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return message("文件格式不正确:" . $ext, false);
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return message("文件格式不正确:" . $ext, false);
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$file_name = ($userId? $userId.'_'.str_replace('=','',base64_encode(date('YmdHis').$userId.$original_name)): str_replace('=','',base64_encode(date('YmdHis').$original_name)));
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$file_name = ($userId? $userId.'_'.str_replace('=','',base64_encode(date('YmdHis').$userId.$original_name)): str_replace('=','',base64_encode(date('YmdHis').$original_name)));
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