Detailed explanation of steps to implement php+ajax file upload without refresh

This time I will bring you php ajax without refreshFile uploaddetailed implementation steps, php ajax without refresh file uploadWhat are the precautions, the following is a practical case, one Get up and take a look.

Form format for file upload

AjaxFileUpload achieves better asynchronous file upload effect and is easy to use:

       
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Upload can also pass parameters:

var data = { name: 'my name', description: 'short description' } $.ajaxFileUpload({ url: 'upload.php', secureuri: false, data: data, fileElementId: 'fileToUpload', dataType: 'json', success: function (data) { alert(data.msg); }, error: function (data) { alert("error"); } });

Main parameter description:

1. url represents the file path ofprocessing fileupload operation. You can test whether the URL can be directly accessed in the browser, as above: upload. php
2. fileElementId represents the file domain ID, as above: fileToUpload
3. Whether secureuri enables secure submission, the default is false
4. dataType data, generally choose json, the original ecology of javascript
5 、Processing function after successful submission
6、Error processing function for failed submission

Need to understand the relevant error prompts

1. SyntaxError: missing; before statement error

If this error occurs, you need to check whether the url path is accessible

2, SyntaxError: syntax error

If this error occurs, you need to check the PHP file that handles the submission operation Whether there is asyntax error

3. SyntaxError: invalid property id error

If this error occurs, you need to check whether thepropertyID exists

4. SyntaxError: missing } in XML expression error

If this error occurs, you need to check whether the file domain name is consistent or does not exist

5.Other custom errors

You can use the variable $error to print directly to check whether each parameter is correct, which is much more convenient than the invalid error prompts above.

I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the php Chinese website!

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