Upload program code based on jQuery Ajax PHP File

Source: Internet
Author: User
Tags tmp file

Upload program code based on jQuery Ajax PHP file this is a jQuery-based PHP multi-File Upload program instance. It uses the ajaxmultifileupoad plug-in to upload instance files with upload progress bars.

File Upload program code based on jquery ajax php tutorial
This is a jquery-based php multi-File Upload program instance. It uses the ajaxmultifileupoad plug-in to upload files to the instance, with an upload progress bar.

<! Doctype html public "-// w3c // dtd xhtml 1.0 transitional // en"
Http://www.w3.org/tr/xhtml1/dtd/xhtml1-transitional.dtd>
<Html xmlns = "http://www.w3.org/1999/xhtml">
<Head>
<Meta http-equiv = "content-type" content = "text/html; charset = gbk"/>
<Title> ajax file upload download by http://www.bKjia. c0m </title>

<Link href = "css tutorial/style.css" rel = "stylesheet" type = "text/css"/>
<Script type = "text/Webpage 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>
</Head>

<Body>
<Div id = "maincol"> </div>
</Body>
</Html>

// 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 )){
$ Pstutorial 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 encoded 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'], "rename" => $ 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 ['original']);
// 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 ['name name']. "</span> deleted .";
Else echo "problem deleting file". $ _ file .".";
}



/*
File

Http://down.bKjia. c0m/php/2010/0901/20569.html
*/

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