PHP very practical upload class, upload effect online demo

#*********************************************************

#文件名称:

inc_class.upload.php

#Copyright (c)

2007-2009 Youth once all rights reserved.

#最后更新: 2009-08-05

#版本: v 2.0.a

#注: Please keep this declaration information when forwarding, this statement will not affect your speed!

#如有修改请将修改后的文件以邮件形式发送给作者一份, thank you!

#

#*********************************************************

if (!defined (' In_phpadleyiu '))

{

Exit (' Access Denied ');

}

/*

Instructions for use:

Declaring an upload class

Include_once (adleyliu_root. ") /inc_class.upload.php ');

$_yl_upload

= Array ();

$yl _uploadfile = new

Yl_upload_class ();

$_yl_upload[' yl_filedata '] =

' UploadFile ';//Table Single-name

$_yl_upload[' Yl_directroy '] =

' Upload_files '/upload home directory

$_yl_upload[' File_urldirectroy '] = '/';

Program Path

$_yl_upload[' yl_settingsnew '] =

". Date (' ym ')." /'. Date (' d '). ' /'. substr (Time (), 0,

5). ';/ /Upload the Child home directory

$_yl_upload[' yl_maxsize '] = 1048576;

Here in bytes (1024*2) *1024=2097152 is 2M

$_yl_upload[' yl_sizeformat '] =

' K '; Show file size unit b bytes, K thousand, M trillion

$_yl_upload[' yl_arrext '] =

Array (' gif ', ' jpg ', ' jpeg ', ' PNG ', ' bmp ', ' rar ', ' txt ');//Allow file types to be uploaded

$_yl_upload[' yl_ext '] = 0; 0 Original file type upload, 1 unified for Save as JPG

$_yl_upload[' yl_prefix ' = '. $uid. $yl _uploadfile-> Yl_createrand (1,0). $cid. ';

In the filename prefix plus special characters//$UID Member ID $cid category ID

$_yl_upload[' yl_suffix '] = '; '. $yl _uploadfile-> Yl_createrand (3,0).

Add special characters to the filename suffix

$_yl_upload[' thumbwidth '] = 100;

Thumbnail width

$_yl_upload[' thumbheight '] = 100;

Thumbnail height

$_yl_upload[' maxthumbwidth '] = 500;

Big picture Height

$_yl_upload[' maxthumbheight '] = 500;

Large Image width

Upload

$yl _uploadfile-> yl_uploadfile ();

Get Value:

' Yl_filename ' => addslashes ($_yl_upload[' Yl_filename '), original filename

' Yl_attachment ' => $_yl_upload[' yl_attachment '], new filename and path

' Yl_filesize ' => $_yl_upload[' yl_filesize ', file size

' Yl_filetype ' => $_yl_upload[' yl_filetype '], file type

' Yl_isimage ' => $_yl_upload[' yl_isimage ', whether it is a picture

' Yl_isthumb ' => $_yl_upload[' yl_isthumb '], is there a small picture

*/

Class Yl_upload_class

{

function __get ($property _name)

{

if (Isset ($this-> $property _name))

{

return $this-> $property _name;

} else

{

Return

NULL;

}

}

function __set ($property _name,

$value) {

$this-> $property _name =

$value;

}

#*********************************************************

#生成缩略图

#*********************************************************

function Makethumb ($srcfile) {

Global $_yl_upload;

To determine whether a file exists

if (!file_exists ($srcfile))

{

Return ";

}

$dstfile =

$srcfile. ' Small.jpg ';

$bigfile =

$srcfile. ' Big.jpg ';

Thumbnail size

$tow =

Intval ($_yl_upload[' thumbwidth '));

$toh =

Intval ($_yl_upload[' thumbheight '));

if ($tow <) $tow =

60;

if ($toh <) $toh = 60;

$make _max = 0;

$maxtow =

Intval ($_yl_upload[' maxthumbwidth '));

$maxtoh =

Intval ($_yl_upload[' maxthumbheight '));

if ($maxtow >= 300

&& $maxtoh >= 300) {

$make _max =

1;

}

Get picture information

$im = ';

if ($data =

GetImageSize ($srcfile)) {

if ($data [2] = = 1)

{

$make _max =

0;//gif not handle

if (function_exists ("Imagecreatefromgif"))

{

$im =

Imagecreatefromgif ($srcfile);

