<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[执笔·写青春]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/yu9696</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; yu9696]]></copyright><item><title><![CDATA[文件上传（加水印、生成预览图）]]></title><link>https://blog.youkuaiyun.com/yu9696/article/details/76422647</link><guid>https://blog.youkuaiyun.com/yu9696/article/details/76422647</guid><author>yu9696</author><pubDate>Mon, 31 Jul 2017 10:57:20 +0800</pubDate><description><![CDATA[pre code_snippet_id="397262" snippet_file_name="blog_20140618_1_9018773"  name="code" class="php">html>  
head> 
meta http-equiv="Content-Type" content="text/html; charset=utf-8" />  
title>图片上传程序titl]]></description><category></category></item><item><title><![CDATA[开启事务]]></title><link>https://blog.youkuaiyun.com/yu9696/article/details/72683291</link><guid>https://blog.youkuaiyun.com/yu9696/article/details/72683291</guid><author>yu9696</author><pubDate>Mon, 31 Jul 2017 10:20:06 +0800</pubDate><description><![CDATA[/**
 * 对数据库多张表进行 增、删、改的时候，开启事务
 * 用Yii2 来进行举例
 * 
public function actionCreateDynamic()
{
$request = Yii::$app->request;
$user_id = $request->post('user_id'); //用户id
$content = $request->post('content]]></description><category></category></item><item><title><![CDATA[如何搭建lamp(CentOS7+Apache+MySQL+PHP)环境]]></title><link>https://blog.youkuaiyun.com/yu9696/article/details/76066750</link><guid>https://blog.youkuaiyun.com/yu9696/article/details/76066750</guid><author>yu9696</author><pubDate>Tue, 25 Jul 2017 14:06:51 +0800</pubDate><description><![CDATA[一、安装Apache

1.安装
yum
 -y install httpd
2.开启apache服务
systemctl
 start httpd.service
3.设置apache服务开机启动
systemctl
 enable httpd.service
4.验证apache服务是否安装成功
在本机浏览器中输入虚拟机的ip地址，CentOS7查看ip地址的方式为：]]></description><category></category></item><item><title><![CDATA[CentOS下是SVN服务的搭建、启动与关闭]]></title><link>https://blog.youkuaiyun.com/yu9696/article/details/76046313</link><guid>https://blog.youkuaiyun.com/yu9696/article/details/76046313</guid><author>yu9696</author><pubDate>Tue, 25 Jul 2017 09:46:36 +0800</pubDate><description><![CDATA[CentOS下SVN服务的启动与关闭

操作系统：CentOS 6.5 
SVN版本：1.8.11

启动SVN服务： 
svnserve -d -r /home/svn

/home/svn 为版本库的根目录；

关闭SVN服务： 
使用以下命令查找进程 
ps aux | grep svn
# ps aux | grep svn
root     64434  0.0]]></description><category></category></item><item><title><![CDATA[CentOS7使用firewalld打开关闭防火墙与端口]]></title><link>https://blog.youkuaiyun.com/yu9696/article/details/76045475</link><guid>https://blog.youkuaiyun.com/yu9696/article/details/76045475</guid><author>yu9696</author><pubDate>Tue, 25 Jul 2017 09:44:08 +0800</pubDate><description><![CDATA[莫小安








CentOS7使用firewalld打开关闭防火墙与端口

1、firewalld的基本使用
启动： systemctl start firewalld
查看状态： systemctl status firewalld 
停止： systemctl disable firewalld
禁用： systemctl stop firewalld
]]></description><category></category></item><item><title><![CDATA[Linux下查看网络配置]]></title><link>https://blog.youkuaiyun.com/yu9696/article/details/75645607</link><guid>https://blog.youkuaiyun.com/yu9696/article/details/75645607</guid><author>yu9696</author><pubDate>Fri, 21 Jul 2017 14:37:05 +0800</pubDate><description><![CDATA[查看IP
[root@localhost ~]# ifconfig
em1       Link encap:Ethernet  HWaddr F0:1F:AF:D6:17:DD  
          inet addr:115.238.54.116  Bcast:115.238.54.127  Mask:255.255.255.224
          inet6 addr: fe8]]></description><category></category></item><item><title><![CDATA[git教程]]></title><link>https://blog.youkuaiyun.com/yu9696/article/details/75417704</link><guid>https://blog.youkuaiyun.com/yu9696/article/details/75417704</guid><author>yu9696</author><pubDate>Wed, 19 Jul 2017 16:59:02 +0800</pubDate><description><![CDATA[https://www.liaoxuefeng.com/wiki/0013739516305929606dd18361248578c67b8067c8c017b000]]></description><category></category></item><item><title><![CDATA[子查询]]></title><link>https://blog.youkuaiyun.com/yu9696/article/details/72903186</link><guid>https://blog.youkuaiyun.com/yu9696/article/details/72903186</guid><author>yu9696</author><pubDate>Wed, 07 Jun 2017 19:41:34 +0800</pubDate><description><![CDATA[select a.activities_id ,a.activities_name , a.need_people ,from_unixtime(a.activities_time,"%Y-%m-%d") as activities_time,
 concat("http://www.aibeike.com/",ai.activities_url ) as activities_url,
(s]]></description><category></category></item><item><title><![CDATA[上传图片、批量上传图片]]></title><link>https://blog.youkuaiyun.com/yu9696/article/details/72626756</link><guid>https://blog.youkuaiyun.com/yu9696/article/details/72626756</guid><author>yu9696</author><pubDate>Mon, 22 May 2017 15:45:59 +0800</pubDate><description><![CDATA[1、上传文件

