters). The supported attributes are:

maxSize: The maximum file size for file upload (in bytes) Unit) Default is -1, no size limit

savePath: File saving path, if left blank, the path defined by the UPLOAD_PATH constant will be taken

saveRule: Save rule for uploaded files, must be a without any The function name of the parameter, for example, can be time, uniqid com_create_guid, etc., but it must be able to ensure that the generated file name is unique. The default is uniqid

hashType: Hash verification method for uploaded files, the default is md5_file

autoCheck: whether to automatically detect attachments, the default is automatic detection

uploadReplace: whether a file with the same name is overwritten

allowExts: file suffix allowed to be uploaded (leave blank to not limit), Use array settings, the default is an empty array

allowTypes: File types allowed to be uploaded (leave blank to not limit), use array settings, the default is an empty array

thumb: Whether image files need to be uploaded Perform thumbnail processing, the default is false

thumbMaxWidth: The maximum width of thumbnails, multiples are separated by commas

thumbMaxHeight: The maximum height of thumbnails, multiples are separated by commas

thumbPrefix: The file prefix of the thumbnail, the default is thumb_ (If you set multiple thumbnail sizes, please set multiple prefixes here)

thumbSuffix: The file suffix of the thumbnail, the default is empty (If you set multiple thumbnail sizes, please set multiple suffixes here)

thumbPath: The saving path of the thumbnail. If left blank, take the file upload directory itself

thumbFile: Specify the file name of the thumbnail

thumbRemoveOrigin: whether to delete the original image after generating the thumbnail

autoSub: whether to use a subdirectory to save the uploaded file

subType: subdirectory creation method, The default is hash, which can be set to hash or date

dateFormat: Specify the date format when the subdirectory mode is date

hashLevel: The level at which the subdirectory is saved, the default is one level

The above attributes can be set directly, for example:

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$upload->thumb = true $upload->thumbMaxWidth = “50,200″ $upload->thumbMaxHeight = “50,200″

The function of generating thumbnails requires the support of the Image class.

After setting the upload parameters, you can call the upload method of the UploadFile class to upload the attachment. If it fails, return false and use the getErrorMsg method to obtain the error message; if the upload is successful, you can obtain it by calling the getUploadFileInfo method. List of successfully uploaded attachment information. Therefore, the return value of the getUploadFileInfo method is an array, each element of which is the uploaded attachment information. Each attachment information is an array that records the following information, including:

key: the name of the form for uploading the attachment

savepath: the save path of the uploaded file

name: The original name of the uploaded file

savename: the saved name of the uploaded file

size: the size of the uploaded file

type: the MIME type of the uploaded file

extension : The suffix type of the uploaded file

hash: The hash verification string of the uploaded file

After the file is successfully uploaded, you can use these attachment information to perform other data access operations, such as saving Either to the current data table or to a separate attachment data table.

If you need to upload multiple files, you only need to modify the form and add the

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The file upload class of both methods of multi-attachment upload system can be automatically recognized. http://www.bkjia.com/PHPjc/444697.html

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http: //www.bkjia.com/PHPjc/444697.htmlTechArticleThe upload class uses the Net.UpdateFile class in the ORG class library package. The latest version of the upload class includes the following functions ( Some functions need to be combined with other class libraries of the ThinkPHP system): 1. Basic upload function 2...

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