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不递归如何遍历多维数组(维数不定)

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2016-06-23 13:26:46868browse

现有数组

$tree = array (		array (				'ID' => 1,				'PARENT' => 0,				'NAME' => '祖父',				'CHILD' => array (						array (								'ID' => 3,								'PARENT' => 1,								'NAME' => '叔伯' 						),						array (								'ID' => 4,								'PARENT' => 1,								'NAME' => '父亲',								'CHILD' => array (										array (												'ID' => 5,												'PARENT' => 4,												'NAME' => '儿子' 										) 								) 						) 				)				 		),				array (				'ID' => 2,				'PARENT' => 0,				'NAME' => '祖母' 		) );

欲达到效果的HTML代码
<ul>	<li>祖父		<ul>			<li>叔伯</li>			<li>父亲				<ul>					<li>儿子</li>				</ul>			</li>		</ul>	</li>	<li>祖母</li></ul>

不知道多维数组的具体维数,根据数据库得到的信息获得。

不使用递归,能实现这个效果吗


回复讨论(解决方案)

你是递归来的,当然应该递归去

$tree = array (        array (                'ID' => 1,                'PARENT' => 0,                'NAME' => '祖父',                'CHILD' => array (                        array (                                'ID' => 3,                                'PARENT' => 1,                                'NAME' => '叔伯'                         ),                        array (                                'ID' => 4,                                'PARENT' => 1,                                'NAME' => '父亲',                                'CHILD' => array (                                        array (                                                'ID' => 5,                                                'PARENT' => 4,                                                'NAME' => '儿子'                                         )                                 )                         )                 )                          ),               array (                'ID' => 2,                'PARENT' => 0,                'NAME' => '祖母'         ) );function 递归($ar, $deep=0) {  echo str_repeat("\t", $deep) . "<ul>\n";  foreach($ar as $item) {    echo str_repeat("\t", $deep + 1) . "<li>$item[NAME]";    if(isset($item['CHILD'])) {      echo "\n";      递归($item['CHILD'], $deep+2);    }    echo "</li>\n";  }  echo str_repeat("\t", $deep) . "</ul>\n";}递归($tree);

你是递归来的,当然应该递归去

$tree = array (        array (                'ID' => 1,                'PARENT' => 0,                'NAME' => '祖父',                'CHILD' => array (                        array (                                'ID' => 3,                                'PARENT' => 1,                                'NAME' => '叔伯'                         ),                        array (                                'ID' => 4,                                'PARENT' => 1,                                'NAME' => '父亲',                                'CHILD' => array (                                        array (                                                'ID' => 5,                                                'PARENT' => 4,                                                'NAME' => '儿子'                                         )                                 )                         )                 )                          ),               array (                'ID' => 2,                'PARENT' => 0,                'NAME' => '祖母'         ) );function 递归($ar, $deep=0) {  echo str_repeat("\t", $deep) . "<ul>\n";  foreach($ar as $item) {    echo str_repeat("\t", $deep + 1) . "<li>$item[NAME]";    if(isset($item['CHILD'])) {      echo "\n";      递归($item['CHILD'], $deep+2);    }    echo "</li>\n";  }  echo str_repeat("\t", $deep) . "</ul>\n";}递归($tree);


我这个不是通过递归获得的,是用你写的一篇文章中的方法 http://bbs.csdn.net/topics/370094009
数据原型为
$data = array(  array('ID'=>1, 'PARENT'=>0, 'NAME'=>'祖父'),  array('ID'=>2, 'PARENT'=>1, 'NAME'=>'父亲'),  array('ID'=>3, 'PARENT'=>1, 'NAME'=>'叔伯'),  array('ID'=>4, 'PARENT'=>2, 'NAME'=>'自己'),  array('ID'=>5, 'PARENT'=>4, 'NAME'=>'儿子'),);

不递归能演变成我欲达到的HTML代码的效果吗
<ul>    <li>祖父        <ul>            <li>叔伯</li>            <li>父亲                <ul>                    <li>儿子</li>                </ul>            </li>        </ul>    </li>    <li>祖母</li></ul>
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