PHP implements multi-file upload program code_PHP tutorial

There is not much difference between PHP file upload and multi-file upload. For multi-file upload, we just change the form name into an array form, and use foreach traversal to achieve multi-file upload. For dynamic multi-file upload, just add a dynamic increase in js. For the multi-file upload box, just traverse the array when processing it in PHP.

The simplest example is as follows

The code is as follows

Copy code

代码如下	复制代码
Pictures:        foreach ($_FILES["pictures"]["error"] as $key => $error) {         if ($error == UPLOAD_ERR_OK) {             $tmp_name = $_FILES["pictures"]["tmp_name"][$key];             $name = $_FILES["pictures"]["name"][$key];             move_uploaded_file($tmp_name, "data/$name");         } } ?>

Pictures :


< ;input type="file" name="pictures[]" />

  foreach ($_FILES["pictures"]["error"] as $key => $error) {
  if ($ error == UPLOAD_ERR_OK) {
              $tmp_name = $_FILES["pictures"]["tmp_name"][$key];
                        $name = $_FILES["pictures"]["name"][ $key ]; >

Share examples from other friends below
Example 1

 代码如下

复制代码

//filename:multi_upload.php
if($ifupload)
{
$path=AddSlashes(dirname($PATH_TRANSLATED))."upload";
for($i=1;$i<=8;$i++)
{
$files="afile".$i;
if(${$files}!="none")
{
if(copy(${$files},$path.${$files."_name"}))
{
}
}
}
print "You have uploaded files successfully
";
print "Return";
exit;
}
?>

多文件上传

	文件1
	文件2
	文件3
	文件4
	文件5
	文件6
	文件7
	文件8
	确定(O) 取消(C)

If we want dynamic and uncertain multi-file upload, how can we implement it? There are also examples below

File upload code

代码如下

复制代码

view plaincopy to clipboardprint? " /> 文件上传列表 " /> 文件上传列表 Submit File code view plaincopy to clipboardprint? if ($_POST["submitfile"]!="") { $Path="./".date('Ym')."/"; if (!is_dir($Path))//Create path { mkdir($Path); } echo " "; for ($i=0;$i< ;count($filelist);$i++) { //The order of $_FILES["filelist"]["size"][$i] cannot be changed because fileist is a two-dimensional array if ($_FILES["filelist"]["size"][$i]!=0) { $File=$Path.date('Ymdhm')."_".$_FILES["filelist "]["name"][$i]; if (move_uploaded_file($_FILES["filelist"]["tmp_name"][$i],$File)) { echo "File uploaded successfully file Type: ".$_FILES["filelist"]["type"][$i]." "."File name:" .$_FILES["filelist"]["name"][$i]. " "; } else { echo "File name:".$_FILES["filelist"]["name"][$i]."Upload failed "; } } } echo " return} ?>

Another: Error message description
From Starting with PHP 4.2.0, PHP will return a corresponding error code along with the file information array. This code can be found in the error field in the file array generated when the file is uploaded, that is, $_FILES['userfile']['error'].
UPLOAD_ERR_OK
The value is 0, no error occurred, and the file was uploaded successfully.
UPLOAD_ERR_INI_SIZE
The value is 1, and the uploaded file exceeds the value limited by the upload_max_filesize option in php.ini.
UPLOAD_ERR_FORM_SIZE
With a value of 2, the size of the uploaded file exceeds the value specified by the MAX_FILE_SIZE option in the HTML form. UPLOAD_ERR_PARTIAL
The value is 3, the file is only partially uploaded.
UPLOAD_ERR_NO_FILE
The value is 4, no file was uploaded.
UPLOAD_ERR_NO_TMP_DIR
The value is 6 and the temporary folder cannot be found. Introduced in PHP 4.3.10 and PHP 5.0.3.
UPLOAD_ERR_CANT_WRITE
The value is 7, file writing failed. Introduced in PHP 5.1.0.
Note: The above values ​​became PHP constants after PHP 4.3.0.

http://www.bkjia.com/PHPjc/444605.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/444605.htmlTechArticleThere is not much difference between PHP file upload and multi-file upload. For multi-file upload, we just change the form name to an array. Form, and obtaining multiple files can be uploaded by using foreach traversal...