Article directory
ThinkPHP6 view
- The template engine supports two kinds of tag definitions: ordinary tags and XML tags, which are used for different purposes
| label type | describe |
|---|---|
| normal label | Mainly used for output variables, function filtering and doing some basic operations |
| XML tags | Also known as tag library tags, it mainly completes some logical judgments, control and loop output, and can be expanded |
1. Operators (self-study)
| operator | example |
|---|---|
| + | { a + a+ a+b} |
| - | { a − a- a−b} |
| * | { a ∗ a* a∗b} |
| / | { a / a/ a/b} |
| % | { a a% ab} |
| ++ | { $ a++} or {++$a} |
| – | {$ a–} or {–$a} |
| Composite calculation | { a + a+ a+b*10+$c} |
| ternary operator | { a = = a== a==b ? ‘yes’ : ‘no’} |
controller file
public function index(){
View::assign('a',100);
View::assign('b',21);
return View::fetch();
}
<div>{$a+$b}</div>
<div>{$a-$b}</div>
<div>{$a*$b}</div>
<div>{$a/$b}</div>
<div>{$a%$b}</div>
<div>{$a++}</div>
<div>{++$a}</div>
<div>{$a--}</div>
<div>{--$a}</div>
<div>{$c ? '存在' : '不存在'}</div>
2. Template function (self-study)
| method | describe |
|---|---|
| date | Date formatting (supports various time types) |
| format | string formatting |
| upper | convert to uppercase |
| lower | convert to lowercase |
| first | output the first element of the array |
| last | output the last element of the array |
| default | Defaults |
| raw | No (default) escaping is used |
| md5 | md5 encryption |
| substr | intercept string |
- Multiple function calls are possible
controller file
public function index(){
View::assign('time',1576048640);
View::assign('num',10.0032);
View::assign('str','OUyangKE');
View::assign('arr',[
'雪碧',
'可口可乐',
'红酒 '
]);
return View::fetch();
}
view file
<div>{$time|date='Y-m-d H:i:s'}</div>
<div>{$num|format='%02d'}</div>
<div>{$str|upper}</div>
<div>{$str|lower}</div>
<div>{$arr|first}</div>
<div>{$arr|last}</div>
<div>{$default|default="cafe"}</div>
<div>{$str|substr=0,3}</div>
<div>{$str|md5}</div>
<div>{$str|lower|substr=0,3}</div>
3. Cycle label
- The usage of the foreach tag is very close to the PHP syntax, which is used to loop out the properties of arrays or objects
controller file
public function index(){
$arr = [
[
'id' => 1,
'name' => '可口可乐'
],
[
'id' => 2,
'name' => '叶大牛'
],
[
'id' => 3,
'name' => '官人快来'
]
];
View::assign('arr',$arr);
return View::fetch();
}
view file
{foreach $arr as $v}
<div>
<span>ID：{$v['id']}</span>
<span>姓名：{$v['name']}</span>
</div>
{/foreach}
4. volist cycle label
- The result output of the two-dimensional array
- name variable name template assignment
- id The current loop variable, you can name it at will
- key subscript, starting from 1, default variable i
- offset start line number
- length Get the number of rows
- empty If the data is empty, display this text
view file
{volist name="arr" id="v" key="k" offset="1" length="2"}
<div>
<span>ID：{$v['id']}</span>
<span>姓名：{$v['name']}</span>
<span>下标：{$k}</span>
</div>
{/volist}
Five, if judgment label
- The usage of the if tag is very close to the PHP syntax and is used for conditional judgment
controller file
public function index(){
View::assign('status',1);
View::assign('order_status',4);
return View::fetch();
}
view file
{if $status == 1}
<div>开启</div>
{/if}
{if $status == 0}
<div>关闭</div>
{else/}
<div>开启</div>
{/if}
{if $order_status == 0}
<div>未支付</div>
{elseif $order_status == 1/}
<div>已支付 待发货</div>
{elseif $order_status == 2/}
<div>已发货 待收货</div>
{elseif $order_status == 3/}
<div>已收货 待评论</div>
{elseif $order_status == 4/}
<div>已完成</div>
{/if}
6. Switch judgment label
- The usage of the switch tag is very close to the PHP syntax and is used for conditional judgment
view file
{switch $order_status}
{case 0 }<div>未支付</div>{/case}