/**
 * @name 上传文件
 * @param $file
 * @return int|string
 * 在models中创建Star模型 */public function uploadFile($file){    if ($_FILES[$file]) {        if ($_FILES[$file]['error'] > 0) return 0;  ]]></description><category></category></item><item><title><![CDATA[PHP如何实现验证码]]></title><link>https://blog.youkuaiyun.com/yu9696/article/details/71214363</link><guid>https://blog.youkuaiyun.com/yu9696/article/details/71214363</guid><author>yu9696</author><pubDate>Fri, 05 May 2017 16:24:33 +0800</pubDate><description><![CDATA[http://www.cnblogs.com/m-m-g-y0416/p/5689797.html]]></description><category></category></item><item><title><![CDATA[JS鼠标移入，移出事件]]></title><link>https://blog.youkuaiyun.com/yu9696/article/details/68942408</link><guid>https://blog.youkuaiyun.com/yu9696/article/details/68942408</guid><author>yu9696</author><pubDate>Sat, 01 Apr 2017 11:12:41 +0800</pubDate><description><![CDATA[该事件的效果就像百度首页的设置选项，当鼠标移入，移出时的效果，废话不多说了，直接上码。
　　


    
    百度
    ·····························································一下是CSS
    #wrap{
        width: 150px;height: 200px;
        /*b]]></description><category></category></item><item><title><![CDATA[API接口登录]]></title><link>https://blog.youkuaiyun.com/yu9696/article/details/65658694</link><guid>https://blog.youkuaiyun.com/yu9696/article/details/65658694</guid><author>yu9696</author><pubDate>Fri, 24 Mar 2017 21:55:32 +0800</pubDate><description><![CDATA[利用PHP连接MySQL数据库实现了一个简单的用户登录注册及修改密码的API接口，接口为标准的json输出，本地验证通过。功能比较简单，不过也自己摸索了挺长时间，期间各种百度解决了各种不懂。数据库只有name、psd和tel三个字段，接口均设计为POST方式提交。代码基本都有注释比较好理解，下面附上代码。





[php] view
 plain copy





]]></description><category></category></item><item><title><![CDATA[laravel框架的登录登出]]></title><link>https://blog.youkuaiyun.com/yu9696/article/details/65629689</link><guid>https://blog.youkuaiyun.com/yu9696/article/details/65629689</guid><author>yu9696</author><pubDate>Fri, 24 Mar 2017 13:19:35 +0800</pubDate><description><![CDATA[首先确认，后台的用户表，我设计表叫做badmin，每个管理员有用户名（username），有昵称（nickname），有邮箱（email），有密码（password）

这里玩个花，使用laravel的migration来建立表（实际上可以用不着使用这个工具建立表）

 

1 安装好最基本的laravel框架

2 创建migration文件：

./artisan migr]]></description><category></category></item><item><title><![CDATA[使用MD5对数据表字段进行加密]]></title><link>https://blog.youkuaiyun.com/yu9696/article/details/65628971</link><guid>https://blog.youkuaiyun.com/yu9696/article/details/65628971</guid><author>yu9696</author><pubDate>Fri, 24 Mar 2017 11:39:26 +0800</pubDate><description><![CDATA[--3.2.1
 创建数据表 

Drop

Table 
Test_User; 

