挥衡棘访千拟峰熄陌核纷灯伸
1.volist
D:\phpStudy\PHPTutorial\WWW\tp5\application\index\controller\Index.php:
<?php namespace app\index\controller; class Index extends \think\Controller { public function index() { $user = []; for ($key = 0; $key < 10; $key++) { $user[]=[ 'name'=>'萌面人'.$key."号", 'sex'=>$key ? "男":"女", 'age'=>rand(15,40), 'salary'=>rand(3200,6800) ]; } //注意:user是二维数组 return $this->view->fetch('',['user'=>$user]); } }
D:\phpStudy\PHPTutorial\WWW\tp5\application\index\view\index\index.html:
<table border="1" cellspacing="0" cellpadding="2" width="40%"align="center"> <caption style="font-size: 22px;font-weight: bold">员工信息表</caption> <tr style="background: lightskyblue"> <th>编号</th> <th>姓名</th> <th>性别</th> <th>年龄</th> <th>工资</th> </tr> <!--volist循环--> {volist name="user" id="vo"} <tr> <td>{$key}</td> <td>{$vo.name}</td> <td>{$vo.sex}</td> <td>{$vo.age}</td> <td>{$vo.salary}</td> </tr> {/volist} </table>
执行:
volist的$key属性,key是数组下标从0开始,自定义后从1开始
D:\phpStudy\PHPTutorial\WWW\tp5\application\index\view\index\index.html:
<table border="1" cellspacing="0" cellpadding="2" width="40%"align="center"> <caption style="font-size: 22px;font-weight: bold">员工信息表</caption> <tr style="background: lightskyblue"> <th>编号</th> <th>姓名</th> <th>性别</th> <th>年龄</th> <th>工资</th> </tr> <!--volist循环--> {volist name="user" id="vo" key="k"} <tr> <td>{$k}</td> <td>{$vo.name}</td> <td>{$vo.sex}</td> <td>{$vo.age}</td> <td>{$vo.salary}</td> </tr> {/volist} </table>
执行:
offset:索引 length :数量
从索引为2的数组下标开始输出,输出5条数据
D:\phpStudy\PHPTutorial\WWW\tp5\application\index\view\index\index.html:
<table border="1" cellspacing="0" cellpadding="2" width="40%"align="center"> <caption style="font-size: 22px;font-weight: bold">员工信息表</caption> <tr style="background: lightskyblue"> <th>编号</th> <th>姓名</th> <th>性别</th> <th>年龄</th> <th>工资</th> </tr> <!--volist循环--> {volist name="user" id="vo" key="k" offset="2" length="5"} <tr> <td>{$k}</td> <td>{$vo.name}</td> <td>{$vo.sex}</td> <td>{$vo.age}</td> <td>{$vo.salary}</td> </tr> {/volist} </table>
执行:
删除key属性,从原始数据查看偏移效果,确实是从索引为2开始输出的,输出了5条数据
<table border="1" cellspacing="0" cellpadding="2" width="40%"align="center"> <caption style="font-size: 22px;font-weight: bold">员工信息表</caption> <tr style="background: lightskyblue"> <th>编号</th> <th>姓名</th> <th>性别</th> <th>年龄</th> <th>工资</th> </tr> <!--volist循环--> {volist name="user" id="vo" offset="2" length="5"} <tr> <td>{$key}</td> <td>{$vo.name}</td> <td>{$vo.sex}</td> <td>{$vo.age}</td> <td>{$vo.salary}</td> </tr> {/volist} </table>
执行:
empty属性,表中没有数据时输出的内容
D:\phpStudy\PHPTutorial\WWW\tp5\application\index\view\index\index.html:
<table border="1" cellspacing="0" cellpadding="2" width="40%"align="center"> <caption style="font-size: 22px;font-weight: bold">员工信息表</caption> <tr style="background: lightskyblue"> <th>编号</th> <th>姓名</th> <th>性别</th> <th>年龄</th> <th>工资</th> </tr> <!--volist循环--> {volist name="user" id="vo" offset="2" length="5" empty="没有数据"} <tr> <td>{$key}</td> <td>{$vo.name}</td> <td>{$vo.sex}</td> <td>{$vo.age}</td> <td>{$vo.salary}</td> </tr> {/volist} </table>
修改数据,使其为空数组
D:\phpStudy\PHPTutorial\WWW\tp5\application\index\controller\Index.php:
<?php namespace app\index\controller; class Index extends \think\Controller { public function index() { $user = []; for ($key = 0; $key < 10; $key++) { $user[]=[ 'name'=>'萌面人'.$key."号", 'sex'=>$key ? "男":"女", 'age'=>rand(15,40), 'salary'=>rand(3200,6800) ]; } //注意:user是二维数组 return $this->view->fetch('',['user'=>[]]); } }
执行:
将控制器中将user变量值由空数组恢复为之前的值
foreach循环:
D:\phpStudy\PHPTutorial\WWW\tp5\application\index\controller\Index.php:
<?php namespace app\index\controller; class Index extends \think\Controller { public function index() { $user = []; for ($key = 0; $key < 10; $key++) { $user[]=[ 'name'=>'萌面人'.$key."号", 'sex'=>$key ? "男":"女", 'age'=>rand(15,40), 'salary'=>rand(3200,6800) ]; } //注意:user是二维数组 return $this->view->fetch('',['user'=>$user]); } }
D:\phpStudy\PHPTutorial\WWW\tp5\application\index\view\index\index.html:
<table border="1" cellspacing="0" cellpadding="2" width="40%"align="center"> <caption style="font-size: 22px;font-weight: bold">员工信息表</caption> <tr style="background: lightskyblue"> <th>编号</th> <th>姓名</th> <th>性别</th> <th>年龄</th> <th>工资</th> </tr> <!--foreach循环--> {foreach name="user" item="value"} <tr> <td>{$key}</td> <td>{$value.name}</td> <td>{$value.sex}</td> <td>{$value.age}</td> <td>{$value.salary}</td> </tr> {/foreach} </table>
执行:
for循环生成空表格
D:\phpStudy\PHPTutorial\WWW\tp5\application\index\view\index\index.html:
<table border="1" cellspacing="0" cellpadding="2" width="40%"align="center"> <caption style="font-size: 22px;font-weight: bold">员工信息表</caption> <tr style="background: lightskyblue"> <th>编号</th> <th>姓名</th> <th>性别</th> <th>年龄</th> <th>工资</th> </tr> <!--for循环--> <!--for循环与原生php中基本一致--> {for start='0' end='10' comparsion='lt' name='i' step='1'} <tr> {for start='0' end='5' comparsion='lt' name='j' step='1'} <td>{$j*5+$i}</td> {/for} </tr> {/for} </table>
执行:
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