递归函数以获取所有子类别

我很难弄清楚你的职能。我认为这会做您想要的。它获取ID为$ id的类别的所有子项，以及它们的子项（从而获得所需的整个子类别，子子类别效果）。

function categoryChild($id) {    $s = "SELECt ID FROM PLD_CATEGORY WHERe PARENT_ID = $id";    $r = mysql_query($s);    $children = array();    if(mysql_num_rows($r) > 0) {        # It has children, let's get them.        while($row = mysql_fetch_array($r)) { # Add the child to the list of children, and get its subchildren $children[$row['ID']] = categoryChild($row['ID']);        }    }    return $children;}

该函数将返回：

$var = array(        'categoryChild ID' => array(     'subcategoryChild ID' => array(  'subcategoryChild child 1' => array(),  'subcategoryChild child 2' => array()     )        ),        'anotherCategoryChild ID' => array() # This child has no children of its own);

它基本上返回一个具有子代ID的数组和一个包含其子代ID的数组。希望对您有所帮助。