下面有一个数组:
Array
(
[0] => Array
(
[id] => 1
[name] => Electronics
[parent] => 0
[description] => Large amount of electronics in our store
[columns] => 6
[products] => 5
[subcat] => Array
(
[0] => Array
(
[id] => 7
[name] => Moble phones
[parent] => 1
[description] =>
[columns] => 0
[products] => 5
[subcat] => Array
(
)
)
[1] => Array
(
[id] => 16
[name] => Computers
[parent] => 1
[description] =>
[columns] => 0
[products] => 0
[subcat] => Array
(
[0] => Array
(
[id] => 37
[name] => Desktops
[parent] => 16
[description] =>
[columns] => 0
[products] => 0
[subcat] => Array
(
)
)
[1] => Array
(
[id] => 17
[name] => Car Electronics
[parent] => 16
[description] =>
[columns] => 0
[products] => 0
[subcat] => Array
(
[0] => Array
(
[id] => 43
[name] => GPS & Navigation
[parent] => 17
[description] =>
[columns] => 0
[products] => 0
[subcat] => Array
(
)
)
)
)
)
)
[2] => Array
(
[id] => 18
[name] => TV & Video
[parent] => 1
[description] =>
[columns] => 0
[products] => 2
[subcat] => Array
(
[0] => Array
(
[id] => 48
[name] => LED TVs
[parent] => 18
[description] =>
[columns] => 0
[products] => 2
[subcat] => Array
(
)
)
[1] => Array
(
[id] => 49
[name] => Plasma TVs
[parent] => 18
[description] =>
[columns] => 0
[products] => 0
[subcat] => Array
(
)
)
)
)
)
)
[1] => Array
(
[id] => 14
[name] => Video Games
[parent] => 0
[description] =>
[columns] => 0
[products] => 0
[subcat] => Array
(
[0] => Array
(
[id] => 30
[name] => Nintendo Wii
[parent] => 14
[description] =>
[columns] => 0
[products] => 0
[subcat] => Array
(
)
)
)
)
)
我有一个 php 递归函数来将这个数组转换成 html 菜单:
private function buildNavHTML($nav, $tabs = "") {
$html = !strlen($tabs) ?
$tabs.'<ul class="navs">' :
$tabs.'<ul>';
foreach($nav as $page) {
$html .= $tabs." ".'<li>';
(isset($page['subcategories'][0])) ?
$html .= '<a class="subcat" href="cat?cid='.$page['id'].'">'.$page['name'].'</a>' :
$html .= '<a href="cat?cid='.$page['id'].'">'.$page['name'].'</a>';
if(isset($page['subcat'][0])) {
$html .= self::buildNavHTML($page['subcat'], $tabs." ");
}
$html .= '</li>';
}
$html .= $tabs.'</ul>';
return $html;
}
这个函数将输出 HTML 树:
<ul class="navs">
<li class="">
<a class="shop_subcat" href="cat?cid=1">Electronics</a>
<ul>
<li>
<a href="cat?cid=7">Moble phones</a>
</li>
<li>
<a class="shop_subcat" href="cat?cid=16">Computers</a>
<ul>
<li>
<a href="cat?cid=37">Desktops</a>
</li>
<li>
<a class="shop_subcat" href="cat?cid=17">Car Electronics</a>
<ul>
<li>
<a href="cat?cid=43">GPS & Navigation</a>
</li>
</ul>
</li>
</ul>
</li>
<li>
<a class="shop_subcat" href="cat?cid=18">TV & Video</a>
<ul>
<li>
<a href="cat?cid=48">LED TVs</a>
</li>
<li>
<a href="cat?cid=49">Plasma TVs</a>
</li>
</ul>
</li>
</ul>
</li>
<li class="">
<a class="shop_subcat" href="cat?cid=14">Video Games</a>
<ul>
<li>
<a href="cat?cid=30">Nintendo Wii</a>
</li>
</ul>
</li>
</ul>
但我需要得到类似的东西:_http://vasterad.com/plugins/responsive_css3_mega_menu/#
按列分隔，因为我的数据库中有一个列字段。如何修复我的递归函数？ 谢谢!
