关于PHP上传CSV有关问题。

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<?php exit;?>01-02 10:49:16 | 2 | fopen() [<a href='function.fopen'>function.fopen</a>]: Filename cannot be empty |<br />
<?php exit;?>01-02 10:49:16 | 2 | fgetcsv() expects parameter 1 to be resource, boolean given | <br />
<?php exit;?>01-02 10:49:16 | 2 | fclose() expects parameter 1 to be resource, boolean given | <br />

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<form name="myform" id="myform" action="index.php?m=price&c=index&a=insertalldo" method="post" enctype="multipart/form-data"><input name="pc_hash" type="hidden" value="4GxoOl"></form><br />

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 $file=$_FILES["file"]; <br />
 $file_type = substr(strstr($file['name'],'.'),1);<br />
 setlocale(LC_ALL, 'zh_CN');<br />
 $row=1;<br />
 $handle = fopen($file['tmp_name'],"r");<br />
 while ($data = fgetcsv($handle,1000,',')){<br />
 print_r($data);<br />
  $row++;<br />
           }  <br />