// 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 ; $dh = opendir($dir); while ($file = readdir($dh)) { if (is_dir($dir.directory_separator.$file)) { if ($file !='.' && $file != '..') { echo ; echo |-.$file; showfiles1($dir.directory_separator.$file); echo ; } } else{ echo ; echo --.$file; echo ; } } closedir($dh); echo ; }}function showfiles2($dir){ echo ; $arr = scandir($dir); foreach ($arr as $file) { if (is_dir($dir.directory_separator.$file)) { if ($file !='.' && $file != '..') { echo ; echo |-.$file; showfiles2($dir.directory_separator.$file); echo ; } } else{ echo ; echo --.$file; echo ; } } echo ;}function showfiles3($dir) { foreach (glob($dir.directory_separator.'*') as $f) { echo is_dir($f) ? showfiles3($f) : $f
; }}
$dir = 'd:\xampp\htdocs\my\function';$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