最佳答案
1.首先你应该在你的页面中添加这个CSS:
<style>
@import url("icons.css"); .menu{display:block;position:relative}.menu,.menu ul{margin:0;padding:0;list-style:none;position:relative}.menu ul a{float:left}.menu ul ul a{float:none}.menu .mega-menu a{float:none;padding:0}.menu ul ul,.menu .mega-menu,.menu .mega-menu ol li{opacity:0;visibility:hidden;display:none ! important/9;-webkit-transition:opacity 150ms ease-in-out;-moz-transition:opacity 150ms ease-in-out;-o-transition:opacity 150ms ease-in-out;-ms-transition:opacity 150ms ease-in-out;transition:opacity 150ms ease-in-out}.menu li:hover>ul,.menu li:hover>.mega-menu,.menu li:hover>.mega-menu ol li{opacity:1;visibility:visible;display:block ! important/9}.menu ul:after{content:"";clear:both;display:block}.menu ul li{float:left;-webkit-transition:all 150ms ease-in-out;-moz-transition:all 150ms ease-in-out;-o-transition:all 150ms ease-in-out;-ms-transition:all 150ms ease-in-out;transition:all 150ms ease-in-out}.menu ul li a{display:block;padding:14px 20px 15px 20px;color:#fff;font-weight:700;text-decoration:none}.menu .arrow:after{content:"";float:right;text-align:right;width:0;height:0;display:block;border-left:3px solid rgba(0,0,0,0);border-right:3px solid rgba(0,0,0,0);border-top:3px solid #fff;top:9px;margin:0 0 0 5px;position:relative;border-left:3px solid transparent/9;border-right:3px solid transparent/9}.menu ul li ul li .arrow:after{border-top:3px solid transparent;border-bottom:3px solid transparent;border-left:3px solid #bbb;margin:-2px 0 0 5px}.menu i{font-size:14px;font-weight:400;font-style:normal;float:left;margin:4px 4px 0 -2px;line-height:14px;padding:0}.menu .right{float:right}.menu .right ul,.menu .right .mega-menu{right:0}.menu ul ul{background:#fff;border:1px solid #e0e0e0;border-top:0;border-bottom:0;position:absolute;top:100%;width:170px;-webkit-box-shadow:0 1px 1px rgba(0,0,0,.04);box-shadow:0 1px 1px rgba(0,0,0,.04)}.menu ul ul ul{position:absolute;left:100%;border-top:1px solid #e0e0e0;top:-1px}.menu ul ul li a{font-weight:400;padding:8px 12px;color:#777;border-bottom:1px solid #e4e4e4}.menu ul ul li{float:none;position:relative;-webkit-transition:none;-moz-transition:none;-o-transition:none;-ms-transition:none;transition:none}.menu ul ul li a:active,.menu ul ul li:hover{background:#f5f5f5!important}.menu ul ul li{background:#fff!important}.mega-menu{position:absolute;top:100%;padding:18px 11px;background-color:#fff;border:1px solid #e0e0e0;border-top:none;color:#777;-webkit-box-shadow:0 1px 1px rgba(0,0,0,.04);box-shadow:0 1px 1px rgba(0,0,0,.04);-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box}.mega-menu ol{list-style:none;padding:0}.mega-menu ol li{width:100%}.mega-menu ol li:hover,.mega-menu ol li a{color:#777;font-size:12px;padding:0;font-weight:400;background-color:#fff;background-image:none}.mega-menu ol li a:hover{color:#505050}.mega-menu div h4{font-size:14px;font-weight:700;color:#404040;border-bottom:1px solid #e4e4e4;padding:0 0 8px 0;margin:0 0 10px 0}.mega-menu .col-1{width:135px}.mega-menu .col-2{width:288px}.mega-menu .col-3{width:441px}.mega-menu .col-4{width:594px}.mega-menu .col-5{width:747px}.mega-menu .col-6{width:900px}.mega-menu .col-1,.mega-menu .col-2,.mega-menu .col-3,.mega-menu .col-4,.mega-menu .col-5,.mega-menu .col-6{float:left;margin:0 9px}.mega-menu.full-width{left:0;width:100%;padding:18px 0}.full-width .col-1{width:14.1%}.full-width .col-2{width:30.4%}.full-width .col-3{width:46.7%}.full-width .col-4{width:63%}.full-width .col-5{width:79.3%}.full-width .col-6{width:95.6%}.full-width .col-1,.full-width .col-2,.full-width .col-3,.full-width .col-4,.full-width .col-5,.full-width .col-6{float:left;margin:0 0 0 2.2%}@media only screen and (max-width: 767px){.menu ul li{width:100%;cursor:pointer}.menu ul li{position:relative}.menu .mega-menu ol li{height:0}.menu li:hover>.mega-menu ol li{height:auto}.mega-menu,.menu ul ul{z-index:100}.menu ul ul{width:100%;-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box}.menu ul ul ul{left:0}.menu ul ul li:hover>ul{position:relative;border:none;border-top:1px solid #e4e4e4;-webkit-box-shadow:none;box-shadow:none}.menu ul li ul li .arrow:after{border-left:3px solid transparent;border-right:3px solid transparent;border-top:3px solid #bbb;margin:0}.mega-menu{padding:18px 0}.mega-menu ol li:last-child{margin:0 0 20px 0}.menu .col-1,.full-width .col-1,.menu .col-2,.full-width .col-2,.menu .col-3,.full-width .col-3,.menu .col-4,.full-width .col-4,.menu .col-5,.full-width .col-5,.menu .col-6,.full-width .col-6{float:left;margin:0 0 0 5%;width:90%}} .style-1.menu, .style-1.menu ul li { background-color: #2b2a28; background-image: linear-gradient(bottom, rgba(0,0,0, 0) 50%, rgba(255,255,255, 0.04) 0%); background-image: -o-linear-gradient(bottom, rgba(0,0,0, 0) 50%, rgba(255,255,255, 0.04) 0%); background-image: -moz-linear-gradient(bottom, rgba(0,0,0, 0) 50%, rgba(255,255,255, 0.04) 0%); background-image: -webkit-linear-gradient(bottom, rgba(0,0,0, 0) 50%, rgba(255,255,255, 0.04) 0%); background-image: -ms-linear-gradient(bottom, rgba(0,0,0, 0) 50%, rgba(255,255,255, 0.04) 0%); } .style-1.menu ul li:hover { background-color: #eb4e01; background-image: linear-gradient(bottom, rgba(0,0,0, 0) 50%, rgba(255,255,255, 0.08) 0%); background-image: -o-linear-gradient(bottom, rgba(0,0,0, 0) 50%, rgba(255,255,255, 0.08) 0%); background-image: -moz-linear-gradient(bottom, rgba(0,0,0, 0) 50%, rgba(255,255,255, 0.08) 0%); background-image: -webkit-linear-gradient(bottom, rgba(0,0,0, 0) 50%, rgba(255,255,255, 0.08) 0%); background-image: -ms-linear-gradient(bottom, rgba(0,0,0, 0) 50%, rgba(255,255,255, 0.08) 0%); }
</style>
你应该让你的函数有这个输出:
<div class="container">
<div class="menu style-1">
<ul class="menu">
<!--head of your tabs-->
<li>
<a class="arrow" href="#">
<i class="icon-folder-open"></i>
Electronics
</a>
<!--subtabs of your head tabs-->
<ul>
<li>
<a href="#">Moble phones</a>
</li>
</ul>
</li>
</ul>
注意:你应该了解更多关于css的知识http://www.w3schools.com/css/ 最好的问候
关于php - 从邻接表生成 megamenu，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/20473513/