}

}

ElseIf ($data [2] = = 2)

{

if (function_exists ("Imagecreatefromjpeg"))

{

$im =

Imagecreatefromjpeg ($srcfile);

}

}

ElseIf ($data [2] = = 3)

{

if (function_exists ("Imagecreatefrompng"))

{

$im =

Imagecreatefrompng ($srcfile);

}

}

}

if (! $im)

Return ";

$SRCW = Imagesx ($im);

$srch = Imagesy ($im);

$TOWH = $tow/$toh;

$SRCWH =

$SRCW/$srch;

if ($towh <= $srcwh) {

$ftow =

$tow;

$ftoh = $ftow * ($srch/$SRCW);

$fmaxtow = $maxtow;

$fmaxtoh =

$fmaxtow * ($srch/$SRCW);

} else {

$ftoh =

$toh;

$ftow = $ftoh * ($SRCW/$srch);

$fmaxtoh = $maxtoh;

$fmaxtow =

$fmaxtoh * ($SRCW/$srch);

}

if ($SRCW <= $maxtow

&& $srch <= $maxtoh) {

$make _max =

0;//not handle

}

if ($SRCW > $tow $srch > $toh)

{

if (function_exists ("Imagecreatetruecolor") &&

Function_exists ("imagecopyresampled") && @ $ni =

Imagecreatetruecolor ($ftow, $ftoh))

{

Imagecopyresampled ($ni, $im, 0, 0, 0, 0, $ftow,

$ftoh, $SRCW,

$srch);

Big picture

if ($make _max

&& @ $maxni = Imagecreatetruecolor ($fmaxtow, $fmaxtoh))

{

Imagecopyresampled ($maxni, $im, 0, 0, 0, 0,

$fmaxtow, $fmaxtoh, $SRCW, $srch);

}else if (@ $maxni

= Imagecreatetruecolor (Round ($SRCW/2),

Round ($srch/2))) {

Imagecopyresampled ($maxni,

$im, 0, 0, 0, 0, round ($SRCW/2), round ($srch/2), $SRCW,

$srch);

}

}

ElseIf (function_exists ("Imagecreate") &&

Function_exists ("imagecopyresized") && @ $ni = imagecreate ($ftow, $ftoh))

{

Imagecopyresized ($ni, $im, 0, 0, 0, 0, $ftow,

$ftoh, $SRCW,

$srch);

Big picture

if ($make _max

&& @ $maxni = imagecreate ($fmaxtow, $fmaxtoh))

{

Imagecopyresized ($maxni, $im, 0, 0, 0, 0,

$fmaxtow, $fmaxtoh, $SRCW, $srch);

}else if (@ $maxni

= Imagecreate (Round ($SRCW/2),

Round ($srch/2))) {

Imagecopyresized ($maxni, $im,

0, 0, 0, 0, round ($SRCW/2), round ($srch/2), $SRCW,

$srch);

}

} else

{

Return

'';

}

if (function_exists (' imagejpeg '))

{

Imagejpeg ($ni,

$dstfile);

Big picture

if ($make _max)

{

Imagejpeg ($maxni,

$bigfile);

}else{

Imagejpeg ($maxni,

$bigfile);

}

}

ElseIf (function_exists (' imagepng ')) {

Imagepng ($ni,

$dstfile);

Big picture

if ($make _max)

{

Imagepng ($maxni,

$bigfile);

}else{

Imagejpeg ($maxni,

$bigfile);

}

}

Imagedestroy ($ni);

if ($make _max)

{

}else{

Imagedestroy ($MAXNI);

}

}else{

if (function_exists ("Imagecreatetruecolor") &&

Function_exists ("imagecopyresampled") && @ $ni =

Imagecreatetruecolor ($SRCW, $srch))

{

Imagecopyresampled ($ni, $im, 0, 0, 0, 0, $SRCW,

$ftoh, $srch,

$srch);

Big picture

$maxni =

Imagecreatetruecolor ($srch, $srch);

Imagecopyresampled ($maxni, $im, 0, 0, 0, 0, $SRCW, $srch, $SRCW,

$srch);

} elseif (Function_exists ("Imagecreate")

&& function_exists ("imagecopyresized") && @ $ni =

Imagecreate ($ftow, $ftoh)) {

Imagecopyresized ($ni,

$im, 0, 0, 0, 0, $SRCW, $srch, $SRCW,

$srch);

