CMD_1input_data isset($_GET['file'])){ $file = $_GET['file']; include($file);

CMD_1是一个命令，用于判断是否存在名为'file'的GET参数。如果存在，将获取该参数的值，并将该值赋给变量$file。之后，将使用include函数将该文件包含进来。[2]<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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