PHP目錄

Question

有人可以請xplain此代碼。我讀larry ullmans書上的PHP和我沒有得到這部分。提前致謝！！

$search_dir = '.'; 
$contents = scandir($search_dir); 

    print '<h2>Directories</h2> 
    <ul>'; 
    foreach ($contents as $item) { 
    if ((is_dir($search_dir . '/' . $item)) AND (substr($item, 0, 1) != '.')) { 
    print "<li>$item</li>\n"; 
    } 
    } 
print '</ul>'; 

Answer 1

我會重新發布與評論你的代碼exaplain每一行做什麼。

$search_dir = '.'; //Set the directory to search. "." means the current one. 
$contents = scandir($search_dir); //scan the directory and return its results into $contents 

print '<h2>Directories</h2> 
    <ul>'; 
foreach($contents as $item) { //Iterate through the array and for each item... 
    //If the item is a directory  AND it doesn't start with a . (which means the current one)... 
    if ((is_dir($search_dir.'/'.$item)) AND(substr($item, 0, 1) != '.')) { 
     print "<li>$item</li>\n"; //Print it 
    } 
} 
print '</ul>'; 

總之，它打印出的目錄的輸出腳本運行的目錄中。

Answer 2

它顯示你所有的目錄列表，在當前目錄