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 ; } ?> |
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 > |
希望本文所述对大家的PHP程序设计有所帮助。