开启Chrome自带的多线程下载功能
- 打开 Chrome 浏览器，国产 Chrome 内核的浏览器通通适用，包括前段时间推送的新版 Edge 也可以
- 在地址栏输入 chrome://flags/#enable-parallel-downloading
- 打开后如下图模式
- 选择“Enable”，出现"Relaunch"(重启浏览器)，点击它
- 重启后就开启了多线程下载功能，接下来咱们再来看看之前文件的下载速度。
laravel获取路由的两种方式
$routes = app()->router->getRoutes();
//第一种
foreach ($routes as $k => $value) {
if($value->action['namespace'] == 'App\Http\Controllers\Api') {
$path[$k]['uri'] = $value->uri;
$path[$k]['path'] = $value->methods[0];
}
}
dump($path);
//第二种
$data = [];
$routes = collect($routes)->map(function ($route) use ($data) {
if($route->action['namespace'] == 'App\Http\Controllers\Api') {
$data['uri'] = $route->uri;
$data['path'] = $route->methods[0];
}
return $data;
})->filter()->all();
dump($routes);根据分类实现无限级
数组
$array = [
[
"username"=>"xiaxian2",
"headimg"=>"/Templates/home/res/face/3.png",
"money"=>"99500.00",
"yongjin"=>"0.00",
"yongjingai"=>"0",
"jiesuan"=>"0.00",
"agent"=>"8e5d35bf1414296e03c7846ebab7af6e",
"userid"=>"09b42ce90879719a67f050b431b03534",
"zongliushui"=>"500",
"zongyinkui"=>null
],
[
"username"=>"erjixiaxian2",
"headimg"=>"/Templates/home/res/face/3.png",
"money"=>"99400.00",
"yongjin"=>"0.00",
"yongjingai"=>"0",
"jiesuan"=>"0.00",
"agent"=>"e89c3cb72cc95e2e7014d3d07b97beb2",
"userid"=>"2a1ab4890db2142c6c0bb51ef77994fb",
"zongliushui"=>"600",
"zongyinkui"=>null
],
[
"username"=>"erjixiaxian",
"headimg"=>"/Templates/home/res/face/3.png",
"money"=>"100592.80",
"yongjin"=>"0.00",
"yongjingai"=>"0",
"jiesuan"=>"0.00",
"agent"=>"e89c3cb72cc95e2e7014d3d07b97beb2",
"userid"=>"6256d265dcc1e9cfca2c37c1093444cb",
"zongliushui"=>"600",
"zongyinkui"=>"592.8"
],
[
"username"=>"admin",
"headimg"=>"/Templates/home/res/face/2.png",
"money"=>"11038.83",
"yongjin"=>"1.50",
"yongjingai"=>"1",
"jiesuan"=>"7.50",
"agent"=>"7d9e993765d4f79748ec54cbed9a996e",
"userid"=>"8e5d35bf1414296e03c7846ebab7af6e",
"zongliushui"=>"5821",
"zongyinkui"=>"8351.548"
],
[
"username"=>"xiaxian1",
"headimg"=>"/Templates/home/res/face/3.png",
"money"=>"97494.00",
"yongjin"=>"0.00",
"yongjingai"=>"0",
"jiesuan"=>"0.00",
"agent"=>"8e5d35bf1414296e03c7846ebab7af6e",
"userid"=>"e89c3cb72cc95e2e7014d3d07b97beb2",
"zongliushui"=>"3500",
"zongyinkui"=>"-2006"
]
];
引用算法
//引用算法
function generateTree($array){
//第一步 构造数据
$items = array();
foreach($array as $value){
$items[$value['userid']] = $value;
}
//第二部 遍历数据 生成树状结构
$tree = array();
foreach($items as $key => $value){
if(isset($items[$value['agent']])){
$items[$value['agent']]['son'][] = &$items[$key];
}else{
$tree[] = &$items[$key];
}
}
return $tree;
}
$a = generateTree($array);
dd($a);
结果
[
{
