jsajax上传文件功能

<form enctype&＃61;"multipart/form-data"><input type&＃61;"file" id&＃61;"inputfile" name&＃61;"inputfile" class&＃61;"file-img-load" onchange&＃61;""><button type&＃61;"button" class&＃61;"btn btn-primary" onclick&＃61;"importByconfirm();" id&＃61;"confirm">确认button>
form>


function importByconfirm() {var file &＃61; $(&＃39;#inputfile&＃39;)[0].files[0];var data &＃61; new window.FormData();data.append(&＃39;inputfile&＃39;, file);$.ajax({type: &＃39;POST&＃39;,url: url,data: data,cache: false,processData: false,contentType: false,success: function (res) {if (res.result &＃61;&＃61; 1) {alert(res.msg);window.location.reload();} else {alert(res.msg);}},error: function (errMsg) {console.error("上传失败&＃xff1a;", errMsg);}});
}
php接收文件(yii框架)

use yii\web\UploadedFile;$uploader &＃61; UploadedFile::getInstanceByName(&＃39;inputfile&＃39;);