把课件新闻内容以数组的方式历遍 输出

<?php
$lists = [
    ['content' => '切实做好高风险岗位从业人员疫情防控。'],
    ['content' => '切实做好高风险岗位从业人员疫情防控。'],
    ['content' => '切实做好高风险岗位从业人员疫情防控。'],
    ['content' => '切实做好高风险岗位从业人员疫情防控。'],
    ['content' => '切实做好高风险岗位从业人员疫情防控。'],
    ['content' => '切实做好高风险岗位从业人员疫情防控。'],
    ['content' => '切实做好高风险岗位从业人员疫情防控。'],
    ['content' => '切实做好高风险岗位从业人员疫情防控。'],
    ['content' => '切实做好高风险岗位从业人员疫情防控。'],
    ['content' => '切实做好高风险岗位从业人员疫情防控。'],
    ['content' => '切实做好高风险岗位从业人员疫情防控。']
];
$list = '';
foreach ($lists as $k => $v) {
    extract($v);
    $list .= "<a href='' >{$content}</a><br> ";
}
echo $list;

PHP 的8种变量1. 字符串

$sting=’hello world’;

2. 整数

$num=98;

3.浮点数

$fot=12.21;

4.布尔值

$boo = ture;

5.数组

(1)索引数组

$arr = [1,2,3,4,5,6,7,8];

(2)关联数组

$arr = [‘id’=>1, ‘uname’=>’张三’，’psw’=>’123456’]

6. 对象

class obj = { public $name;
public $id;
public $psw;
function login(){};
}

7. 资源类型

$pdo = new PDO(‘mysql:host=localhost;dbname=phpcn22’, ‘root’, ‘root’);

8.null

$abc = null;

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