PHP服务器文件管理器开发小结(八):更多的操作——重命名、移动、删除
这一节介绍几个简单的文件操作的PHP实现:使用rename进行文件和文件夹的重命名以及移动,及使用unlink删除文件和使用rmdir删除文件夹。
rename函数的基本语法是
rename($oldname, $newname)
即将$oldname对应的文件或文件夹重命名为$newname对应的文件和文件夹。如果前后名称对应的是同一路径,则该函数仅尝试重命名,否则将尝试移动文件并重命名。
使文件和文件夹重命名的情况基本类似,因此采用同一的处理模式:
if (is_writable($filePath)) $info.= "<li><a href=\"#\" title=\"rename\" onClick=\"onElemAct(‘rename‘,‘$filePath‘)\"><img src=\"images/rename32.png\" alt=\"\" class=\"tabmenu\"/></a></li>";
前端使用jQueryUI提示用户:
case "rename": var strOldFileName = strViewPath.substr(strViewPath.lastIndexOf(‘/‘)+1); $(‘#textRename‘).val(strOldFileName); $(‘#dialogRename‘).dialog({ height:‘auto‘, width:‘auto‘, position:{my:‘center‘,at:‘center‘,collision:‘fit‘}, modal:false, draggable:true, resizable:true, title:"Rename File", show:‘slide‘, hide:‘explode‘, buttons:{ OK: function() { var strNewFileName = $(‘#textRename‘).val(); if (strNewFileName == "") return; $.post("query.php", {act:"rename", file:strViewPath, content:strNewFileName}, function (data) { $(‘#spanDirTable‘).html(data); $( ‘#dialogRename‘ ).dialog( "close" ); }); }, Cancel: function() { $( this ).dialog( "close" ); } } }); break;
对应的“原材料”:
<div id="dialogRename" style="display:none"> <strong>Rename Element:<br/></strong> Please input New Element Name:<input type="text" id="textRename"/> </div>
注意,这里在前端通过分析路径字符串提取出了原文件名。
对应的PHP响应:
case "rename": $isDirContentView = true; if (isset($_SESSION["currDir"])) { $strDirName = $_SESSION["currDir"]; } else $strDirName = "/home"; if (isset($_POST["file"]) && isset($_POST["content"])) { $strFilePath = $_POST["file"]; $strDirPath = dirname($strFilePath); $strNewPath = $strDirPath."/".$_POST["content"]; if (!file_exists($strNewPath) && rename($strFilePath, $strNewPath)) { echo "<script>alert(‘Element \"$strFilePath\" Rename to \"$strNewPath\" Succeed!‘)</script>"; } else { echo "<script>alert(‘Element \"$strFilePath\" Rename Failed!‘)</script>"; } } break;
注意,这里通过$isDirContentView = true;使得重命名后刷新文件夹内容。
具体效果:
移动文件需要输入目标路径名,这里通过jQueryUI要求用户输入,并保持移动前后文件名不变。
生成文件列表图片链接:
if (is_writable($filePath)) $info.= "<li><a href=\"#\" title=\"moveto\" onClick=\"onElemAct(‘move‘,‘$filePath‘)\"><img src=\"images/moveto32.png\" alt=\"\" class=\"tabmenu\"/></a></li>";
前端对话框响应:
case "move": $(‘#fileToMove‘).text(strViewPath); $(‘#dialogMoveFile‘).dialog({ height:‘auto‘, width:‘auto‘, position:{my:‘center‘,at:‘center‘,collision:‘fit‘}, modal:false, draggable:true, resizable:true, title:"Move File", show:‘slide‘, hide:‘explode‘, buttons:{ OK: function() { strTargetDir = $(‘#textMoveToDir‘).val(); //alert(strTargetDir); if (strTargetDir == "") return; $.post("query.php", {act:"moveFile", file:strViewPath, content:strTargetDir}, function (data) { $(‘#spanDirTable‘).html(data); $( ‘#dialogMoveFile‘ ).dialog( "close" ); }); }, Cancel: function() { $( this ).dialog( "close" ); } } }); break;
对应“原材料”:
<div id="dialogMoveFile" style="display:none"> Move File ‘<span id="fileToMove"></span>‘ To:<br/> Please input Dir Path:<input type="text" id="textMoveToDir"/> </div>
对应的后端响应:
case "moveFile": $isDirContentView = true; if (isset($_SESSION["currDir"])) { $strDirName = $_SESSION["currDir"]; } else $strDirName = "/home"; if (isset($_POST["file"]) && isset($_POST["content"])) { $strFilePath = $_POST["file"]; $strFileName = basename($strFilePath); $strMoveToDir = $_POST["content"]; if (!is_dir($strMoveToDir)) { echo "<script>alert(‘Target Dir \"$strMoveToDir\" Is Not Valid!‘)</script>"; break; } if (!is_writable($strMoveToDir)) { echo "<script>alert(‘Target Dir \"$strMoveToDir\" Is Not Writable!‘)</script>"; break; } $strMoveToPath = $strMoveToDir."/".$strFileName; if (file_exists($strMoveToPath)) { echo "<script>alert(‘Target Path \"$strMoveToPath\" Exists!‘)"; break; } if (rename($strFilePath, $strMoveToPath)) { echo "<script>alert(‘File \"$strFilePath\" Move to \"$strMoveToPath\" Succeed!‘)</script>"; } else { echo "<script>alert(‘File \"$strFilePath\" Move to \"$strMoveToPath\" Failed!‘)</script>"; } } break;
