php多文件上传的三种方法，供大家学习参考。
<?php
这里介绍三种多文件上传的方法，前两种都是直接遍历
三维超全局数组$_FILES，最后一种是先定义一个单文件
上传函数，再循环调用该函数，完成多文件的上传。
1.当多文件上传表单中多个上传文件的name属性为“pic[]”形式时,
也即表单为这种形式：
<input type="hidden" name="MAX_FILE_SIZE" value="">
<input type="file" name="pic[]" />
<input type="file" name="pic[]" />
<input type="file" name="pic[]" />
<input type="file" name="pic[]" />
<input type="submit" value="upload"/>
</form>
可用foreach 循环 上传多个文件：
//1.获取要上传文件的信息
$up_info=$_FILES['pic'];
$ob_path="../system";
$typelist=array("image/gif","image/jpeg","image/pjpeg","image/png"); //定义运行的上传文件类型
for($i=0;$i<count($up_info['name']);$i++){ //foreach 循环处理多个文件上传
//2.判断文件是否上传错误
if($up_info['error'][$i]>0){
switch($up_info['error'][$i]){
case 1:
$err_info="上传的文件超过了 php.ini 中 upload_max_filesize 选项限制的值";
break;
case 2:
$err_info="上传文件的大小超过了 HTML 表单中 MAX_FILE_SIZE 选项指定的值";
break;
case 3:
$err_info="文件只有部分被上传";
break;
case 4:
$err_info="没有文件被上传";
break;
case 6:
$err_info="找不到临时文件夹";
break;
case 7:
$err_info="文件写入失败";
break;
default:
$err_info="未知的上传错误";
break;
}
continue($err_info);
}
//3.判断文件上传的类型是否合法
if(!in_array($up_info['type'][$i],$typelist)){
continue('文件类型错误！'.$up_info['type'][$i]);
}
//4.上传文件的大小过滤
if($up_info['size'][$i]>1000000){
continue('文件大小超过1000000');
}
//5.上传文件名处理
$exten_name=pathinfo($up_info['name'][$i],PATHINFO_EXTENSION);
do{
$main_name=date('YmHis'.'--'.rand(100,999));
$new_name=$main_name.'.'.$exten_name;
}while(file_exists($to_path.'/'.$new_name));
//6.判断是否是上传的文件，并执行上传
if(is_uploaded_file($up_info['tmp_name'][$i])){
if(move_uploaded_file($up_info['tmp_name'][$i],$ob_path.'/'.$new_name)){
echo '文件上传成功！';
}else{
echo '上传文件移动失败!';
}
}else{
echo '文件不是上传的文件';
}
} //for循环的括号
2.当多文件上传表单中多个上传文件的name属性为“pic，text，doc，pdf”形式时,
也即表单为这种形式：
<input type="hidden" name="MAX_FILE_SIZE" value="">
<input type="file" name="pic" />
<input type="file" name="text" />
<input type="file" name="doc" />
<input type="file" name="pdf" />
<input type="submit" value="upload"/>
</form>
也可用foreach 循环 上传多个文件：
//1.获取要上传文件的信息
$up_info=$_FILES;
$ob_path="..\system";
$typelist=array("image/gif","image/jpeg","image/pjpeg","image/png"); //定义运行的上传文件类型
foreach($up_info as $k_name=>$value){ //用foreach循环 处理多个文件的上传
//2.判断文件是否上传错误
if($up_info[$k_name]['error']>0){
switch($up_info['error'][$i]){
case 1:
$err_info="上传的文件超过了 php.ini 中 upload_max_filesize 选项限制的值";
break;
case 2:
$err_info="上传文件的大小超过了 HTML 表单中 MAX_FILE_SIZE 选项指定的值";
break;
case 3:
$err_info="文件只有部分被上传";
break;
case 4:
$err_info="没有文件被上传";
break;
case 6:
$err_info="找不到临时文件夹";
break;
case 7:
$err_info="文件写入失败";
break;
default:
$err_info="未知的上传错误";
break;
}
continue($err_info);
}
//3.判断文件上传的类型是否合法
if(!in_array($up_info[$k_name]['type'],$typelist)){
continue('文件类型错误！'.$up_info[$k_name]['type']);
}
//4.上传文件的大小过滤
if($up_info[$k_name]['size']>100000){
echo '文件大小超过**';
continue;
}
//5.上传文件名处理
$exten_name=pathinfo($up_info[$k_name]['name'],PATHINFO_EXTENSION);
do{
$main_name=date('YmHis'.'--'.rand(100,999));
$new_name=$main_name.'.'.$exten_name;
