作者归档：杨龙

uglifyjs 压缩下js文件

1. 安装

npm install uglify-js -g

2. 单文件压缩

uglifyjs .\u17.js -o u17.min.js

3. 谁教下我怎么混淆？

Twig 快速集成

假设你的项目项目使用composer

1. 安装，为了兼容php5.4使用的是1.x版本

composer require twig/twig:~1.0

2. 封装为trait以集成

namespace objects\Traits;

trait DoufuTwig {

    /**
     * @var \Twig_Environment
     */
    private $twig;

    protected function renderTwig($path, $data = []) {
        if (! $this->twig) {
            $loader = new \Twig_Loader_Filesystem(APPPATH . 'views');
            $this->twig = new \Twig_Environment($loader, 
                array(
                    'cache' => APPPATH . 'cache',
                    'auto_reload' => true
                ));
        }
        
        return $this->twig->render($path, $data);
    }
}

3. 使用

集成到控制器父类

namespace Ncontrollers;

use objects\Traits\DoufuTwig;

abstract class Controller
{
    use DoufuTwig;
}

控制器内使用

...
echo $this->renderTwig('xxx/login.html');
...

xtrabackup 快速增量备份教程

xtrabackup –backup –compress –target-dir=/mysqlbackup/full –user=aaa –host=hostname –password=xxxx –databases=ggggg

xtrabackup –backup –compress –target-dir=/mysqlbackup/incr –incremental-basedir=/mysqlbackup/full –user=aaa –host=hostname –password=xxxx –databases=ggggg

–compress 压缩

Error Code: 1503. A PRIMARY KEY must include all columns in the table’s partitioning function

Automatically populating $HTTP_RAW_POST_DATA is deprecated and will be removed in a future version. To avoid this warning set ‘always_populate_raw_post_data’ to ‘-1’ in php.ini and use the php://input stream instead.

Deprecated: Automatically populating $HTTP_RAW_POST_DATA is deprecated and will be removed in a future version. To avoid this warning set ‘always_populate_raw_post_data’ to ‘-1’ in php.ini and use the php://input stream instead. in
Unknown on line
0
 
 
Warning: Cannot modify header information – headers already sent in
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0

edit php.ini and set always_populate_raw_post_data = -1

; Always populate the $HTTP_RAW_POST_DATA variable. PHP’s default behavior is
; to disable this feature and it will be removed in a future version.
; If post reading is disabled through enable_post_data_reading,
; $HTTP_RAW_POST_DATA is *NOT* populated.
; http://php.net/always-populate-raw-post-data
always_populate_raw_post_data = -1

MySQL 搜索 emoji 表情匹配错误问题

令人无语bug，你猜得没错是编码问题我的编码是utf8mb4_unicode_ci，这是laravel的默认编码啊，解决办法是使用 utf8mb4_bin 即可。。。。

奇异的setcookie无效问题

api.xxxx.com/aaa 页面下setcookie，

api.xxxx.com/xxx，cookie 有效

api.xxxx.com/index.php/xxx，cookie 无效

其实是cookie path的问题

setcookie($key, $value, null, ‘/’, null, null);

Cannot install, php_dir for channel “pecl.php.net” is not writeable by the current user

切换到root用户执行pecl命令，当前用户没有php程序目录的写入权限

stuck key XX

今天维修公司笔记本，开机显示

stuck key XX

上网查询到是键盘某个键处于按下状态，无法弹起

XX就是坏掉的键的编码

键盘码参考

http://flint.cs.yale.edu/cs422/doc/art-of-asm/pdf/APNDXC.PDF

PHP Fatal error: Can’t use function return value in write context

empty

(PHP 4, PHP 5, PHP 7)
empty — 检查一个变量是否为空

说明 ¶

bool empty ( mixed $var )
判断一个变量是否被认为是空的。当一个变量并不存在，或者它的值等同于FALSE，那么它会被认为不存在。如果变量不存在的话，empty()并不会产生警告。

Note:
在 PHP 5.5 之前，empty() 仅支持变量；任何其他东西将会导致一个解析错误。换言之，下列代码不会生效： empty(trim($name))。作为替代，应该使用trim($name) == false.