哎我只是在此刻建立一個小PHP腳本列出目錄內的文件夾和文件(不擔心安全或驗證 - 我使用),但出於某種原因 - 它似乎移動到之前掃描的基本目錄兩次下一個。我曾試過各種方法來解決它,但似乎沒有任何工作,你能幫助我嗎?爲什麼這個php文件夾列表腳本重複自己兩次?
代碼:
function getall() {
$base = scandir('files/');
echo "<select>";
foreach ($base as $x) { // main loop start
if (strlen($x) > 3) {
$x = str_replace(".","",$x);
echo "<option class='folder' value='/" . $x . "/'>" . $x ."</option>\n"; // display item as option select
}
$folders = scandir('files/' . $x . '/'); // scan next folder
foreach ($folders as $y) { // get files in folder
if (strlen($y) > 3) {
$y = str_replace("..","",$y);
echo "<option class='file' value='./". $x ."/" . $y . "'>" . $y . "</option>\n"; // display item as option select
}
}
}
echo "</select>";
}
輸出爲:
<select>
<option class='file' value='./Class'>Class</option>
<option class='file' value='./Conditionals'>Conditionals</option>
<option class='file' value='./DateTime'>DateTime</option>
<option class='file' value='./File'>File</option>
<option class='file' value='./Folder'>Folder</option>
<option class='file' value='./Functions'>Functions</option>
<option class='file' value='./Loops'>Loops</option>
<option class='file' value='./MySQL'>MySQL</option>
<option class='file' value='./Security'>Security</option>
<option class='file' value='./String'>String</option>
<option class='file' value='../files'>files</option>
<option class='file' value='../files.php'>files.php</option>
<option class='file' value='../index.php'>index.php</option>
<option class='folder' value='/Class/'>Class</option>
<option class='file' value='Class/createclass.txt'>createclass.txt</option>
<option class='folder' value='/Conditionals/'>Conditionals</option>
<option class='file' value='Conditionals/if.txt'>if.txt</option>
<option class='file' value='Conditionals/ifelse.txt'>ifelse.txt</option>
<option class='file' value='Conditionals/ifelseif.txt'>ifelseif.txt</option>
<option class='file' value='Conditionals/switch.txt'>switch.txt</option>
<option class='folder' value='/DateTime/'>DateTime</option>
<option class='file' value='DateTime/date.txt'>date.txt</option>
<option class='file' value='DateTime/time.txt'>time.txt</option>
<option class='folder' value='/File/'>File</option>
...等等,但你可以看到,頂部目錄掃描兩次。
有關縮進對不起,我希望你能讀它仍然笑 – user2475055
普羅蒂普:使用更具描述性的變量名:'$ file'而不是'$ x'讀取方便很多。 –
你永遠不會檢查文件是文件夾還是文件。 –