php檔刪除unlink()詳解-php手册-PHP中文網

首頁

php教程

php手册

php檔刪除unlink()詳解

WBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWB

Oct 28, 2016 pm 03:03 PM

請記住從PHP文件建立的教訓，我們建立了一個文件，名稱為testFile.txt 。

<span style="color: #800080">$myFile</span> = "testFile.txt"<span style="color: #000000">;
</span><span style="color: #800080">$fh</span> = <span style="color: #008080">fopen</span>(<span style="color: #800080">$myFile</span>, 'w') or <span style="color: #0000ff">die</span>("can't open file"<span style="color: #000000">);
</span><span style="color: #008080">fclose</span>(<span style="color: #800080">$fh</span><span style="color: #000000">);
判断是否删除了</span>. http:<span style="color: #008000">//</span><span style="color: #008000">www.manongjc.com/article/1351.html</span>
<span style="color: #800080">$myFile</span> = "testFile.txt"<span style="color: #000000">;
</span><span style="color: #008080">unlink</span>(<span style="color: #800080">$myFile</span>);

例

<span style="color: #800080">$filename</span> = 'file.txt'<span style="color: #000000">;
</span><span style="color: #008080">fopen</span>(<span style="color: #800080">$filename</span>,'a+'<span style="color: #000000">);
</span><span style="color: #0000ff">if</span>(!<span style="color: #008080">unlink</span>(<span style="color: #800080">$filename</span><span style="color: #000000">))
{
</span><span style="color: #0000ff">echo</span> "文件{<span style="color: #800080">$filename</span>}删除失败"; <span style="color: #008000">//</span><span style="color: #008000">  http://www.manongjc.com/article/1351.html</span>
<span style="color: #000000">}
</span><span style="color: #0000ff">else</span><span style="color: #000000">
{
</span><span style="color: #0000ff">echo</span> "文件{<span style="color: #800080">$filename</span>}删除成功"<span style="color: #000000">;
}
</span>?>

刪除目錄下所有檔案

<span style="color: #0000ff">function</span> delFileUnderDir( <span style="color: #800080">$dirName</span>="../Smarty/templates/templates_c"<span style="color: #000000"> )
{
</span><span style="color: #008000">//</span><span style="color: #008000"> http://www.manongjc.com/article/1351.html</span>
<span style="color: #0000ff">if</span> ( <span style="color: #800080">$handle</span> = <span style="color: #008080">opendir</span>( "<span style="color: #800080">$dirName</span>"<span style="color: #000000"> ) ) {
   </span><span style="color: #0000ff">while</span> ( <span style="color: #0000ff">false</span> !== ( <span style="color: #800080">$item</span> = <span style="color: #008080">readdir</span>( <span style="color: #800080">$handle</span><span style="color: #000000"> ) ) ) {
   </span><span style="color: #0000ff">if</span> ( <span style="color: #800080">$item</span> != "." && <span style="color: #800080">$item</span> != ".."<span style="color: #000000"> ) {
   </span><span style="color: #0000ff">if</span> ( <span style="color: #008080">is_dir</span>( "<span style="color: #800080">$dirName</span>/<span style="color: #800080">$item</span>"<span style="color: #000000"> ) ) {
         delFileUnderDir( </span>"<span style="color: #800080">$dirName</span>/<span style="color: #800080">$item</span>"<span style="color: #000000"> );
   } </span><span style="color: #0000ff">else</span><span style="color: #000000"> {
   </span><span style="color: #0000ff">if</span>( <span style="color: #008080">unlink</span>( "<span style="color: #800080">$dirName</span>/<span style="color: #800080">$item</span>" ) )<span style="color: #0000ff">echo</span> "成功删除文件： <span style="color: #800080">$dirName</span>/<span style="color: #800080">$item</span><br>n"<span style="color: #000000">;
   }
   }
   }
   </span><span style="color: #008080">closedir</span>( <span style="color: #800080">$handle</span><span style="color: #000000"> );
}
}</span>

陳述

本文內容由網友自願投稿，版權歸原作者所有。本站不承擔相應的法律責任。如發現涉嫌抄襲或侵權的內容，請聯絡admin@php.cn

熱AI工具

熱工具

mPDF是一個PHP庫，可以從UTF-8編碼的HTML產生PDF檔案。原作者Ian Back編寫mPDF以從他的網站上「即時」輸出PDF文件，並處理不同的語言。與原始腳本如HTML2FPDF相比，它的速度較慢，並且在使用Unicode字體時產生的檔案較大，但支援CSS樣式等，並進行了大量增強。支援幾乎所有語言，包括RTL（阿拉伯語和希伯來語）和CJK（中日韓）。支援嵌套的區塊級元素（如P、DIV），