CREATE

TABLE 
Test_User ( 

　
 UserName　VARCHAR2(30)　NOT

NULL,


　PassWord　VARCHAR2(2000)　NOT

NULL

)


/


 

--3.2.2
 创建]]></description><category></category></item><item><title><![CDATA[php上传文件，支持多个文件上传]]></title><link>https://blog.youkuaiyun.com/yu9696/article/details/65628826</link><guid>https://blog.youkuaiyun.com/yu9696/article/details/65628826</guid><author>yu9696</author><pubDate>Fri, 24 Mar 2017 11:28:12 +0800</pubDate><description><![CDATA[class UploadModel 
{ 
protected $keys; 
protected $err = array(); 
protected $target; 
protected $exts; 
protected $maxSize; 
protected $randName; 
protected $files = array(); 
/** 
* 初始化变量 ]]></description><category></category></item><item><title><![CDATA[php中下载]]></title><link>https://blog.youkuaiyun.com/yu9696/article/details/65628596</link><guid>https://blog.youkuaiyun.com/yu9696/article/details/65628596</guid><author>yu9696</author><pubDate>Fri, 24 Mar 2017 11:19:12 +0800</pubDate><description><![CDATA[if( empty($_GET['FileName'])|| empty($_GET['FileDir'])|| empty($_GET['FileId'])){
    echo' alert("非法连接 !");
    location.replace ("index.php") '; exit();
}
$file_name=$_GET['FileName'];
$file_di]]></description><category></category></item><item><title><![CDATA[svn使用总结]]></title><link>https://blog.youkuaiyun.com/yu9696/article/details/65628577</link><guid>https://blog.youkuaiyun.com/yu9696/article/details/65628577</guid><author>yu9696</author><pubDate>Fri, 24 Mar 2017 11:17:39 +0800</pubDate><description><![CDATA[SVN简介：

 为什么要使用SVN？

      程序员在编写程序的过程中，每个程序员都会生成很多不同的版本，这就需要程序员有效的管理代码，在需要的时候可以迅速，准确取出相应的版本。

Subversion是什么？

   它是一个自由/开源的版本控制系统，一组文件存放在中心版本库，记录每一次文件和目录的修改，Subversion允许把数据恢复到早期版本，或是检查数据修改的历史]]></description><category></category></item><item><title><![CDATA[php7的一些新特性]]></title><link>https://blog.youkuaiyun.com/yu9696/article/details/60326146</link><guid>https://blog.youkuaiyun.com/yu9696/article/details/60326146</guid><author>yu9696</author><pubDate>Sat, 04 Mar 2017 14:43:52 +0800</pubDate><description><![CDATA[新特性预览


?




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ZEND引擎升级到Zend Engine 3，也就是所谓的PHP NG
增加抽象语法树，使编译更加科学
64位的INT支持
统一的变量语法
原声的TLS - 对扩展开发有意义
一致性foreach循环的改进
新增 、**、?? 、\u{xxxx}操作符
增加了]]></description><category></category></item><item><title><![CDATA[响应式布局]]></title><link>https://blog.youkuaiyun.com/yu9696/article/details/52049003</link><guid>https://blog.youkuaiyun.com/yu9696/article/details/52049003</guid><author>yu9696</author><pubDate>Wed, 27 Jul 2016 20:07:59 +0800</pubDate><description><![CDATA[页面布局：
静态布局（Static Layout）
自适应布局（Adaptive Layout）-->自适应布局可以看作是静态布局的一个单独的系列
流式布局（Liquid Layout）
响应式布局（Responsive Layout）-->可以看作是流式布局和自适应布局设计理念的融合
一、什么是响应式布局?
      响应式布局是Ethan Marcotte在2010年5月份提出的]]></description><category></category></item><item><title><![CDATA[BFC]]></title><link>https://blog.youkuaiyun.com/yu9696/article/details/52048988</link><guid>https://blog.youkuaiyun.com/yu9696/article/details/52048988</guid><author>yu9696</author><pubDate>Wed, 27 Jul 2016 20:07:02 +0800</pubDate><description><![CDATA[BFC  Block Formatting（格式化应用） Contexts（内容）：块级格式化上下文，它是指一个独立的块级渲染区域，只有Block-level
 BOX参与，该区域拥有一套渲染规则来约束块级盒子的布局，且与区域外部无关。
 
　　BFC的生成
 
　　既然上文提到BFC是一块渲染区域，那这块渲染区域到底在哪，它又是有多大，这些由生成BFC的元素决定，CSS2.1中规定满足]]></description><category></category></item></channel></rss>