PHP通过basename获取原路径文件名,并与目标路径结合组成目标文件名,之后尝试rename文件移动。
具体效果:
删除文件需要使用unlink函数,基本流程同重命名类似。
文件列表图标链接:
if (is_writable($filePath)) $info.= "<li><a href=\"#\" title=\"delete\" onClick=\"onElemAct(‘deletefile‘,‘$filePath‘)\"><img src=\"images/delete32.png\" alt=\"\" class=\"tabmenu\"/></a></li>";
对应前端响应:
case "deletefile": $(‘#fileToDelete‘).text(strViewPath); $(‘#dialogDeleteFile‘).dialog({ height:‘auto‘, width:‘auto‘, position:{my:‘center‘,at:‘center‘,collision:‘fit‘}, modal:false, draggable:true, resizable:true, title:"Delete File", show:‘slide‘, hide:‘explode‘, buttons:{ OK: function() { $.post("query.php", {act:"deleteFile", file:strViewPath}, function (data) { $(‘#spanDirTable‘).html(data); $( ‘#dialogDeleteFile‘ ).dialog( "close" ); }); }, Cancel: function() { $( this ).dialog( "close" ); } } }); break;
“原材料”:
<div id="dialogDeleteFile" style="display:none"> Are you sure to delete file ‘<span id="fileToDelete"></span>‘? </div>
服务端响应:
case "deleteFile": $isDirContentView = true; if (isset($_SESSION["currDir"])) { $strDirName = $_SESSION["currDir"]; } else $strDirName = "/home"; if (isset($_POST["file"])) { $strFileName = $_POST["file"]; if (unlink($strFileName)) { echo "<script>alert(‘File \"$strFileName\" Delete Succeed!‘)</script>"; } else { echo "<script>alert(‘File \"$strFileName\" Delete Failed!‘)</script>"; } } break;
具体效果:
删除文件夹需要用到rmdir函数,然而rmdir函数仅能删除空文件夹,如果需要将带有内容的文件夹整个删除需要递归删除。下面是作者设计的递归删除文件夹内容函数:
function removeDir($strDirName) { if (!is_dir($strDirName)) return false; if (!($hDir = opendir($strDirName))) { return false; } $isSucceed = true; while (($fileName = readdir($hDir))!==false) { if ($fileName == "." || $fileName == "..") continue; $filePath = $strDirName."/".$fileName; if (is_file($filePath)) { $isSucceed = unlink($filePath); if (!$isSucceed) break; } if (is_dir($filePath)) { $isSucceed = removeDir($filePath); if (!$isSucceed) break; } } closedir($hDir); if ($isSucceed) { $isSucceed = rmdir($strDirName); } return $isSucceed; }
使用这一函数代替rmdir即可对有内容的文件夹实现递归删除。下面给出具体代码实现。
首先是图标链接:
if (is_writable($filePath)) $info.= "<li><a href=\"#\" title=\"delete\" onClick=\"onElemAct(‘deletedir‘,‘$filePath‘)\"><img src=\"images/delete32.png\" alt=\"\" class=\"tabmenu\"/></a></li>";
然后是前端响应:
case "deletedir": $(‘#dirToDelete‘).text(strViewPath); $(‘#dialogDeleteDir‘).dialog({ height:‘auto‘, width:‘auto‘, position:{my:‘center‘,at:‘center‘,collision:‘fit‘}, modal:false, draggable:true, resizable:true, title:"Delete Directory", show:‘slide‘, hide:‘explode‘, buttons:{ OK: function() { $.post("query.php", {act:"deleteDir", file:strViewPath}, function (data) { $(‘#spanDirTable‘).html(data); $( ‘#dialogDeleteDir‘ ).dialog( "close" ); }); }, Cancel: function() { $( this ).dialog( "close" ); } } }); break;
对应“原材料”:
<div id="dialogDeleteDir" style="display:none"> Are you sure to delete directory ‘<span id="dirToDelete"></span>‘ and remove all files and sub-directories under it? </div>
后端响应:
case "deleteDir": $isDirContentView = true; if (isset($_SESSION["currDir"])) { $strDirName = $_SESSION["currDir"]; } else $strDirName = "/home"; if (isset($_POST["file"])) { $strFileName = $_POST["file"]; if (removeDir($strFileName)) { echo "<script>alert(‘Directory \"$strFileName\" Delete Succeed!‘)</script>"; } else { echo "<script>alert(‘Directory \"$strFileName\" Delete Failed!‘)</script>"; } } break;
具体效果:
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