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Detailed explanation of steps to implement php+ajax file upload without refresh
- php中世界最好的语言Original
- 2018-05-18 14:54:161889browse
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
<form id="uploadform" enctype="multipart/form-data" name="uploadform" method="post" > <input id="fileToUpload" type="file" name="fileToUpload" class="uploadinput" > <input id="add_file" type="button" value="提交"> </form>
AjaxFileUpload achieves better asynchronous file upload effect and is easy to use:
<!DOCTYPE html>
<html>
<head>
<title></title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<script type="text/javascript" src="http://www.phpddt.com/usr/themes/dddefault/jquery-1.4.2.min.js"></script>
<script type="text/javascript" src="ajaxfileupload.js"></script>
</head>
<script>
jQuery(function(){
$("#buttonUpload").click(function(){
//加载图标
/* $("#loading").ajaxStart(function(){
$(this).show();
}).ajaxComplete(function(){
$(this).hide();
});*/
//上传文件
$.ajaxFileUpload({
url:'upload.php',//处理图片脚本
secureuri :false,
fileElementId :'fileToUpload',//file控件id
dataType : 'json',
success : function (data, status){
if(typeof(data.error) != 'undefined'){
if(data.error != ''){
alert(data.error);
}else{
alert(data.msg);
}
}
},
error: function(data, status, e){
alert(e);
}
})
return false;
})
})
</script>
<body>
<input id="fileToUpload" type="file" size="20" name="fileToUpload" class="input">
<button id="buttonUpload">上传</button>
</body>
</html>
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 of processing file upload 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 a syntax error
3. SyntaxError: invalid property id error
If this error occurs, you need to check whether the propertyID 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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The above is the detailed content of Detailed explanation of steps to implement php+ajax file upload without refresh. For more information, please follow other related articles on the PHP Chinese website!