本文以一个完整实例的形式实现了视频文件上传的功能。虽然是比较基础的应用,仍有一定的参考价值。分享给大家供大家参考之用。具体方法如下:
首先,对PHP来说视频也属于文件,我们利用这个道理,可以通过与上传普通文件类似的方式实现上传PHP视频文件。不同的是视频文件一般较大,上传时间长,而php配置文件也对上传文件的大小有限制。
如果需要更好地用PHP实现文件上传,还是推荐使用FTP上传方式。
一、PHP处理代码如下:
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<?php
//设置最多允许10个文件同时上传
define( 'MUILTI_FILE_UPLOAD' , '10' );
//设置文件大小不超过5MB
define( 'MAX_SIZE_FILE_UPLOAD' , '500000' );
//设置上传文件的存储目录
define( 'FILE_UPLOAD_DIR' , '/fileUploads' );
//允许上传的文件扩展名
$array_extention_interdite = array ( '.flv' , '.wmv' , '.rmvb' , '.php' , '.php3' , '.php4' , '.exe' , '.msi' , '.htaccess' , '.gz' );
//显示信息的公共函数
function func_message( $message = '' , $ok = '' ){
echo '<table width="100%" cellspacing="0" cellpadding="0" border="0">' ;
if ( $ok == true)
echo '<tr><td width="50%"> ' . $message . '</td></tr>' ;
else
echo '<tr><td width="50%"> ' . $message . '</td></tr>' ;
echo '</table>' ;
}
//处理表单提交
$action = (isset( $_POST [ 'action' ])) ? $_POST [ 'action' ] : '' ;
$file = (isset( $_POST [ 'file' ])) ? $_POST [ 'file' ] : '' ;
if ( $file != '' )
$file = $file . '/' ;
$message_true = '' ;
$message_false = '' ;
switch ( $action ){
case 'upload' :
chmod (FILE_UPLOAD_DIR,0777);
for ( $nb = 1 ; $nb <= MUILTI_FILE_UPLOAD ; $nb ++ ){
if ( $_FILES [ 'file_' . $nb ][ 'size' ] >= 10 ){
if ( $_FILES [ 'file_' . $nb ][ 'size' ] <= MAX_SIZE_FILE_UPLOAD ){
if (!in_array( ereg_replace ( '^[[:alnum:]]([-_.]?[[:alnum:]])*.' , '.' , $_FILES [ 'file_' . $nb ][ 'name' ] ) , $array_extention_interdite ) ){
if ( $_POST [ 'file_name_' . $nb ] != '' )
$file_name_final = $_POST [ 'file_name_' . $nb ]. $extension ;
else
$file_name_final = $_FILES [ 'file_' . $nb ][ 'name' ] ;
//修改文件名
$file_name_final = strtr ( $file_name_final , 'aaaaaa' , 'AAAAAACEEEEIIIIOOOOOUUUUYaaaaaaceeeeiiiioooooouuuuyy' );
$file_name_final = preg_replace( '/([^.a-z0-1]+)/i' , '_' , $file_name_final );
$_FILES [ 'file_' . $nb ][ 'name' ] = $file_name_final ;
//开始上传
move_uploaded_file( $_FILES [ 'file_' . $nb ][ 'tmp_name' ] , FILE_UPLOAD_DIR . $file . $file_name_final );
$message_true .= '文件上传成功 : ' . $_FILES [ 'file_' . $nb ][ 'name' ] . '<br>' ;
} else
$message_false .= '文件上传失败 : ' . $_FILES [ 'file_' . $nb ][ 'name' ] . ' <br>' ;
} else
$message_false .= '文件最大尺寸不能超过' .MAX_SIZE_FILE_UPLOAD/1000 . 'KB : "' . $_FILES [ 'file_' . $nb ][ 'tmp_name' ]. '" <br>' ;
}
} //end for
break ;
}
?>
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二、HTML代码如下:
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< html >
< head >
< meta http-equiv = "Content-Type" content = "text/html; charset=utf-8" >
</ head >
< title >PHP文件上传</ title >
< style type = "text/css" rel = "stylesheet" />
.border{
background-color:#000000
}
.box{
background-color:#f8f8f9;
}
.text{
color:#000000;
font-family: "宋体";
font-size: 12px;
font-weight:bold
}
input, select{
font-size: 12px;
}
body{
margin: 0;
}
</ style >
< body >
<!-- 文件上传表单,enctype属性是必须的 -->
< form name = "form" enctype = "multipart/form-data" method = "post" action="<?php echo $_SERVER['PHP_SELF'] ; ?>">
< input type = "hidden" name = "action" value = "upload" >
< table border = "0" cellspacing = "1" cellpadding = "0" align = "center" class = "border" >
< tr >
< td >
<? php
if($message_true != '')
func_message($message_true, true);
if($message_false != '')
func_message($message_false, false);
?>
< table width = "100%" border = "0" cellspacing = "5" cellpadding = "2" align = "center" class = "box" >
<? php
for($ nb = 1 ; $nb <= MUILTI_FILE_UPLOAD ; $nb ++ ){
?>
< tr class = "text" >
< td >上传文件: <? php echo $nb; ?></ td >
< td >< input type = "file" name="file_<?php echo $nb; ?>"></ td >
< td >新文件名(包括扩展名):<? php echo $nb; ?> </ td >
< td >< input type = "text" name="file_name_<?php echo $nb; ?>"></ td >
</ tr >
<? php } ?>
< tr >
< td colspan = "2" align = "right" class = "text" >
上传目的地址:<? php echo FILE_UPLOAD_DIR ;?>
< select name = "file" >
< option value = "" ></ option >
<? php
$ repertoire = opendir (FILE_UPLOAD_DIR);
while( $ file = readdir ($repertoire) ) {
$ file = str_replace ('.','',$file);
if( is_dir($file)) {
?>
< option value="<?php echo $file; ?>"> <? php echo $file; ?>/</ option >
<? php
}
}
closedir($repertoire);
?>
</ select >
</ td >
< td colspan = "2" align = "right" >< input type = "submit" value="可同时上传<?php echo $nb-1; ?> 个文件 "></ td >
</ tr >
</ table >
</ td >
</ tr >
</ table >
</ form >
</ body >
</ html >
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希望本文所述对大家的PHP程序设计有所帮助。