}while(file_exists($to_path.'/'.$new_name));
//6.判断是否是上传的文件，并执行上传
if(is_uploaded_file($up_info[$k_name]['tmp_name'])){
if(move_uploaded_file($up_info[$k_name]['tmp_name'],$ob_path.'/'.$new_name)){
echo '文件上传成功！';
}else{
echo '上传文件移动失败!';
}
}else{
echo '文件不是上传的文件';
}
} //for循环的括号
//3.上面的循环是嵌入到文件上传的代码中的，可能有点不好理解，这儿提供第三种法，
//先定义单个文件上传的函数，再循环调用这个函数，每次传入一个文件的上传信息，
//也可以到达多文件上传的目的，而且这种方式，更容易理解。
//上传的表单的形式和第二种方法中的相同，即：
<input type="hidden" name="MAX_FILE_SIZE" value="">
<input type="file" name="pic1" >
<input type="file" name="pic2">
<input type="file" name="pic3">
<input type="submit" value="upload">
</form>
//定义函数如下：
/*
*单文件上传函数
*@param array $up_info 记录上传文件信息的超全局数组
*@param string $to_path 上传文件的目标路径
*@param array $typlist 允许的文件类型
*@param int $file_size允许的文件大小
*@return string 上传失败，返回失败的原因，
*
* 成功返回包括文件名的路径。
*/
function upload_fun($up_info,$to_path,$typelist=array(),$file_size=2000000){
//1.判断文件上传是否错误
if($up_file['error']>0){
switch($up_info['error']){
case 1:
$err_info="上传的文件超过了 php.ini 中 upload_max_filesize 选项限制的值";
break;
case 2:
$err_info="上传文件的大小超过了 HTML 表单中 MAX_FILE_SIZE 选项指定的值";
break;
case 3:
$err_info="文件只有部分被上传";
break;
case 4:
$err_info="没有文件被上传";
break;
case 6:
$err_info="找不到临时文件夹";
break;
case 7:
$err_info="文件写入失败";
break;
default:
$err_info="未知的上传错误";
break;
}
return $err_info;
die();
}
//2.判断上传文件类型是否合法
if(count($typelist)>0){
if(!in_array($up_info['type'],$typelist)){
$err_info='文件类型不合法！'.$up_info['type'];
return $err_info;
die();
}
}
//4.判断上传文件大小是否超出允许值
if($up_info['size']>$file_size){
return $err_info='文件大小超过'.$file_size;
die();
}
//5.上传文件重命名
$exten_name=pathinfo($up_info['name'],PATHINFO_EXTENSION);
do{
$main_name=date('YmHis'.'--'.rand(100,999));
$new_name=$main_name.'.'.$exten_name;
}while(file_exists($to_path.'/'.$new_name));
//6.判断是否是上传的文件，并移动文件
if(is_uploaded_file($up_info['tmp_name'])){
if(move_uploaded_file($up_info['tmp_name'],$to_path.'/'.$new_name)){
$err_info=$to_path.'/'.$new_name;
return $err_info;
die();
}else{
return $err_info='上传文件移动失败！';
die();
}
}else{
return $err_info='这个文件不是上传文件！';
die();
}
}
//函数使用方法如下
$multi_info=$_FILES; //接收$_FILES的全部上传信息
$to_path='system'; //上传文件的目标路径
foreach($multi_info as $name=>$up_info){ //foreach 遍历$multi_info
$err_info=upload_fun($up_info,$to_path); //调用单文件上传函数
p($err_info); //输出返回信息；
}
?>
一、建静态页面,要实现上传功能,其实模板很简单,upload.html代码如下:
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gbk" />
<title>图片上传</title>
</head>
<body>
<form action="/blog_article/upload/act/upload.html" method="post" enctype="multipart/form-data" >
请选择您要上传的图片:<input name="pic" type="file" id="pic" />
<br /><br />
图片介绍:<input name="img_js" type="text" id="img_js" /><br /><br />
<input name="上传" type="submit" id="上传" value="上传" />
</form>
</body>
</html>
二、PHP代码
<?php
/*
* Author : 甘宇
* Email : ganyu_0808@163.com
* action : 图片上传
* Date : 2009-12-3
*/
require_once '../xmphp/init.php'; //全站配置文件
require_once XMPHP_COMMON.'/smarty.php';//smarty功能
require_once XMPHP_COMMON.'/mysql.php'; //mysql功能
