通过一下代码，总结php文件函数
// current directoryecho getcwd() . "\n";chdir('hhh');// current directoryecho getcwd() . "\n";D:\xampp\htdocs\my\function
D:\xampp\htdocs\my\function\hhh
$dir = 'D:\xampp\htdocs\my\function';// Open a known directory, read directory into variable and then closeif (is_dir($dir)) { if ($dh = opendir($dir)) { $ds = array(); while ($directory = readdir($dh)) { $ds[] = $directory; } rewinddir($dh); while ($directory = readdir($dh)) { $ds[] = $directory; } closedir($dh); }}print_r($ds);Array ( [0] => . [1] => .. [2] => file.php [3] => hhh [4] => . [5] => .. [6] => file.php [7] => hhh )
$dir = 'D:\xampp\htdocs\my\function';showfiles3($dir);function showfiles1($dir){ if (is_dir($dir)) { echo "<ul>"; $dh = opendir($dir); while ($file = readdir($dh)) { if (is_dir($dir.DIRECTORY_SEPARATOR.$file)) { if ($file !='.' && $file != '..') { echo "<li>"; echo "|-".$file; showfiles1($dir.DIRECTORY_SEPARATOR.$file); echo "</li>"; } } else{ echo "<li>"; echo "--".$file; echo "</li>"; } } closedir($dh); echo "</ul>"; }}function showfiles2($dir){ echo "<ul>"; $arr = scandir($dir); foreach ($arr as $file) { if (is_dir($dir.DIRECTORY_SEPARATOR.$file)) { if ($file !='.' && $file != '..') { echo "<li>"; echo "|-".$file; showfiles2($dir.DIRECTORY_SEPARATOR.$file); echo "</li>"; } } else{ echo "<li>"; echo "--".$file; echo "</li>"; } } echo "</ul>";}function showfiles3($dir) { foreach (glob($dir.DIRECTORY_SEPARATOR.'*') as $f) { echo is_dir($f) ? showfiles3($f) : "$f<br />"; }}
$dir = 'D:\xampp\htdocs\my\function';$d = scandir($dir, 1);print_r($d);
Array ( [0] => hhh [1] => file.php [2] => .. [3] => . )
//目录的检索函数glob()//检索当前目录下所有"*.txt"的文件$files = glob("*.txt");//检索当前目录下所有以"t"开头的子目录$files = glob("t*",GLOB_ONLYDIR);//检索当前目录下所有以"d,t或p"开头的php文件$files = glob("{d,t,p}*.php",GLOB_BRACE);一点小疑问：.文件 和 ..文件的详细分析
