<?php
//phpinfo();
header("content-type:text/html;charset=utf8");
//测试数据
$cate = array(
array('id' => 1, 'pid' => 0, 'name' => '一级11' ),
array('id' => 11, 'pid' => 0, 'name' => '一级12' ),
array('id' => 2, 'pid' => 1, 'name' => '二级21' ),
array('id' => 10, 'pid' => 11, 'name' => '二级22' ),
array('id' => 3, 'pid' => 1, 'name' => '二级23' ),
array('id' => 12, 'pid' => 11, 'name' => '二级24' ),
array('id' => 9, 'pid' => 1, 'name' => '二级25' ),
array('id' => 14, 'pid' => 1, 'name' => '二级26' ),
array('id' => 4, 'pid' => 9, 'name' => '三级31' ),
array('id' => 6, 'pid' => 9, 'name' => '三级32' ),
array('id' => 7, 'pid' => 4, 'name' => '四级41' ),
array('id' => 8, 'pid' => 4, 'name' => '四级42' ),
array('id' => 5, 'pid' => 4, 'name' => '四级43' ),
array('id' => 13, 'pid' => 4, 'name' => '四级44' ),
array('id' => 15, 'pid' => 8, 'name' => '五级51' ),
array('id' => 16, 'pid' => 8, 'name' => '五级52' ),
array('id' => 17, 'pid' => 8, 'name' => '五级53' ),
array('id' => 18, 'pid' => 16, 'name' => '六级64' ),
);
//数据进行重新排序的类的实现
class test{
function tree($data,$pid=0,$level = 0){
$res=array();
foreach($data as $v){
if($v['pid']==$pid){
$v['level'] = $level;
$res[] = $v;
$res = array_merge($res,$this->tree($data,$v['id'],$level+1));
}
}
return $res;
}
}
$t=new test();
$res=$t->tree($cate);
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
</head>
<body>
<table width="100%" cellspacing="1" cellpadding="2" id="list-table">
<?php
//循环数据的层级
$fuhao=" ";
foreach($res as $value){
$ifuhao=str_repeat($fuhao, $value['level']);
echo "<tr><td>".$ifuhao.$value['name']."</td></tr>";
}
?>
</table>
</body>
</html>
获取数据 类似 1-4-8-9 这种格式