{case 1 }<div>已支付 待发货</div>{/case}
{case 2 }<div>已发货 待收货</div>{/case}
{case 3 }<div>已收货 待评论</div>{/case}
{case 4 }<div>已完成</div>{/case}
{/switch}
7. Include files
- include tag, importing template files
- load tag, import resource files (css, js)
View file, the header and tail part of the file
{include file="public/header" /}
{include file="public/left" /}
{load href="/static/layui/css/layui.css" /}
{load href="/static/layui/layui.js" /}
{include file="public/tail" /}
8. Other labels (self-study)
1. Condition label
| Label | describe |
|---|---|
| in | Check if a variable has some value |
| swimming | Determine if a variable does not have some value |
| between | Check if a variable has some value |
| notbetween | Determine whether a variable does not have certain range values |
| present | Check if a variable is defined |
| notpresent | Check if a variable is undefined |
| empty | Check if a variable is empty |
| notempty | Check if a variable is not empty |
| defined | Check if a constant is defined |
| notdefined | Check if a constant is undefined |
public function index(){
View::assign('number',100);
View::assign('string','');
return View::fetch();
}
{
in name="number" value="99,100,101"}
number等于99，100，101任意一个值
{
/in}
{
notin name="number" value="99,100,101"}
number不等于99，100，101任意一个值
{
/notin}
{
between name="number" value="1,10"}
number等于1 到 10 之间的任意一个值
{
/between}
{
notbetween name="number" value="1,10"}
number不等于1 到 10 之间的任意一个值
{
/notbetween}
{
present name="number"}
number已经定义
{
/present}
{
notpresent name="n"}
n还没有定义
{
/notpresent}
{
empty name="string"}
name为空值
{
/empty}
{
notempty name="string"}
name有值
{
/notempty}
{
defined name="NAME"}
NAME常量已经定义
{
/defined}
{
notdefined name="NAME"}
NAME常量未定义
{
/notdefined}
- Conditional tags, you can add else tags
{
in name="number" value="99,100,101"}
number等于99，100，101任意一个值
{
else/}
number不等于99，100，101任意一个值
{
/in}
2. Compare labels
| Label | describe |
|---|---|
| eq | equal |
| neq | not equal to |
| gt | more than the |
| egt | greater or equal to |
| lt | less than |
| elt | less than or equal to |
| REMOVES | equal to |
| nheq | constant is not equal to |
public function index(){
View::assign("number",100);
View::assign("string","可口可乐");
return View::fetch();
}
{
eq name="number" value="100"}
number 等于 100
{
/eq}
{
neq name="number" value="101"}
number 不等于 101
{
/neq}
{
gt name="number" value="33"}
number 大于 33
{
/gt}
{
egt name="number" value="100"}
number 大于等于 100
{
/egt}
{
lt name="number" value="200"}
number 小于 200
{
/lt}
{
elt name="number" value="100"}
number 小于等于 100
{
/elt}
{
heq name="string" value="可口可乐"}
string 恒等于 可口可乐
{
/heq}
{
heq name="string" value="小老师"}
string 恒不等于 小老师
{
/heq}
3. Cycle label
| Label | describe |
|---|---|
| for | count loop |
- start: start value
- end: end value
- step: step value, default 1
- name: loop variable name, default i
{
for start="1" end="50" step="5" name="i"}
{
$i}<br/>
{
/for}
4. Miscellaneous tab
| Label | describe |
|---|---|
| literal | Output as-is, preventing template tags from being parsed |
| php | Using native php code, you can write any PHP statement code in the template file |
{literal}
{$name} 这里$name不会被当作变量，而是普通字符
{/literal}
{php}
echo '可口可乐搬代码';
{/php}
9. Examples
controller code
namespace app\controller;
use think\facade\View;
class Index{
public function index(){
$title = '商城';
$login = '欧阳克';
$left = [
[
'title' => '商品管理',
'lists' => [
[
'id' => 1,
'title' => '商品列表',
],
[
'id' => 2,
'title' => '商品分类',
]
]
],
[
'title' => '用户管理',
'lists' => [
[
'id' => 3,
'title' => '用户列表',
],
[
'id' => 4,
'title' => '购物车',
],
[
'id' => 5,
'title' => '用户地址',
],
[
'id' => 6,
'title' => '订单管理',
]
]
],
[
'title' => '后台管理',
'lists' => [
[
'id' => 7,
'title' => '管理员列表',
],
[
'id' => 8,
'title' => '个人中心',
],
[
'id' => 9,
