Based on jquery Ajax php file upload program code

Last Update:2017-01-13 Source: Internet

Author: User

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<!doctype HTML Public "-//W3C//DTD XHTML 1.0 transitional//en"
        Http://www.w3.org/tr/xhtml1/dtd/xhtml1-transitional.dtd ""
    <meta http-equiv= "Content-type" content= "text/html; CHARSET=GBK"/
    <title>ajax File upload download by http://www.111cn.net</title>

<link href= "Css/style.css" rel= "stylesheet" type= "Text/css"/>
<script type= "text/web Effects" src= "Js/jquery-1.2.6.min.js" ></script>
<script type= "Text/javascript" src= "Js/jquery.livequery.min.js" ></script>
<script type= "Text/javascript" src= "Js/jquery.ajaxmultifileupload.js" ></script>
<script type= "Text/javascript" >
$ (document). Ready (function () {
$ ("#maincol"). Ajaxmultifileupload ();
});
</script>

<body>
<div id= "Maincol" ></div>
</body>

PHP code

<?php

function _resize ($_w, $max _w, $_h, $max _h) {
Global $new _w, $new _h;

if ($_w> $max _w | | $_h> $max _h) {
$x _ratio = $max _w/$_w;
$y _ratio = $max _h/$_h;
if (($x _ratio * $_h) < $max _h) {
$new _h = ceil ($x _ratio * $_h);
$new _w = $max _w;
}
else {
$new _w = ceil ($y _ratio * $_w);
$new _h= $max _h;
}
}
else {
$new _w = $_w;
$new _h=$_h;
}
}

if ($_files) {
foreach ($_files as $f) {
Get actual image Type
$ext = Strtolower (Str_replace ("image/", "", Image_type_to_mime_type (Exif_imagetype ($f [' tmp_name '])));
Get image type from file extension
$ext _file = Strtolower (Str_replace ("image/", "", $f [' type ']));
Adjustment for IE MIME types
$ext _adjust = Array ("Pjpeg" => "JPEG", "x-png" => "png");
$ext _file = (array_key_exists ($ext _file, $ext _adjust))? $ext _adjust[$ext _file]: $ext _file;

Check if file actual and Ext file types match
if (($ext _file!= $ext)) {
$ps Tutorial T = Array ("Problem" => Array ("name" => $f [' name '], "ext" => $ext, "ext_actual" => $ext _file));
}
else {

$stat = stat ($f [' tmp_name ']);
$renamed = ($_post[' mode ']== ' demo ')? $stat [9]. substr (STRRCHR ($f [' name '], "."), 1): $f [' name '];

Set path for upload directory
$f [' _upload '] = $_server[' Document_root ']. $_post[' upload ']. $renamed;
Set path for image thumbnail directory
$f [' _thumb '] = $_server[' Document_root ']. $_post[' thumb ']. $renamed;
$f [' src '] = "thumb/". $renamed;

chmod ($f [' Tmp_name '], 0755);

Get Image Size-requires GD Library
List ($width, $height) = getimagesize ($f [' tmp_name ']);

$max _width = 120;
$max _height = 60;
_resize ($width, $max _width, $height, $max _height);

Create thumbnail with image_class (files included in download)
Include_once (' Imageclass/image_class.inc ');
Set_time_limit (140);
try{
Create new image from posted $_files
$image =& New Image ($f [' tmp_name ']);
$image->resize (Round ($new _w), round ($new _h));
Save image to thumbnail directory
$image->saveimage ($f [' _thumb '], $image->getimagedata ());
$image->clean ();
Move actual posted $_files to upload directory
$moved = Move_uploaded_file ($f [' Tmp_name '], $f [' _upload ']);
if ($moved) $pst = Array ("img" => Array ("alt" => $f [' _thumb '], "src" => $f [' src '], "name" => $f [' name '], "re Name "=> $renamed," width "=> $new _w," height "=> $new _h));
}
catch (Exception $e) {
$pst = Array ("Problem" => Array ("name" => $f [' name '], ' error ' => $e->__tostring ()));
}
}
echo "var pst =". Json_encode ($PST);
}
}
else if ($_post[' DeleteFile ']) {
$_file = ($_post[' mode ']== ' demo ')? UrlDecode ($_post[' DeleteFile ']): UrlDecode ($_post[' origname ']);
Delete tmp file
$_unlink_upload = unlink ($_server[' Document_root '). $_post[' upload ']. $_file);
Delete thumb file
$_unlink_thumb = unlink ($_server[' Document_root '). $_post[' thumb ']. $_file);

if ($_unlink_thumb && $_unlink_upload) echo "File <span>". $_post[' OrigName ']. "</span> deleted.";
else echo "problem deleting file". $_file. ".";
}

/*
File Download Address

Http://down.111cn.net/php/2010/0901/20569.html
*/

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