Big picture

$maxni =

Imagecreate ($fmaxtow, $fmaxtoh);

Imagecopyresized ($maxni, $im, 0, 0, 0, 0, $SRCW, $srch, $SRCW,

$srch);

} else

{

Return

'';

}

Imagejpeg ($ni, $dstfile);

Imagejpeg ($maxni,

$bigfile);

}

Imagedestroy ($im);

if (!file_exists ($dstfile)) {

Return

'';

} else {

Return

$dstfile;

}

}

#*********************************************************

#获取随机数函数

#*********************************************************

function

Yl_createrand ($length, $numeric = 0) {

Php_version < ' 4.2.0 '

&& Mt_srand (Double) microtime () * 1000000);

if ($numeric)

{

$hash = sprintf ('%0 '. $length. ' d ', Mt_rand (0, pow (10,

$length)-1));

} else {

$hash =

'';

$chars =

' ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZ ';///0123456789

$max

= strlen ($chars)-1;

for ($i = 0; $i < $length; $i + +)

{

$hash. = $chars [Mt_rand (0,

$max)];

}

}

Return

$hash;

}

#***************

#*********************************************************

#创建目录函数

#*********************************************************

function

CreateFolder ($yl _path)

{

If

(!file_exists ($yl _path))

{

$this->

CreateFolder (dirname ($yl _path));

@mkdir ($yl _path,

0777);

}

return $this->

CreateFolder;

}

#*********************************************************

#获取文件

Name, size, type, temporary file name

#*********************************************************

function

Yl_getfilename ($yl _type)

{

Global

$_yl_upload;

Return

$_files[$_yl_upload[' Yl_filedata ']][$yl _type];

}

#*********************************************************

#获取文件大小

#*********************************************************

function

Yl_getfilesize ()

{

Global

$_yl_upload;

$yl _filesize = $this->

Yl_getfilename (' size ');

if ($yl _filesize = =

0) {

$this->

Alert ("Please select Upload file!");

Exit

}

if ($yl _filesize

> $_yl_upload[' yl_maxsize ']) {

Switch

(Strtolower ($_yl_upload[' Yl_sizeformat ')) {

Case

' B ':

$yl _maxsizek = $_yl_upload[' yl_maxsize '].

' B ';

Break

Case

' K ':

$yl _maxsizek =

$_yl_upload[' Yl_maxsize ']/1024. '

K ';

Break

Case

' m ':

$yl _maxsizek =

$_yl_upload[' Yl_maxsize ']/(1024*1024). '

M ';

}

$this->

Alert ("Upload file is out of bounds [". $yl _maxsizek. "]. K! ");

Exit

}

Return

$yl _filesize;

}

#*********************************************************

#获得文件扩展名

#*********************************************************

function

Yl_getfiletype ()

{

Global

$_yl_upload;

$pathinfo = PathInfo ($this-> yl_getfilename (' name '));

$yl _file_ext =

Strtolower ($pathinfo [' extension ']);

Check extension

if (!array_keys ($_yl_upload[' Yl_arrext '), $yl _file_ext))

{

$this->

Alert ("Upload file type is restricted!");

Exit

}

Return

$yl _file_ext;

}

#*********************************************************

#上传验证

#*********************************************************

function

Yl_upfile ($source, $target) {

//

If a function fails to upload, it can also be uploaded using other functions

if (function_exists (' Move_uploaded_file ')

&& @move_uploaded_file ($source, $target))

{

@chmod ($target, 0666);

Return

$target;

} elseif (@copy ($source, $target))

{

@chmod ($target, 0666);

Return

$target;

} elseif (@is_readable ($source))

{

if ($fp = @fopen ($source, ' RB '))

{

@flock ($FP, 2);

$filedata

=

@fread ($fp, @filesize ($source));

@fclose ($FP);

}

If

($fp = @fopen ($target, ' WB ') {

@flock ($FP,

2);

@fwrite ($FP,

$filedata);

@fclose ($FP);

@chmod

($target, 0666);

Return

$target;

} else {

Return

False

}

}

}

#*********************************************************

#上传

#*********************************************************

function

Yl_uploadfile ()

{

Global $_yl_upload;

$yl _file_path = $_yl_upload[' Yl_directroy ']. ' /'. $_yl_upload[' yl_settingsnew '];//Create a directory