require_once XMPHP_COMMON.'/func.php';//站内函数
header('Cache-control:Private');//提交前保留所写内容
if (isset()($_GET['act']) && $_GET['act'] == 'upload') {
$pic = isset($_FILES['pic']) ? $_FILES['pic'] : '';
$img_js = isset($_POST['img_js']) ? $_POST['img_js'] :'';
$upload_time = time();
//var_dump($pic);
//结果:array(5) { ["name"]=> string(7) "hot.jpg" ["type"]=> string(11) "image/pjpeg" ["tmp_name"]=> string(26) //"C:\WINDOWS\Temp\php145.tmp" ["error"]=> int(0) ["size"]=> int(16405) }
if ($pic['name'] == '') {
alert ('请选择图片');
exit;
}
if ($pic['error'] != 0) {
alert ('上传错误,请返回重试');
exit;
}
if ($img_js == '') {
alert('请填写图片介绍');
exit;
}
$houzhui = pathinfo($pic['name']);
//var_dump($houzhui);
//结果:array(4) { ["dirname"]=> string(1) "." ["basename"]=> string(7) "hot.jpg" ["extension"]=> string(3) "jpg" ["filename"]=> //string(3) "hot" }
if ( !in_array($houzhui['extension'],array('jpg','gif','png','JPG','GIF','PNG')) ) {
alert ('上传格式不对,请返回重试');
exit;
}
// if ($pic['size'] > 2*1024*1024) {
// alert ('所选图片大于2M,请重新选择');
// exit;
// }
if ($pic['size'] >200*1024) {
alert ('所选图片大于200K,请重新选择');
exit;
}
$dir_name = date('Ymd');
$dir = 'upload/'.$dir_name;
if (!file_exists($dir)) {
@mkdir($dir);
}
$image_name = $dir_name.rand(0,1000).'.'.$houzhui['extension'];
if (move_uploaded_file($pic['tmp_name'],$dir.'/'.$image_name)) { //move_uploaded_file(old,new) -- 将上传的文件移动到新位置
$sql = "INSERT INTO `upload` (`img_js`,`img_name`,`upload_time`) VALUES ('{$img_js}','{$image_name}','{$upload_time}')";
$res = mysql_query()($sql);
if ($res) {
alert ('上传成功');
exit;
}
else {
alert ('上传失败');
exit;
}
}else {
alert('文件移动出错');
exit;
}
}
$tpl->display ('admin/tpl/upload.html');
?>
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先来看一个函数
<?php
function upload_file($fname,$ftype,$fsize,$ferror,$ftmp_name,$fpath){
date_default_timezone_set('PRC');
$store_nm = date("YmdHis") . "-" . rand(10000,99999) . "-". strlen($fname)."-$fname";
if($fname){
if ( ( ($ftype == "image/gif") || ($ftype == "image/jpeg")|| ($ftype == "image/pjpeg"))
&& ($fsize < 20000000) ){
if ($ferror > 0){
//echo "Error: " . $ferror . "<br />";
return 1;
}else{
/*
echo "Upload: " . $fname . "<br />";
echo "Type: " . $ftype . "<br />";
echo "Size: " . ($fsize / 1024) . " Kb<br />";
echo "Stored in: $fpath/$store_nm-$fname";
*/
move_uploaded_file($ftmp_name,"$fpath/$store_nm");
return $store_nm;
}
}else{
//echo "Invalid file";
return 2;
}
}else {
//echo "no file";
return 3;
}
}
?>
其中对文件类型及其值，列表如下
文件后缀名 文件类型
3gp video/3gpp
aab application/x-authoware-bin
aam application/x-authoware-map
aas application/x-authoware-seg
ai application/postscript
aif audio/x-aiff
aifc audio/x-aiff
aiff audio/x-aiff
als audio/X-Alpha5
amc application/x-mpeg
ani application/octet-stream
asc text/plain
asd application/astound
asf video/x-ms-asf
asn application/astound
asp application/x-asap
asx video/x-ms-asf
au audio/basic
avb application/octet-stream
avi video/x-msvideo
awb audio/amr-wb
bcpio application/x-bcpio
