PHP processing single file, multiple file upload code sharing _php Skills

PHP processing single file, multiple file upload instance code, for your reference, the specific content as follows

Background processing file submit_form_process.php

<?php/****************************************************************************** parameter Description: $max _file_size: Upload text 
 
Size limit, unit byte $destination _folder: Upload file path $watermark: Whether to add watermark (1 for Watermark, other for no watermark); 
Instructions for use: 1. Remove the "Extension=php_gd2.dll" line in front of the php.ini file, because we need to use the GD library; 
2. Change Extension_dir = to the directory where your Php_gd2.dll is located; ////Upload file type list $uptypes =array (' image
 
/jpg ', ' image/jpeg ', ' image/png ', ' image/pjpeg ', ' image/gif ', ' image/bmp ', ' image/x-png ';   $max _file_size=2*1024*1024; Upload file size limit, unit byte $destination _folder=get_stylesheet_directory (). ' /mytest/';   Upload file path $watermark = 1; 
Whether to add watermark (1 for Watermark, other for no watermark);   $watertype = 1;   Watermark Type (1 for text, 2 for picture) $waterposition = 1; 
Watermark position (1 is lower left corner, 2 is lower right corner, 3 is upper left corner, 4 is upper right corner, 5 is centered); $waterstring = "Test";  Watermark string $waterimg = "Xplore.gif";   Watermark Picture $imgpreview = 1; 
Whether to generate a preview diagram (1 is a build, others are not generated);  $imgpreviewsize =1/2; Thumbnail scale if ($_server[' request_method '] = = ' POST ') {$fileARray = $_files[' upfile '];//get information about multiple files, note: The key name here does not contain [] print_r ($fileArray);
  echo "<br/>"; 
     if (!is_uploaded_file ($_files["upfile"] [' tmp_name '])/whether there is a file {echo "picture does not exist!"; 
  Exit 
  } $file = $_files["Upfile"]; 
    if ($max _file_size < $file ["size"])//Check file size {echo "file is too large!"; 
  Exit } if (!in_array ($file [type], $uptypes))//Check file type {echo "file type does not match!". 
    $file [' type ']; 
  Exit 
  } if (!file_exists ($destination _folder)) {mkdir ($destination _folder); 
  } $filename = $file ["Tmp_name"]; 
  $image _size = getimagesize ($filename); 
  $pinfo =pathinfo ($file ["name"]); 
  $ftype = $pinfo [' extension ']; $destination = $destination _folder.time (). "." 
  $ftype; 
  $destination = $destination _folder. $file ["name"]; 
    if (file_exists ($destination) && $overwrite!= true) {echo "has a file with the same name already exists"; 
  Exit 
    } if (!move_uploaded_file ($filename, $destination)) {echo "Error moving File"; 
  Exit } $pinfo =patHinfo ($destination); 
  $fname = $pinfo [basename]; echo "<font color=red> has been successfully uploaded </font><br> FileName: <font color=blue>". $destination _folder. $fname. " 
  </font><br> "; 
  echo "width:". $image _size[0]; 
  echo "Length:". $image _size[1]; 
 
  
  echo "<br> size:". $file ["Size"]. "bytes"; 
    if ($watermark ==1) {$iinfo =getimagesize ($destination, $iinfo); 
    $nimage =imagecreatetruecolor ($image _size[0], $image _size[1]); 
    $white =imagecolorallocate ($nimage, 255,255,255); 
    $black =imagecolorallocate ($nimage, 0,0,0); 
    $red =imagecolorallocate ($nimage, 255,0,0); 
    Imagefill ($nimage, 0,0, $white); 
      Switch ($iinfo [2]) {Case 1: $simage =imagecreatefromgif ($destination); 
      Break 
      Case 2: $simage =imagecreatefromjpeg ($destination); 
      Break 
      Case 3: $simage =imagecreatefrompng ($destination); 
      Break 
      Case 6: $simage =imagecreatefromwbmp ($destination); 
      Break 
  Default    Die ("Unsupported file type"); 
    Exit 
    Imagecopy ($nimage, $simage, 0,0,0,0, $image _size[0], $image _size[1]); 
 
    Imagefilledrectangle ($nimage, 1, $image _size[1]-15,80, $image _size[1], $white); 
      Switch ($watertype) {Case 1://Add watermark String imagestring ($nimage, 2,3, $image _size[1]-15, $waterstring, $black); 
      Break 
      Case 2://Add watermark Picture $simage 1 =imagecreatefromgif ("Xplore.gif"); 
      Imagecopy ($nimage, $simage 1,0,0,0,0,85,15); 
      Imagedestroy ($simage 1); 
    Break 
      Switch ($iinfo [2]) {Case 1://imagegif ($nimage, $destination); 
      Imagejpeg ($nimage, $destination); 
      Break 
      Case 2:imagejpeg ($nimage, $destination); 
      Break 
      Case 3:imagepng ($nimage, $destination); 
      Break 
      Case 6:imagewbmp ($nimage, $destination); 
      Imagejpeg ($nimage, $destination); 
    Break 
    //Overwrite original upload file Imagedestroy ($nimage); 
  Imagedestroy ($simage); 
 
}  if ($imgpreview ==1) {echo <br> picture preview:<br>; echo "

Front Page

   <form enctype= "Multipart/form-data" method= "post" name= "Upform" action= "submit_form_process.php"
    > 
    <input name= "Testparas" value= "test" type= "text" >
     <input name= "upfile" type= "file" > 
     <input Type= "Submit" value= "upload" ><br> 
     allow file types to be uploaded: <?=implode (', ', $uptypes)?> 
    </form>  

Note 1: The most important difference between uploading and uploading a single picture is the name attribute in input, at first my name is equal to Upfile and only the last file can be read on the server side when reading F Iles, because on the server side Files can only read the last file, because in the server side of the _files["file" is the file we uploaded, when uploading multiple files, the following value will overwrite the previous value, so can only read the last file. Now we're going to rename it upfile[], and when the server reads $_files["file", it gets an array, so I can get the information on the uploaded file by using the array method that's traversed above.
<input type= "file" multiple= "multiple" id= "file" Name= "upfile[]" >

NOTE 2: You can also add an iframe to the foreground page so that form is submitted to this IFRAME, and the backend service return content is displayed here

  <form enctype= "Multipart/form-data" method= "post" name= "Upform" tatget= "Iframefile" action= "Submit_form_"
    process.php "> 
    <input name=" Testparas "value=" test "type=" text ">
     <input name=" upfile "type=" file "> 
     <input type=" Submit "value=" upload "><br> 
     allow file types to be uploaded: <?=implode (', ', $uptypes)?> 
    </form>

<iframe name= "Iframefile" > 

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