$yl _filename = $this-> yl_getfilename (' name ');//original filename

$yl _filenamenews = $_yl_upload[' Yl_prefix '. SUBSTR (Time (), 5, 9). $_yl_upload[' Yl_suffix ']. /rename

$yl _file_size = $this-> yl_getfilesize ()//Get file size

$yl _file_type = $this-> yl_getfiletype ()//Get file type

if ($_yl_upload[' yl_ext ') = =

0) {

$yl _filenamenewsext = $yl _filenamenews. $yl _file_type;//renamed

}elseif ($_yl_upload[' yl_ext '] = = 1) {

$yl _filenamenewsext = $yl _filenamenews. JPG ';//unified renamed to JPG

}

$yl _tmp_name = Str_replace (",", $this->

Yl_getfilename (' tmp_name '))//temporary file name on the server

$yl _tmp_name = $this-> yl_getfilename (' tmp_name ');//temporary file name on server

Check if it has been uploaded

If<>< p=""> <>

Href= "! @is_uploaded_file ($yl _tmp_name" _cke_saved_href= "[email=! @is_uploaded_file ($yl _tmp_name]! @is_uploaded_ File ($yl _tmp_name ">mailto:! @is_uploaded_file ($yl _tmp_name" >! @is_uploaded_file ($yl _tmp_name))

{

$this->

Alert ("File uploaded!");

Exit

}

Check whether the directory exists or not, create

If<>< p=""> <>

Href= "! @is_dir (' $_yl_upload[' File_urldirectroy '). $yl _file_path. "_cke_saved_href=" [email=! @is_dir (]! @is_dir ('. $_yl_upload[' File_urldirectroy ']. $yl _file_path. ' " >mailto:! @is_dir ('. $_yl_upload[' File_urldirectroy '). $yl _file_path. ' " >! @is_dir ('. $_yl_upload[' File_urldirectroy '). $yl _file_path. ")

{

$this->

CreateFolder ('. $_yl_upload[' File_urldirectroy '). $yl _file_path. "); /create a table of contents

}

Check Directory Write permissions

If

(<>< p=""> <>

Href= "! @is_writable (' $_yl_upload[' File_urldirectroy '). $yl _file_path. "_cke_saved_href=" [email=! @is_writable (]! @is_writable ('. $_yl_upload[' File_urldirectroy ']. $yl _file_path. ' " >mailto:! @is_writable ('. $_yl_upload[' File_urldirectroy '). $yl _file_path. ' " >! @is_writable ('. $_yl_upload[' File_urldirectroy '). $yl _file_path. ")

{

$this->

Alert ("Upload directory does not write permission!");

Exit

}

$yl _path_name

=

'. $_yl_upload[' File_urldirectroy '. $yl _file_path. ' /'. $yl _filenamenewsext. ';

$yl _doupload = $this-> yl_upfile ($yl _tmp_name, $yl _path_name);

if ($yl _doupload = = False) {

$this-> alert ("Upload failed!");

Exit

}else{

Echo

' Upload success ';

Echo

'
';

/*

Echo

' Original filename: '. $yl _filename. ';

Echo

'
';

Echo

' New filename and directory: '. $yl _file_path. ' /'. $yl _filenamenewsext;

Echo

'
';

Echo

' File size: '. $yl _file_size. ';

Echo '
';

echo ' File type: '. $yl _file_type. ';

*/

$_yl_upload[' yl_filename ' = $yl _filename;

$_yl_upload[' yl_attachment ' = '. $yl _file_path. ' /'. $yl _filenamenewsext. ';

$_yl_upload[' yl_filesize ' = $yl _file_size;

$_yl_upload[' yl_filetype ' = $yl _file_type;

Check if picture

if (@getimagesize ($yl _path_name))

{

$_yl_upload[' yl_isimage '] =

1;

Generate thumbnails

if ($this-> makethumb ($yl _path_name)) {

$_yl_upload[' yl_isthumb '] = 1;

}else{

$_yl_upload[' yl_isthumb '] = 0;

}

}else{

$_yl_upload[' yl_isimage '] = 0;

}

}

Return

True

}

#*********************************************************

#提示

#*********************************************************

function

Alert ($yl _msg)

{

Echo ';

Echo ';

Echo ';

Echo ';

Echo ';

Echo ';

Echo ' <script></script> ';

Echo ';

Echo ';

Exit

}

}