建立FileUtil.php文件,內容及呼叫方式如下:
<span>php </span><span>/*</span><span>* * 操纵文件类 * * 例子: * FileUtil::createDir('a/1/2/3'); 测试建立文件夹 建一个a/1/2/3文件夹 * FileUtil::createFile('b/1/2/3'); 测试建立文件 在b/1/2/文件夹下面建一个3文件 * FileUtil::createFile('b/1/2/3.exe'); 测试建立文件 在b/1/2/文件夹下面建一个3.exe文件 * FileUtil::copyDir('b','d/e'); 测试复制文件夹 建立一个d/e文件夹,把b文件夹下的内容复制进去 * FileUtil::copyFile('b/1/2/3.exe','b/b/3.exe'); 测试复制文件 建立一个b/b文件夹,并把b/1/2文件夹中的3.exe文件复制进去 * FileUtil::moveDir('a/','b/c'); 测试移动文件夹 建立一个b/c文件夹,并把a文件夹下的内容移动进去,并删除a文件夹 * FileUtil::moveFile('b/1/2/3.exe','b/d/3.exe'); 测试移动文件 建立一个b/d文件夹,并把b/1/2中的3.exe移动进去 * FileUtil::unlinkFile('b/d/3.exe'); 测试删除文件 删除b/d/3.exe文件 * FileUtil::unlinkDir('d'); 测试删除文件夹 删除d文件夹 </span><span>*/</span><span>class</span><span> FileUtil { </span><span>/*</span><span>* * 建立文件夹 * * @param string $aimUrl * @return viod </span><span>*/</span><span>function</span> createDir(<span>$aimUrl</span><span>) { </span><span>$aimUrl</span> = <span>str_replace</span>('', '/', <span>$aimUrl</span><span>); </span><span>$aimDir</span> = ''<span>; </span><span>$arr</span> = <span>explode</span>('/', <span>$aimUrl</span><span>); </span><span>$result</span> = <span>true</span><span>; </span><span>foreach</span> (<span>$arr</span><span>as</span><span>$str</span><span>) { </span><span>$aimDir</span> .= <span>$str</span> . '/'<span>; </span><span>if</span> (!<span>file_exists</span>(<span>$aimDir</span><span>)) { </span><span>$result</span> = <span>mkdir</span>(<span>$aimDir</span><span>); } } </span><span>return</span><span>$result</span><span>; } </span><span>/*</span><span>* * 建立文件 * * @param string $aimUrl * @param boolean $overWrite 该参数控制是否覆盖原文件 * @return boolean </span><span>*/</span><span>function</span> createFile(<span>$aimUrl</span>, <span>$overWrite</span> = <span>false</span><span>) { </span><span>if</span> (<span>file_exists</span>(<span>$aimUrl</span>) && <span>$overWrite</span> == <span>false</span><span>) { </span><span>return</span><span>false</span><span>; } </span><span>elseif</span> (<span>file_exists</span>(<span>$aimUrl</span>) && <span>$overWrite</span> == <span>true</span><span>) { FileUtil </span>:: unlinkFile(<span>$aimUrl</span><span>); } </span><span>$aimDir</span> = <span>dirname</span>(<span>$aimUrl</span><span>); FileUtil </span>:: createDir(<span>$aimDir</span><span>); </span><span>touch</span>(<span>$aimUrl</span><span>); </span><span>return</span><span>true</span><span>; } </span><span>/*</span><span>* * 移动文件夹 * * @param string $oldDir * @param string $aimDir * @param boolean $overWrite 该参数控制是否覆盖原文件 * @return boolean </span><span>*/</span><span>function</span> moveDir(<span>$oldDir</span>, <span>$aimDir</span>, <span>$overWrite</span> = <span>false</span><span>) { </span><span>$aimDir</span> = <span>str_replace</span>('', '/', <span>$aimDir</span><span>); </span><span>$aimDir</span> = <span>substr</span>(<span>$aimDir</span>, -1) == '/' ? <span>$aimDir</span> : <span>$aimDir</span> . '/'<span>; </span><span>$oldDir</span> = <span>str_replace</span>('', '/', <span>$oldDir</span><span>); </span><span>$oldDir</span> = <span>substr</span>(<span>$oldDir</span>, -1) == '/' ? <span>$oldDir</span> : <span>$oldDir</span> . '/'<span>; </span><span>if</span> (!<span>is_dir</span>(<span>$oldDir</span><span>)) { </span><span>return</span><span>false</span><span>; } </span><span>if</span> (!<span>file_exists</span>(<span>$aimDir</span><span>)) { FileUtil </span>:: createDir(<span>$aimDir</span><span>); } @ </span><span>$dirHandle</span> = <span>opendir</span>(<span>$oldDir</span><span>); </span><span>if</span> (!<span>$dirHandle</span><span>) { </span><span>return</span><span>false</span><span>; } </span><span>while</span> (<span>false</span> !