php 实现多文件上传程序代码

php文件上传与多文件上传其它没有多大的区别,多文件上传只是我们把表单名改成数组形式,而获取利用foreach遍历就可以实现多文件上传了,动态多文件上传只要在js加一个动态增加多文件上传框,同样在php处理时就遍历一下数组就成了.

最简单的实例如下,代码如下:

<form action= "" method= "post" enctype= "multipart/form-data" > <p>Pictures: <input type= "file" name= "pictures[]" /> <input type= "file" name= "pictures[]" /> <input type= "file" name= "pictures[]" /> <input type= "submit" value= "Send" /> </p> </form>        <?php foreach ( $_FILES [ "pictures" ][ "error" ] as $key => $error ) {          if ( $error == UPLOAD_ERR_OK) {              $tmp_name = $_FILES [ "pictures" ][ "tmp_name" ][ $key ];              $name = $_FILES [ "pictures" ][ "name" ][ $key ];             move_uploaded_file( $tmp_name , "data/$name" );         } } ?>
下面分享其它朋友的例子,代码如下:

<?php //filename:multi_upload.php if ( $ifupload ) { $path = AddSlashes (dirname( $PATH_TRANSLATED )). "\upload\" ; for ( $i =1; $i <=8; $i ++) { $files = "afile" . $i ; if (${ $files }!= "none" ) { if ( copy (${ $files }, $path .${ $files . "_name" })) { } } } print "<b>You have uploaded files successfully</b><br>" ; print "<a href=" multi_upload.php ">Return</a>" ; exit ; } ?> <html> <html> <head> <meta http-equiv= "Content-Type" content= "text/html; charset=gb2312" > <meta NAME= "GENERATOR" Content= "Microsoft Visual Studio 6.0" > <title>多个文件上传</title> <style type= "text/css" >  </style> <script language= "javascript" > function window.onload() { document.forms[0].btnOk.onclick=btn_ok; } function btn_ok() { for ( var i=1;i<=8;i++) { if ( eval ( "document.forms[0].afile" +i+ ".value!=''" )) document.forms[0].submit(); return true; } alert( "None of file have been selected" ); return false; } </script> </head> <body> <form method= "post" action= "multi_upload.php" name= "frmUpload" enctype= "multipart/form-data" > <table id= "divContainer" style= "HEIGHT: 100%; WIDTH: 380" border= "0" > <tr height= "35" ><td align= "right" valign= "bottom" >多文件上传 </td></tr> <tr><td align= "center" valign= "top" > <table class = "Transex" border= "0" cellspacing= "0" cellpadding= "0" style= "WIDTH: 360px" > <tr style= "HEIGHT: 10px" > <td style= "WIDTH: 5px" ></td> <td colspan= "2" ></td>   <td style= "WIDTH: 5px" ></td> </tr> <tr> <td></td> <td nowrap><label class = "FieldLabel" > 文件1</label></td> <td><input type= "file" class = "TxtInput" tabindex= "1" name= "afile1" style= "WIDTH: 282px" ></td> <td></td> </tr> <tr> <td></td> <td nowrap><label class = "FieldLabel" > 文件2</label></td> <td><input type= "file" class = "TxtInput" tabindex= "2" name= "afile2" style= "WIDTH: 282px" ></td> <td></td> </tr> <tr> <td></td> <td nowrap><label class = "FieldLabel" > 文件3</label></td> <td><input type= "file" class = "TxtInput" tabindex= "3" name= "afile3" style= "WIDTH: 282px" ></td> <td></td> </tr> <tr> <td></td> <td nowrap><label class = "FieldLabel" > 文件4</label></td> <td><input type= "file" class = "TxtInput" tabindex= "4" name= "afile4" style= "WIDTH: 282px" ></td> <td></td> </tr> <tr> <td></td> <td nowrap><label class = "FieldLabel" > 文件5</label></td> <td><input type= "file" class = "TxtInput" tabindex= "5" name= "afile5" style= "WIDTH: 282px" ></td> <td></td> </tr> <tr> <td></td> <td nowrap><label class = "FieldLabel" > 文件6</label></td> <td><input type= "file" class = "TxtInput" tabindex= "6" name= "afile6" style= "WIDTH: 282px" ></td> <td></td> </tr> <tr> <td></td> <td nowrap><label class = "FieldLabel" > 文件7</label></td> <td><input type= "file" class = "TxtInput" tabindex= "7" name= "afile7" style= "WIDTH: 282px" ></td> <td></td> </tr> <tr> <td></td> <td nowrap><label class = "FieldLabel" > 文件8</label></td> <td><input type= "file" class = "TxtInput" tabindex= "8" name= "afile8" style= "WIDTH: 282px" ></td> //开源代码phpfensi.com <td></td> </tr> <tr style= "HEIGHT: 5px" > <td style= "WIDTH: 5px" > <td style= "WIDTH: 350px" colspan= "2" ><hr width= "100%" ></td>   <td style= "WIDTH: 5px" ></td> </tr> <tr> <td></td> <td colspan= "2" align= "left" > <button tabindex= "5" class = "headbtn" align= "center" name= "btnOk" id= "btnOk" accesskey= "O" >确定(<ins>O</ins>)</button> <input type= "hidden" name= "ifupload" value=1> <button tabindex= "5" class = "headbtn" align= "center" name= "btnCancel" id= "btnCancel" accesskey= "C" onclick= "window.close();" >取消(<ins>C</ins>)</button></td>   <td></td> </tr> <tr style= "HEIGHT: 5px" > <td style= "WIDTH: 5px" > <td style= "WIDTH: 350px" colspan= "2" ></td>   <td style= "WIDTH: 5px" ></td> </tr> </table> </td> </tr> </table> </form> </body> </html>
如果我们要动态不确定性的多文件上传怎么实现下面也有实例,代码如下:

