upload.php

PHP4_0入门与提高源程序代码

<?php
if ($HTTP_POST_FILES['userfile']['name'] == ''){	//如果上载文件名为空，表示用户还
//没有填写表单；返回表单供客户端填写

echo "<FORM ENCTYPE=\"multipart/form-data\" ACTION=$PHP_SELF METHOD=POST>";
echo "<INPUT TYPE=\"hidden\" name=\"MAX_FILE_SIZE\" value=\"1000000000\">";
echo "Send this file: <INPUT NAME=\"userfile\" TYPE=\"file\"><br>\n";
echo "<INPUT TYPE=\"submit\" VALUE=\"Send File\">";
echo "</FORM>";
}
else {	//对表单中的变量做处理
//输出上载文件的信息
        echo "\$HTTP_POST_FILES['userfile']['name']:\t".$HTTP_POST_FILES['userfile']['name']."<br>\n";
        echo "\$HTTP_POST_FILES['userfile']['size']:\t".$HTTP_POST_FILES['userfile']['size']."<br>\n";
        echo "\$HTTP_POST_FILES['userfile']['type']:\t".$HTTP_POST_FILES['userfile']['type']."<br>\n";
        echo "\$HTTP_POST_FILES['userfile']['tmp_name']:\t".$HTTP_POST_FILES['userfile']['tmp_name']."<br>\n";
		//上载完成，输出完成信息
        if (is_uploaded_file($HTTP_POST_FILES['userfile']['tmp_name'])) {
                echo "upload ok!<br>\n";
                move_uploaded_file($HTTP_POST_FILES['userfile']['tmp_name'],"/tmp/upload.html");
                }
        else {
            echo "Possible file upload attack:";
        }
		//清空数组
        $HTTP_POST_FILES['userfile']['name'] = "";
        $HTTP_POST_FILES['userfile']['size'] = "";
        $HTTP_POST_FILES['userfile']['type'] = "";
}
?>