php单链表实现代码分享

static public function show ($head)
{
$cur = $head;
while ($cur->next) {
echo $cur->next->id,'###',$cur->next->name,'
';
$cur = $cur->next;
}
echo '

//尾插法
static public function push ($head,$node)
{
$cur = $head;
while (NULL != $cur->next) {
$cur = $cur->next;
}
$cur->next = $node;
return $head;
}

static public function insert($head,$node)
{
$cur = $head;
while (NULL != $cur->next) {
if ($cur->next->id > $node->id) {
break;
}
$cur = $cur->next;
}
$node->next = $cur->next;
$cur->next = $node;
return $head;
}

static public function edit($head,$node)
{
$cur = $head;
while (NULL != $cur->next) {
if ($cur->next->id == $node->id) {
break;
}
$cur = $cur->next;
}
$cur->next->name = $node->name;
return $head;
}

static public function pop ($head,$node)
{
$cur = $head;
while (NULL != $cur->next) {
if ($cur->next == $node) {
break;
}
$cur = $cur->next;
}
$cur->next = $node->next;
return $head;
}
}

$team = new Demo();
$node1 = new Demo(1,'唐三藏');
Demo::push($team,$node1);
$node1->name = '唐僧';
Demo::show($team);

// Demo::show($team);
$node2 = new Demo(2,'孙悟空');
Demo::insert($team,$node2);
// Demo::show($team);
$node3 = new Demo(5,'白龙马');
Demo::push($team,$node3);
// Demo::show($team);
$node4 = new Demo(3,'猪八戒');
Demo::insert($team,$node4);
// Demo::show($team);
$node5 = new Demo(4,'沙和尚');
Demo::insert($team,$node5);
// Demo::show($team);
$node4->name = '猪悟能';//php对象传引用，所以Demo::edit没有必要
// unset($node4);
// $node4 = new Demo(3,'猪悟能');
// Demo::edit($team,$node4);
Demo::pop($team,$node1);

Demo::show($team);