php+jquery Ajax asynchronous upload image (ajaxSubmit) example

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php+jquery Ajax asynchronous upload image (ajaxSubmit) example_PHP tutorial

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Jul 13, 2016 am 10:47 AM

ajax upload under picture Example asynchronous us

Let’s take a look at an example of php+jquery Ajax asynchronous image upload (ajaxSubmit). This time we really use ajax instead of using iframe or the like.

The effect is as follows

The code is as follows

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index.php file

php combines jquery to asynchronously upload images (ajaxSubmit). The following is the submission page code:

Ajax asynchronous upload of images

上传文件

doupfiles.php file

The code is as follows

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代码如下

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/*
* 1:成功上传
*-1:文件超过规定大小
*-2:文件类型不符
*-3:移动文件出错
*/
if(is_uploaded_file($_FILES['upfile']['tmp_name'])){

$photo_types=array('image/jpg', 'image/jpeg','image/png','image/pjpeg','image/gif','image/bmp','image/x-png');//定义上传格式
$max_size=700000; //上传照片大小限制,默认700k
$photo_folder="upload/".date("Y")."/".date("m")."/".date("d")."/"; //上传照片路径
///////////////////////////////////////////////////开始处理上传
if(!file_exists($photo_folder))//检查照片目录是否存在
{
mkdir($photo_folder, 0777, true); //mkdir("temp/sub, 0777, true);
}

$upfile=$_FILES['upfile'];
$name=$upfile['name'];
$type=$upfile['type'];
$size=$upfile['size'];
$tmp_name=$upfile['tmp_name'];

$file = $_FILES["upfile"];
$photo_name=$file["tmp_name"];
//echo $photo_name;
$photo_size = getimagesize($photo_name);

if($max_size < $file["size"])//检查文件大小
echo "-1"; //echo "<script>alert('对不起，文件超过规定大小!');history.go(-1);</script>";
if(!in_array($file["type"], $photo_types))//检查文件类型
echo "-2"; //echo "<script>alert('对不起，文件类型不符!');history.go(-1);</script>";
if(!file_exists($photo_folder))//照片目录
mkdir($photo_folder);
$pinfo=pathinfo($file["name"]);
$photo_type=$pinfo['extension'];//上传文件扩展名
$photo_server_folder = $photo_folder.time().".".$photo_type;//以当前时间和7位随机数作为文件名，这里是上传的完整路径

if(!move_uploaded_file ($photo_name, $photo_server_folder))
            {
             echo "-3"; //echo "移动文件出错";
                exit;
            }
$pinfo=pathinfo($photo_server_folder);
$fname=$pinfo['basename'];
echo "1";   //echo " 已经成功上传：".$photo_server_folder."
";

}
?>

/*
* 1: Successfully uploaded
*-1: The file exceeds the specified size
*-2: File type does not match
*-3: Error moving file
*/
if(is_uploaded_file($_FILES['upfile']['tmp_name'])){ $photo_types=array('image/jpg', 'image/jpeg','image/png','image/pjpeg','image/gif','image/bmp','image/x-png '); //Define upload format
$max_size=700000;           $photo_folder="upload/".date("Y")."/".date("m")."/".date("d")."/"; //Upload photo path
////////////////////////////////////////////////////// /Start processing upload
If(!file_exists($photo_folder))//Check whether the photo directory exists
                                  {
              mkdir($photo_folder, 0777, true); //mkdir("temp/sub, 0777, true);
} $upfile=$_FILES['upfile'];
$name=$upfile['name'];
$type=$upfile['type'];
$size=$upfile['size'];
$tmp_name=$upfile['tmp_name']; $file = $_FILES["upfile"];
$photo_name=$file["tmp_name"];
//echo $photo_name;
$photo_size = getimagesize($photo_name); if($max_size < $file["size"])//Check file size
Echo "-1"; // echo "& lt; script & gt; alert ('Sorry, files exceed the specified size!'); History.go (-1); & lt; /script & gt;"
if(!in_array($file["type"], $photo_types))//Check file type
                    echo "-2";                                                                                                                                                  //echo "<script>alert('Sorry, the file type does not match!'); history.go(-1);</script>";
if(!file_exists($photo_folder))//Photo directory
                      mkdir($photo_folder);
$pinfo=pathinfo($file["name"]);
$photo_type=$pinfo['extension'];//Upload file extension
$photo_server_folder = $photo_folder.time().".".$photo_type;//Using the current time and a 7-digit random number as the file name, here is the full path to upload
if(!move_uploaded_file ($photo_name, $photo_server_folder))
                                                        {
                echo "-3"; //echo "Error moving file";
exit;
             }
$pinfo=pathinfo($photo_server_folder);
$fname=$pinfo['basename'];
echo "1"; //echo " Uploaded successfully: ".$photo_server_folder."
";
}
?>

Finally, download the complete php+jquery Ajax asynchronous image upload (ajaxSubmit) example source code download address

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