'title' => '左侧菜单列',
]
]
]
];
$right = [
[
'id' => 1,
'title' => '熙世界2019秋冬新款长袖杏色上衣连帽宽松刺绣文艺落肩袖加厚卫衣BF风',
'cat' => '女装',
'price' => 189,
'discount' => 6,
'status' => 1,
// 'status' => '开启',
'add_time' => '2019-12-12',
// 'add_time' => '1576080000'
],
[
'id' => 2,
'title' => '秋水伊人双面呢冬装2019年新款女装气质西装领撞色羊毛大衣外套女',
'cat' => '女装',
'price' => 699,
'discount' => 7,
'status' => 1,
// 'status' => '开启',
'add_time' => '2019-12-12',
// 'add_time' => '1576080000'
],
[
'id' => 3,
'title' => '微弹中高腰直脚牛仔裤男',
'cat' => '男装',
'price' => 179,
'discount' => 8,
'status' => 0,
// 'status' => '开启',
'add_time' => '2019-12-12',
// 'add_time' => '1576080000'
],
[
'id' => 1,
'title' => '男士长袖t恤秋季圆领黑白体恤T 纯色上衣服打底衫',
'cat' => '男装',
'price' => 99,
'discount' => 9,
'status' => 1,
// 'status' => '开启',
'add_time' => '2019-12-12',
// 'add_time' => '1576080000'
],
];
View::assign([
'title' => $title,
'login' => $login,
'left' => $left,
'right' => $right
]);
return View::fetch();
}
}
View code: head.html
<!DOCTYPE html>
<html>
<head>
<title>{$title}--后台管理系统</title>
<link rel="stylesheet" type="text/css" href="/static/layui/css/layui.css">
<script type="text/javascript" src="/static/layui/layui.js"></script>
<style type="text/css">
.header{
width:100%;height: 50px;line-height: 50px;background: #2e6da4;color:#ffffff;}
.title{
margin-left: 20px;font-size: 20px;}
.userinfo{
float: right;margin-right: 10px;}
.userinfo a{
color:#ffffff;}
.menu{
width: 200px;background:#333744;position:absolute;}
.main{
position: absolute;left:200px;right:0px;}
.layui-collapse{
border: none;}
.layui-colla-item{
border-top:none;}
.layui-colla-title{
background:#42485b;color:#ffffff;}
.layui-colla-content{
border-top:none;padding:0px;}
.content span{
background: #009688;margin-left: 30px;padding: 10px;color:#ffffff;}
.content div{
border-bottom: solid 2px #009688;margin-top: 8px;}
.content button{
float: right;margin-top: -5px;}
</style>
</head>
<body>
<div class="header">
<span class="title"><span style="font-size: 20px;">{$title}</span>--后台管理系统</span>
<span class="userinfo">【{$login}】<span><a href="javascript:;">退出</a></span></span>
</div>
View code: left.html
<div class="menu" id="menu">
<div class="layui-collapse" lay-accordion>
{foreach $left as $k=>$left_v}
<div class="layui-colla-item">
<h2 class="layui-colla-title">{$left_v.title}</h2>
<div class="layui-colla-content {if $k==0}layui-show{/if}">
<ul class="layui-nav layui-nav-tree">
{foreach $left_v['lists'] as $lists_v}
<li class="layui-nav-item"><a href="index.html">{$lists_v.title}</a></li>
{/foreach}
</ul>
</div>
</div>
{/foreach}
</div>
</div>
View code: bottom.html
</body>
</html>
<script>
layui.use(['element','layer','laypage'], function(){
var element = layui.element;
var laypage = layui.laypage;
$ = layui.jquery;
layer = layui.layer;
resetMenuHeight();
});
// 重新设置菜单容器高度
function resetMenuHeight(){
var height = document.documentElement.clientHeight - 50;
$('#menu').height(height);
}
</script>
View code: index.html
{include file="public/head" /}
{include file="public/left" /}
<div class="main" style="padding:10px;">
<div class="content">
<span>商品列表</span>
<div></div>
</div>
<table class="layui-table">
<thead>
<tr>
<th>ID</th>
<th>商品标题</th>
<th>分类</th>
<th>原价</th>
<th>折扣</th>
<th>现价</th>
<th>库存</th>
<th>状态</th>
<th>添加时间</th>
</tr>
</thead>
<tbody>
{volist name="right" id="right_v"}
<tr>
<td>{$right_v.id}</td>
<td>{$right_v.title}</td>
<td>{$right_v.cat}</td>
<td>{$right_v.price}</td>
<td>{$right_v.discount}</td>
<td>
{if $right_v.discount!=0}
{$right_v.price*($right_v.discount/10)}
{else/}
{$right_v.price}
{/if}
</td>
<td>{$right_v.stock}</td>
<td>{if $right_v['status']==1}开启{else/}关闭{/if}</td>
<td>{$right_v.add_time|date='Y-m-d'}</td>
</tr>
{/volist}
</tbody>
</table>
</div>
{include file="public/bottom" /}