bin application/octet-stream
bld application/bld
bld2 application/bld2
bmp application/x-MS-bmp
bpk application/octet-stream
bz2 application/x-bzip2
cal image/x-cals
ccn application/x-cnc
cco application/x-cocoa
cdf application/x-netcdf
cgi magnus-internal/cgi
chat application/x-chat
class application/octet-stream
clp application/x-msclip
cmx application/x-cmx
co application/x-cult3d-object
cod image/cis-cod
cpio application/x-cpio
cpt application/mac-compactpro
crd application/x-mscardfile
csh application/x-csh
csm chemical/x-csml
csml chemical/x-csml
css text/css
cur application/octet-stream
dcm x-lml/x-evm
dcr application/x-director
dcx image/x-dcx
dhtml text/html
dir application/x-director
dll application/octet-stream
dmg application/octet-stream
dms application/octet-stream
doc application/msword
dot application/x-dot
dvi application/x-dvi
dwf drawing/x-dwf
dwg application/x-autocad
dxf application/x-autocad
dxr application/x-director
ebk application/x-expandedbook
emb chemical/x-embl-dl-nucleotide
embl chemical/x-embl-dl-nucleotide
eps application/postscript
eri image/x-eri
es audio/echospeech
esl audio/echospeech
etc application/x-earthtime
etx text/x-setext
evm x-lml/x-evm
evy application/x-envoy
exe application/octet-stream
fh4 image/x-freehand
fh5 image/x-freehand
fhc image/x-freehand
fif image/fif
fm application/x-maker
fpx image/x-fpx
fvi video/isivideo
gau chemical/x-gaussian-input
gca application/x-gca-compressed
gdb x-lml/x-gdb
gif image/gif
gps application/x-gps
gtar application/x-gtar
gz application/x-gzip
hdf application/x-hdf
hdm text/x-hdml
hdml text/x-hdml
hlp application/winhlp
hqx application/mac-binhex40
htm text/html
html text/html
hts text/html
ice x-conference/x-cooltalk
ico application/octet-stream
ief image/ief
ifm image/gif
ifs image/ifs
imy audio/melody
ins application/x-NET-Install
ips application/x-ipscript
ipx application/x-ipix
it audio/x-mod
itz audio/x-mod
ivr i-world/i-vrml
j2k image/j2k
jad text/vnd.sun.j2me.app-descriptor
jam application/x-jam
jar application/java-archive
jnlp application/x-java-jnlp-file
jpe image/jpeg
jpeg image/jpeg
jpg image/jpeg
jpz image/jpeg
js application/x-javascript
jwc application/jwc
kjx application/x-kjx
lak x-lml/x-lak
latex application/x-latex
lcc application/fastman
lcl application/x-digitalloca
lcr application/x-digitalloca
lgh application/lgh
lha application/octet-stream
lml x-lml/x-lml
lmlpack x-lml/x-lmlpack
lsf video/x-ms-asf
lsx video/x-ms-asf
lzh application/x-lzh
m13 application/x-msmediaview
m14 application/x-msmediaview
m15 audio/x-mod
m3u audio/x-mpegurl
m3url audio/x-mpegurl
ma1 audio/ma1
ma2 audio/ma2
ma3 audio/ma3
ma5 audio/ma5
man application/x-troff-man
map magnus-internal/imagemap
mbd application/mbedlet
mct application/x-mascot
mdb application/x-msaccess
mdz audio/x-mod
me application/x-troff-me
mel text/x-vmel
mi application/x-mif
mid audio/midi
midi audio/midi
mif application/x-mif
mil image/x-cals
mio audio/x-mio
