第8期0917作业数组联系

实例

<?php
header("Content-type: text/html; charset=utf-8");
// 定义数组
$a =[];
$b=array();
//关联数组
echo'<pre>';
$c =["name"=>"小虫子","sex"=>"男","age"=>12];
print_r($c);
echo '<hr>';
//索引数组
$d=["小虫子","男",18];
print_r($d);
echo '<hr>';
// 二位数组
$f= [["name"=>"小虫子","sex"=>"男","age"=>12],["name"=>"大虫子","sex"=>"男","age"=>15]];
print_r($f);
echo '<hr>';
// 循环二维数组
echo '<h1>循环二维数组</h1><br>';
foreach($f as $ff)
{
    foreach($ff as $fff)
    {
        print_r($fff);
        echo '<hr>';
    }
}
$f= [["name"=>"小虫子","sex"=>"男","age"=>12,"媳妇"=>["小花","小婷","小倩"]],["name"=>"大虫子","sex"=>"男","age"=>15,"媳妇"=>["小花","小婷","小倩"]]];
echo '<h1>循环三维数组</h1><br>';
foreach($f as $ff)
{
    echo "姓名:{$ff['name']} <br>";
    foreach($ff as $key=>$fff)
    {

        if($key=="媳妇")
        {
            foreach($fff as $key2=>$ffff)
            {
                $key3 = $key2+1;
                echo "<strong style=\"color:red;font-size:2rem;\">媳妇{$key3}:{$ffff} <br></strong>";
            }
        }
    }
    echo '<hr>';
}