"username": "admin",
"headimg": "/Templates/home/res/face/2.png",
"money": "11038.83",
"yongjin": "1.50",
"yongjingai": "1",
"jiesuan": "7.50",
"agent": "7d9e993765d4f79748ec54cbed9a996e",
"userid": "8e5d35bf1414296e03c7846ebab7af6e",
"zongliushui": "5821",
"zongyinkui": "8351.548",
"son": [
{
"username": "xiaxian2",
"headimg": "/Templates/home/res/face/3.png",
"money": "99500.00",
"yongjin": "0.00",
"yongjingai": "0",
"jiesuan": "0.00",
"agent": "8e5d35bf1414296e03c7846ebab7af6e",
"userid": "09b42ce90879719a67f050b431b03534",
"zongliushui": "500",
"zongyinkui": null
},
{
"username": "xiaxian1",
"headimg": "/Templates/home/res/face/3.png",
"money": "97494.00",
"yongjin": "0.00",
"yongjingai": "0",
"jiesuan": "0.00",
"agent": "8e5d35bf1414296e03c7846ebab7af6e",
"userid": "e89c3cb72cc95e2e7014d3d07b97beb2",
"zongliushui": "3500",
"zongyinkui": "-2006",
"son": [
Array(),
Array()
]
}
]
}
]
mysql 数据库关联多张表
表一：
CREATE TABLE `log_zz` (
`dt` datetime NOT NULL,
`info` varchar(100) NOT NULL,
KEY `dt` (`dt`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8;
表二：
CREATE TABLE `log_xx` (
`dt` datetime NOT NULL,
`info` varchar(100) NOT NULL,
KEY `dt` (`dt`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8;
表三：
CREATE TABLE `log_yy` (
`dt` datetime NOT NULL,
`info` varchar(100) NOT NULL,
KEY `dt` (`dt`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8;
关联表：
CREATE TABLE `log_merge` (
`dt` datetime NOT NULL,
`info` varchar(100) NOT NULL,
KEY `dt` (`dt`)
) ENGINE=MRG_MyISAM DEFAULT CHARSET=utf8 UNION=(`log_zz`,`log_xx`,`log_yy`);
这是三张表的数据： 
这是关联表的数据：
执行代码
查询：select * from log_merge;
删除：delete from log_merge where `dt`='2020-08-10 10:48:53';
更新：update table where `dt`='2020-08-10 10:48:53' set `info` = 'SS';
composer的自动加载机制
composer支持四种模式(psr0,psr4,classmap,files)
composer默认psr4,支持php5.2
PSR-4指定的就当作当前命名空间的目录， 而PSR-0 指定的是当前命名空间的父目录。composer dump-autoload 一下
<?php
//实现自动加载类
spl_autoload_register(function ($class) {
/* 限定类名路径映射 */
$class_map = array(
// 限定类名 => 文件路径
$class => $class.".php",
);
/* 引入相关文件 */
if (file_exists($file = $class_map[$class])) include $file;
});
//按照顺序加载(按照命名空间寻找)
$aa =new \classes\AA();
$aa->aa();
echo "\n";
$bb = new \classes\BB();
$bb->bb();
echo "\n";
$sasasaasds = new \saadsadsas\sasasaasds();
$sasasaasds->wqwqwq();
echo "\n";
$fwqdqwd = new \wqeqweqw\fwqdqwd();
$fwqdqwd->尼玛();
sql_autoload_register() 函数 跟 __autoload()相比,
1.__autoload($class) 因为是一个函数，所以只能定义一次，使用多个会冲突报错;而 sql_autoload_register('function') 可定义多个，它有效地创建一个队列的自动装载函数并按顺序依次定义
2.SPL函数很丰富，有更多的操作空间:如spl_autoload_unregister()注销已经注册的函数、spl_autoload_functions()返回所有已经注册的函数等