mmf application/x-skt-lbs
mng video/x-mng
mny application/x-msmoney
moc application/x-mocha
mocha application/x-mocha
mod audio/x-mod
mof application/x-yumekara
mol chemical/x-mdl-molfile
mop chemical/x-mopac-input
mov video/quicktime
movie video/x-sgi-movie
mp2 audio/x-mpeg
mp3 audio/x-mpeg
mp4 video/mp4
mpc application/vnd.mpohun.certificate
mpe video/mpeg
mpeg video/mpeg
mpg video/mpeg
mpg4 video/mp4
mpga audio/mpeg
mpn application/vnd.mophun.application
mpp application/vnd.ms-project
mps application/x-mapserver
mrl text/x-mrml
mrm application/x-mrm
ms application/x-troff-ms
mts application/metastream
mtx application/metastream
mtz application/metastream
mzv application/metastream
nar application/zip
nbmp image/nbmp
nc application/x-netcdf
ndb x-lml/x-ndb
ndwn application/ndwn
nif application/x-nif
nmz application/x-scream
nokia-op-logo image/vnd.nok-oplogo-color
npx application/x-netfpx
nsnd audio/nsnd
nva application/x-neva1
oda application/oda
oom application/x-AtlasMate-Plugin
pac audio/x-pac
pae audio/x-epac
pan application/x-pan
pbm image/x-portable-bitmap
pcx image/x-pcx
pda image/x-pda
pdb chemical/x-pdb
pdf application/pdf
pfr application/font-tdpfr
pgm image/x-portable-graymap
pict image/x-pict
pm application/x-perl
pmd application/x-pmd
png image/png
pnm image/x-portable-anymap
pnz image/png
pot application/vnd.ms-powerpoint
ppm image/x-portable-pixmap
pps application/vnd.ms-powerpoint
ppt application/vnd.ms-powerpoint
pqf application/x-cprplayer
pqi application/cprplayer
prc application/x-prc
proxy application/x-ns-proxy-autoconfig
ps application/postscript
ptlk application/listenup
pub application/x-mspublisher
pvx video/x-pv-pvx
qcp audio/vnd.qcelp
qt video/quicktime
qti image/x-quicktime
qtif image/x-quicktime
r3t text/vnd.rn-realtext3d
ra audio/x-pn-realaudio
ram audio/x-pn-realaudio
rar application/x-rar-compressed
ras image/x-cmu-raster
rdf application/rdf+xml
rf image/vnd.rn-realflash
rgb image/x-rgb
rlf application/x-richlink
rm audio/x-pn-realaudio
rmf audio/x-rmf
rmm audio/x-pn-realaudio
rmvb audio/x-pn-realaudio
rnx application/vnd.rn-realplayer
roff application/x-troff
rp image/vnd.rn-realpix
rpm audio/x-pn-realaudio-plugin
rt text/vnd.rn-realtext
rte x-lml/x-gps
rtf application/rtf
rtg application/metastream
rtx text/richtext
rv video/vnd.rn-realvideo
rwc application/x-rogerwilco
s3m audio/x-mod
s3z audio/x-mod
sca application/x-supercard
scd application/x-msschedule
sdf application/e-score
sea application/x-stuffit
sgm text/x-sgml
sgml text/x-sgml
sh application/x-sh
shar application/x-shar
shtml magnus-internal/parsed-html
shw application/presentations
si6 image/si6
si7 image/vnd.stiwap.sis
si9 image/vnd.lgtwap.sis
sis application/vnd.symbian.install
sit application/x-stuffit
skd application/x-Koan
skm application/x-Koan
skp application/x-Koan
skt application/x-Koan
slc application/x-salsa
smd audio/x-smd
smi application/smil
smil application/smil
smp application/studiom
smz audio/x-smd
