编辑web文件管理器

<?php
/**
* 操作配置
*/
include "common.php";
// 判断点击操作
if ($act == "创建文件") {
   // 创建文件操作
   $mes = create_file($path . "/" . $filename);
   // 设置提示弹窗
   alertMes($mes, $url);
   // 判断点击操作
} elseif ($act == "showContent") {
   // 查询文件内容
   $content = read_file($filename);
   // 判断文件是否有内容
   if (strlen($content)) {
       // 给字符串添加高亮
       $newContent = highlight_string($content, true);
       // 制作显示表格
       $str = <<<HERE
   <table width="100%" bgcolor="#ffc0cb" cellpadding="5" cellspacing="0">
   <tr>
   <td>{$newContent}</td>
</tr>
</table>
HERE;
       echo $str;
   } else {
       alertMes('文件为空！请编辑后再查看~', $url);
   }
   // 判断点击操作
} elseif ($act == "editContent") {
   // 获取文件内容
   $content = file_get_contents($filename);
   // 制作表单
   $str = <<<HERE
<form action="index.php?act=doEdit" method="post">
   <textarea cols="180" rows="10" name="content">{$content}</textarea>
   <input type="hidden" name="filename" value="{$filename}">
   <input type="submit" value="修改内容">
</form>
HERE;
   echo $str;
   // 判断操作
} elseif ($act == "doEdit") {
   // 获取修改内容
   $content = $_REQUEST['content'];
   // 进行修改并判断
   if (file_put_contents($filename, $content)) {
       $mes = '文件修改成功！';
   } else {
       $mes = '文件修改失败！';
   }
   alertMes($mes, $url);
} elseif ($act == "renameFile") {
   $str = <<<HERE
<form action="index.php?act=doRename" method="post">
请输入文件新名称：<input type="text" name="newName" placeholder="输入新名称">
<input type="hidden" name="path" value="{$path}">
<input type="hidden" name="filename" value="{$filename}">
<input type="submit" value="重命名">
</form>
HERE;
   echo $str;
   // 判断操作
} elseif ($act == "doRename") {
   // 接收新名称
   $newName = $_REQUEST['newName'];
   // 进行修改文件名
   var_dump($path);
   $mes = rename_file($filename, $path . "/" . $newName);
   // 提示操作
   alertMes($mes, $url);
   // 判断点击操作
} elseif ($act == "copyFile") {
   // 制作表单
   $str = <<<HERE
<form action="index.php?act=doCopyFile" method="post">
文件复制到：<input type="text" name="destName" placeholder="将文件复制到">
<input type="hidden" name="path" value="{$path}">
<input type="hidden" name="filename" value="{$filename}">
<input type="submit" value="复制文件">
</form>
HERE;
   echo $str;
   // 判断操作
} elseif ($act == "doCopyFile") {
   // 接收目标目录
   $destName = $_REQUEST['destName'];
   // 进行复制操作
   $mes = copy_file($filename, $path . "/" . $destName);
   // 提示操作
   alertMes($mes, $url);
} elseif ($act == "cutFile") {
   $str = <<<HERE
<form action="index.php?act=doCutFile" method="post">
文件剪切到：<input type="text" name="destName" placeholder="将文件剪切到">
<input type="hidden" name="path" value="{$path}">
<input type="hidden" name="filename" value="{$filename}">
<input type="submit" value="剪切文件">
</form>
HERE;
   echo $str;
} elseif ($act == "doCutFile") {
   $destName = $_REQUEST['destName'];
   $mes = cut_file($filename, $path . "/" . $destName);
   alertMes($mes, $url);
} elseif ($act == "dowFile") {
   $mes = dow_file($filename);
} elseif ($act == "delFile") {
   if (unlink($filename)) {
       alertMes("文件删除成功！", $url);
   } else {
       alertMes("文件删除失败！", $url);
   }
} elseif ($act == "上传文件") {
   $fileInfo = $_FILES['myFile'];
   $mes = upload_file($fileInfo, $path);
   alertMes($mes, $url);
} elseif ($act == "创建文件夹") {
   $mes = create_folder($path . "/" . $dirname);
   alertMes($mes, $url);
} elseif ($act == "renameFolder") {
   $str = <<<HERE
<form action="index.php?act=doRenameFolder" method="post">
重命名为：<input type="text" name="newFolderName" placeholder="请输入文件夹名称">
<input type="hidden" name="dirname" value="{$dirname}">
<input type="hidden" name="path" value="{$path}">
<input type="submit" value="重命名">
</form>
HERE;
   echo $str;
} elseif ($act == "doRenameFolder") {
   $newFolderName = $_REQUEST['newFolderName'];
   $mes = rename_dir($dirname, $path . "/" . $newFolderName);
   alertMes($mes, $url);

} elseif ($act == "copyFolder") {
   $str = <<<HERE
<form action="index.php?act=doCopyFolder" method="post">
复制为：<input type="text" name="newFolderName" placeholder="复制文件夹到">
<input type="hidden" name="dirname" value="{$dirname}">
<input type="hidden" name="path" value="{$path}">
<input type="submit" value="复制">
</form>
HERE;
   echo $str;
} elseif ($act == "doCopyFolder") {
   $newFolderName = $_REQUEST['newFolderName'];
   $mes = copy_dir($dirname, $path . "/" . $newFolderName . "/" . basename($dirname));
   alertMes($mes, $url);
} elseif ($act == "cutFolder") {
   $str = <<<HERE
<form action="index.php?act=doCutFolder" method="post">
剪切为：<input type="text" name="newFolderName" placeholder="剪切文件夹到">
<input type="hidden" name="dirname" value="{$dirname}">
<input type="hidden" name="path" value="{$path}">
<input type="submit" value="剪切">
</form>
HERE;
   echo $str;
} elseif ($act == "doCutFolder") {
   $newFolderName = $_REQUEST['newFolderName'];
   $mes = cut_dir($dirname, $path . "/" . $newFolderName);
   alertMes($mes, $url);
} elseif ($act == "delFolder") {
   $mes = del_folder($dirname);
   alertMes($mes, $url);
}