== (<span>$file</span> = <span>readdir</span>(<span>$dirHandle</span><span>))) { </span><span>if</span> (<span>$file</span> == '.' || <span>$file</span> == '..'<span>) { </span><span>continue</span><span>; } </span><span>if</span> (!<span>is_dir</span>(<span>$oldDir</span> . <span>$file</span><span>)) { FileUtil </span>:: moveFile(<span>$oldDir</span> . <span>$file</span>, <span>$aimDir</span> . <span>$file</span>, <span>$overWrite</span><span>); } </span><span>else</span><span> { FileUtil </span>:: moveDir(<span>$oldDir</span> . <span>$file</span>, <span>$aimDir</span> . <span>$file</span>, <span>$overWrite</span><span>); } } </span><span>closedir</span>(<span>$dirHandle</span><span>); </span><span>return</span><span>rmdir</span>(<span>$oldDir</span><span>); } </span><span>/*</span><span>* * 移动文件 * * @param string $fileUrl * @param string $aimUrl * @param boolean $overWrite 该参数控制是否覆盖原文件 * @return boolean </span><span>*/</span><span>function</span> moveFile(<span>$fileUrl</span>, <span>$aimUrl</span>, <span>$overWrite</span> = <span>false</span><span>) { </span><span>if</span> (!<span>file_exists</span>(<span>$fileUrl</span><span>)) { </span><span>return</span><span>false</span><span>; } </span><span>if</span> (<span>file_exists</span>(<span>$aimUrl</span>) && <span>$overWrite</span> = <span>false</span><span>) { </span><span>return</span><span>false</span><span>; } </span><span>elseif</span> (<span>file_exists</span>(<span>$aimUrl</span>) && <span>$overWrite</span> = <span>true</span><span>) { FileUtil </span>:: unlinkFile(<span>$aimUrl</span><span>); } </span><span>$aimDir</span> = <span>dirname</span>(<span>$aimUrl</span><span>); FileUtil </span>:: createDir(<span>$aimDir</span><span>); </span><span>rename</span>(<span>$fileUrl</span>, <span>$aimUrl</span><span>); </span><span>return</span><span>true</span><span>; } </span><span>/*</span><span>* * 删除文件夹 * * @param string $aimDir * @return boolean </span><span>*/</span><span>function</span> unlinkDir(<span>$aimDir</span><span>) { </span><span>$aimDir</span> = <span>str_replace</span>('', '/', <span>$aimDir</span><span>); </span><span>$aimDir</span> = <span>substr</span>(<span>$aimDir</span>, -1) == '/' ? <span>$aimDir</span> : <span>$aimDir</span> . '/'<span>; </span><span>if</span> (!<span>is_dir</span>(<span>$aimDir</span><span>)) { </span><span>return</span><span>false</span><span>; } </span><span>$dirHandle</span> = <span>opendir</span>(<span>$aimDir</span><span>); </span><span>while</span> (<span>false</span> !== (<span>$file</span> = <span>readdir</span>(<span>$dirHandle</span><span>))) { </span><span>if</span> (<span>$file</span> == '.' || <span>$file</span> == '..'<span>) { </span><span>continue</span><span>; } </span><span>if</span> (!<span>is_dir</span>(<span>$aimDir</span> . <span>$file</span><span>)) { FileUtil </span>:: unlinkFile(<span>$aimDir</span> . <span>$file</span><span>); } </span><span>else</span><span> { FileUtil </span>:: unlinkDir(<span>$aimDir</span> . <span>$file</span><span>); } } </span><span>closedir</span>(<span>$dirHandle</span><span>); </span><span>return</span><span>rmdir</span>(<span>$aimDir</span><span>); } </span><span>/*</span><span>* * 删除文件 * * @param string $aimUrl * @return boolean </span><span>*/</span><span>function</span> unlinkFile(<span>$aimUrl</span><span>) { </span><span>if</span> (<span>file_exists</span>(<span>$aimUrl</span><span>)) { </span><span>unlink</span>(<span>$aimUrl</span><span>); </span><span>return</span><span>true</span><span>; } </span><span>else</span><span> { </span><span>return</span><span>false</span><span>; } } </span><span>/*</span><span>* * 复制文件夹 * * @param string $oldDir * @param string $aimDir * @param boolean $overWrite 该参数控制是否覆盖原文件 * @return boolean </span><span>*/</span><span>function</span> copyDir(<span>$oldDir</span>, <span>$aimDir</span>, <span>$overWrite</span> = <span>false</span><span>) { </span><span>$aimDir</span> = <span>str_replace</span>('', '/', <span>$aimDir</span><span>); </span><span>$aimDir</span> = <span>substr</span>(<span>$aimDir</span>, -1) == '/' ? <span>$aimDir</span> : <span>$aimDir</span> . '/'<span>; </span><span>$oldDir</span> = <span>str_replace</span>('', '/', <span>$oldDir</span><span>); </span><span>$oldDir</span> = <span>substr</span>(<span>$oldDir</span>, -1) == '/' ? <span>$oldDir</span> : <span>$oldDir</span> . '/'<span>; </span><span>if</span> (!<span>is_dir</span>(<span>$oldDir</span><span>)) { </span><span>return</span><span>false</span><span>; } </span><span>if</span> (!<span>file_exists</span>(<span>$aimDir</span><span>)) { FileUtil </span>:: createDir(<span>$aimDir</span><span>); } </span><span>$dirHandle</span> = <span>opendir</span>(<span>$oldDir</span><span>); </span><span>while</span> (<span>false</span> !== (<span>$file</span> = <span>readdir</span>(<span>$dirHandle</span><span>))) { </span><span>if</span> (<span>$file</span> == '.' || <span>$file</span> == '..'<span>) { </span><span>continue</span><span>; } </span><span>if</span> (!<span>is_dir</span>(<span>$oldDir</span> . <span>$file</span><span>)) { FileUtil </span>:: copyFile(<span>$oldDir</span> . <span>$file</span>, <span>$aimDir</span> . <span>$file</span>, <span>$overWrite</span><span>); } </span><span>else</span><span> { FileUtil </span>:: copyDir(<span>$oldDir</span> . <span>$file</span>, <span>$aimDir</span> . <span>$file</span>, <span>$overWrite</span><span>); } } </span><span>return</span><span>closedir</span>(<span>$dirHandle</span><span>); } </span><span>/*</span><span>* * 复制文件 * * @param string $fileUrl * @param string $aimUrl * @param boolean $overWrite 该参数控制是否覆盖原文件 * @return boolean </span><span>*/</span><span>function</span> copyFile(<span>$fileUrl</span>, <span>$aimUrl</span>, <span>$overWrite</span> = <span>false</span><span>) { </span><span>if</span> (!<span>file_exists</span>(<span>$fileUrl</span><span>)) { </span><span>return</span><span>false</span><span>; } </span><span>if</span> (<span>file_exists</span>(<span>$aimUrl</span>) && <span>$overWrite</span> == <span>false</span><span>) { </span><span>return</span><span>false</span><span>; } </span><span>elseif</span> (<span>file_exists</span>(<span>$aimUrl</span>) && <span>$overWrite</span> == <span>true</span><span>) { FileUtil </span>:: unlinkFile(<span>$aimUrl</span><span>); } </span><span>$aimDir</span> = <span>dirname</span>(<span>$aimUrl</span><span>); FileUtil </span>:: createDir(<span>$aimDir</span><span>); </span><span>copy</span>(<span>$fileUrl</span>, <span>$aimUrl</span><span>); </span><span>return</span><span>true</span><span>; } } </span>?>
<span>$fu</span> = <span>new</span><span> FileUtil(); </span><span>$fu</span>->copyFile('a/1/2/3', 'a/1/2/4');另一種調用方式: 推薦一個自己業餘時間開發的網盤搜尋引擎,360盤搜索(www.360panso.com) 以上就介紹了顯示所有檔案和資料夾 php檔案及資料夾操作(建立、刪除、移動、複製),包括了顯示所有檔案和資料夾方面的內容,希望對PHP教學有興趣的朋友有所幫助。

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在PHP中調試會話問題的方法包括:1.檢查會話是否正確啟動;2.驗證會話ID的傳遞;3.檢查會話數據的存儲和讀取;4.查看服務器配置。通過輸出會話ID和數據、查看會話文件內容等方法,可以有效診斷和解決會話相關的問題。

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在PHP中配置會話生命週期可以通過設置session.gc_maxlifetime和session.cookie_lifetime來實現。 1)session.gc_maxlifetime控制服務器端會話數據的存活時間,2)session.cookie_lifetime控制客戶端cookie的生命週期,設置為0時cookie在瀏覽器關閉時過期。

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SessionID是網絡應用程序中用來跟踪用戶會話狀態的機制。 1.它是一個隨機生成的字符串,用於在用戶與服務器之間的多次交互中保持用戶的身份信息。 2.服務器生成並通過cookie或URL參數發送給客戶端,幫助在用戶的多次請求中識別和關聯這些請求。 3.生成通常使用隨機算法保證唯一性和不可預測性。 4.在實際開發中,可以使用內存數據庫如Redis來存儲session數據,提升性能和安全性。

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