snd audio/basic
spc text/x-speech
spl application/futuresplash
spr application/x-sprite
sprite application/x-sprite
spt application/x-spt
src application/x-wais-source
stk application/hyperstudio
stm audio/x-mod
sv4cpio application/x-sv4cpio
sv4crc application/x-sv4crc
svf image/vnd
svg image/svg-xml
svh image/svh
svr x-world/x-svr
swf application/x-shockwave-flash
swfl application/x-shockwave-flash
t application/x-troff
tad application/octet-stream
talk text/x-speech
tar application/x-tar
taz application/x-tar
tbp application/x-timbuktu
tbt application/x-timbuktu
tcl application/x-tcl
tex application/x-tex
texi application/x-texinfo
texinfo application/x-texinfo
tgz application/x-tar
thm application/vnd.eri.thm
tif image/tiff
tiff image/tiff
tki application/x-tkined
tkined application/x-tkined
toc application/toc
toy image/toy
tr application/x-troff
trk x-lml/x-gps
trm application/x-msterminal
tsi audio/tsplayer
tsp application/dsptype
tsv text/tab-separated-values
tsv text/tab-separated-values
ttf application/octet-stream
ttz application/t-time
txt text/plain
ult audio/x-mod
ustar application/x-ustar
uu application/x-uuencode
uue application/x-uuencode
vcd application/x-cdlink
vcf text/x-vcard
vdo video/vdo
vib audio/vib
viv video/vivo
vivo video/vivo
vmd application/vocaltec-media-desc
vmf application/vocaltec-media-file
vmi application/x-dreamcast-vms-info
vms application/x-dreamcast-vms
vox audio/voxware
vqe audio/x-twinvq-plugin
vqf audio/x-twinvq
vql audio/x-twinvq
vre x-world/x-vream
vrml x-world/x-vrml
vrt x-world/x-vrt
vrw x-world/x-vream
vts workbook/formulaone
wav audio/x-wav
wax audio/x-ms-wax
wbmp image/vnd.wap.wbmp
web application/vnd.xara
wi image/wavelet
wis application/x-InstallShield
wm video/x-ms-wm
wma audio/x-ms-wma
wmd application/x-ms-wmd
wmf application/x-msmetafile
wml text/vnd.wap.wml
wmlc application/vnd.wap.wmlc
wmls text/vnd.wap.wmlscript
wmlsc application/vnd.wap.wmlscriptc
wmlscript text/vnd.wap.wmlscript
wmv audio/x-ms-wmv
wmx video/x-ms-wmx
wmz application/x-ms-wmz
wpng image/x-up-wpng
wpt x-lml/x-gps
wri application/x-mswrite
wrl x-world/x-vrml
wrz x-world/x-vrml
ws text/vnd.wap.wmlscript
wsc application/vnd.wap.wmlscriptc
wv video/wavelet
wvx video/x-ms-wvx
wxl application/x-wxl
x-gzip application/x-gzip
xar application/vnd.xara
xbm image/x-xbitmap
xdm application/x-xdma
xdma application/x-xdma
xdw application/vnd.fujixerox.docuworks
xht application/xhtml+xml
xhtm application/xhtml+xml
xhtml application/xhtml+xml
xla application/vnd.ms-excel
xlc application/vnd.ms-excel
xll application/x-excel
xlm application/vnd.ms-excel
xls application/vnd.ms-excel
xlt application/vnd.ms-excel
xlw application/vnd.ms-excel
xm audio/x-mod
xml text/xml
xmz audio/x-mod
xpi application/x-xpinstall
xpm image/x-xpixmap
xsit text/xml
xsl text/xml
xul text/xul
xwd image/x-xwindowdump
xyz chemical/x-pdb
yz1 application/x-yz1
z application/x-compress
zac application/x-zaurus-zac
zip application/zip