<!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=gb2312" />   <title>文档上传</title>   </head>   <body>   <script language= "javascript" >   function AddRow()   {   var eNewRow = tblData.insertRow();   for ( var i=0;i<1;i++)   {   var eNewCell = eNewRow.insertCell();   eNewCell.innerHTML = "<tr><td><input type='file' name='filelist[]' size='50'/></td></tr>" ;   }   }   // --></script> <form name= "myform" method= "post" action= "uploadfile.php" enctype= "multipart/form-data" >   <table id= "tblData" width= "400" border= "0" >         <input name= "postadd" type= "hidden" value= "<?php echo " http: //".$_SERVER['HTTP_HOST'].$_SERVER["PHP_SELF"]; ?>" /> <tr><td>文件上传列表   <input type= "button" name= "addfile" onclick= "AddRow()" value= "添加列表" /></td></tr>      <tr><td><input type= "file" name= "filelist[]" size= "50" /></td></tr>   </table>   <input type= "submit" name= "submitfile" value= "提交文件" />   </form>   </body>   </html>   <!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=gb2312" />   <title>文档上传</title>   </head>   <body>   <script language= "javascript" >   function AddRow()   {   var eNewRow = tblData.insertRow();   for ( var i=0;i<1;i++)   {   var eNewCell = eNewRow.insertCell();   eNewCell.innerHTML = "<tr><td><input type='file' name='filelist[]' size='50'/></td></tr>" ;   }   }   // --></script> <form name= "myform" method= "post" action= "uploadfile.php" enctype= "multipart/form-data" >   <table id= "tblData" width= "400" border= "0" >         <input name= "postadd" type= "hidden" value= "<?php echo " http: //".$_SERVER['HTTP_HOST'].$_SERVER["PHP_SELF"]; ?>" /> <tr><td>文件上传列表   <input type= "button" name= "addfile" onclick= "AddRow()" value= "添加列表" /></td></tr>      <tr><td><input type= "file" name= "filelist[]" size= "50" /></td></tr>   </table>   <input type= "submit" name= "submitfile" value= "提交文件" />   </form> </body> </html>
提交文件代码:

<!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=gb2312" />   <title>文件上传结果</title>   </head>   <body>   <?php   if ( $_POST [ "submitfile" ]!= "" )   {   $Path = "./" . date ( 'Ym' ). "/" ;   if (! is_dir ( $Path )) //创建路径 { mkdir ( $Path ); }   echo "<div>" ;   for ( $i =0; $i < count ( $filelist ); $i ++)   { //$_FILES["filelist"]["size"][$i]的排列顺序不可以变，因为fileist是一个二维数组 if ( $_FILES [ "filelist" ][ "size" ][ $i ]!=0)   {   $File = $Path . date ( 'Ymdhm' ). "_" . $_FILES [ "filelist" ][ "name" ][ $i ];   if (move_uploaded_file( $_FILES [ "filelist" ][ "tmp_name" ][ $i ], $File ))   { echo "文件上传成功文件类型:" . $_FILES [ "filelist" ][ "type" ][ $i ]. " " . "文件名:"    . $_FILES [ "filelist" ][ "name" ][ $i ]. "<br>" ; }   else    { echo "文件名:" . $_FILES [ "filelist" ][ "name" ][ $i ]. "上传失败</br>" ; }   }   }   echo "</div><br><a href=" $postadd " href=" $postadd ">返回</a></div>" ;   }   ?>   </body>   </html>
另:错误信息说明

从 PHP 4.2.0 开始,PHP 将随文件信息数组一起返回一个对应的错误代码,该代码可以在文件上传时生成的文件数组中的 error 字段中被找到,也就是 $_FILES['userfile']['error']。

UPLOAD_ERR_OK

其值为 0,没有错误发生,文件上传成功.

UPLOAD_ERR_INI_SIZE

其值为 1,上传的文件超过了 php.ini 中 upload_max_filesize 选项限制的值.

UPLOAD_ERR_FORM_SIZE

其值为 2,上传文件的大小超过了 HTML 表单中 MAX_FILE_SIZE 选项指定的值.UPLOAD_ERR_PARTIAL

其值为 3,文件只有部分被上传.

UPLOAD_ERR_NO_FILE

其值为 4,没有文件被上传.

UPLOAD_ERR_NO_TMP_DIR

其值为 6,找不到临时文件夹。PHP 4.3.10 和 PHP 5.0.3 引进.

UPLOAD_ERR_CANT_WRITE

其值为 7,文件写入失败。PHP 5.1.0 引进.

注意:以上值在 PHP 4.3.0 之后变成了 PHP 常量.

查看更多关于php 实现多文件上传程序代码 - php上传下载的详细内容...

声明：本文来自网络，不代表【好得很程序员自学网】立场，转载请注明出处：http://www.haodehen.cn/did29322

更新时间：2022-09-18 阅读：58次