php练习06

<?php
/**
 * Created by PhpStorm.
 * User: Administrator
 * Date: 2022/4/20/020
 * Time: 13:38
 */
//数组
//直接赋值创建数组
echo"<pre>";
$sanguo=[['name'=>'liubei','yuwen'=>89,'shuxue'=>67],
    ['name'=>'gaunyu','yuwen'=>45,'shuxue'=>22],
    ['name'=>'zhangfei','yuwen'=>72,'shuxue'=>85],
    ['name'=>'caocao','yuwen'=>80,'shuxue'=>66],
];
print_r($sanguo);
echo"<br>";
echo"<br>";
echo"<br>";
echo"<br>";
echo"<br>";
echo"<br>";
//2.用函数创建数组  新课
$sanguo = array('liubei','guanyu','zhangfei');
print_r($sanguo);
$shuihu=array(array('id'=>'01','name'=>'songjiang'),array('id'=>02));
print_r($shuihu);
$xiyou = array('sunwukong','master'=>'tangsheng','zhubajie','shasen');
print_r($xiyou);
echo rand(1000,9999);
echo"<br>";
echo"<br>";
echo"<br>";
echo"<br>";
echo"<br>";
//3.用range函数创建数组
$a=range('A','Z',5);
print_r($a);
$b=range(5,10);
print_r($b);
$v=($v);
echo"<br>";
echo"<br>";
echo"<br>";
echo"<br>";
echo"<br>";
//4.数组元素的追加    array_unshift() 追加的元素在数组开头
$city = array('henan'=>'zhengzhou','nanjing','hubei'=>'wuhan','changsha');
print_r($city);
$n=array_unshift($city,'guangzhou','chengdu');
var_dump($city,$n);
echo"<br>";
echo"<br>";
echo"<br>";
echo"<br>";
//5.数组元素的追加   追加的元素在数组后面  array push()
//$city = array('henan'=>'zhengzhou','nanjing','hubei'=>'wuhan','changsha');)
//print_r($city);
//$n=array_unshift($city,'guangzhou','chengdu');
//var_dump($city,$n);