摘要：
http://shrinksafe.dojotoolkit.org/ a JavaScript interpreter 阅读全文
摘要：
http://www.cnblogs.com/huangxincheng/archive/2012/07/21/2602375.html 一：场景： 1：现状 前几天我的一个大学同学负责的网站出现了严重的性能瓶颈，由于业务是写入和读取都是密集型，如果做缓存，时间间隔也只能在30s左 右，否则就会引起 阅读全文
摘要：
Access-Control-Allow-Headers 响应首部 Access-Control-Allow-Headers 用于 preflight request （预检请求）中，列出了将会在正式请求的 Access-Control-Request-Headers 字段中出现的首部信息。 简单首 阅读全文
摘要：
小结： 1、解耦数据交互层、展示层 By decoupling the data interchange layer from the presentation layer, Ajax allows Web pages, and by extension Web applications, to c 阅读全文
摘要：
https://en.wikipedia.org/wiki/Ajax_(programming) https://zh.wikipedia.org/wiki/AJAX Ajax (also AJAX; /ˈeɪdʒæks/; short for asynchronous JavaScript and 阅读全文
摘要：
$df = disk_free_space('/')/1024/1024/1024; $df_c = disk_free_space("c:"); $df_d = disk_free_space("d:"); echo $df,'-',$df_c,'-',$df_d; 阅读全文
摘要：
https://www.php.net/manual/en/language.references.whatare.php What References Are References in PHP are a means to access the same variable content by 阅读全文
摘要：
CodeIgniter 3.1.0 1 <?php 2 //\system\core\Common.php 3 function &load_class($class, $directory = 'libraries', $param = null) 4 { 5 static $_classes = array(); 6 7 //....... ... 阅读全文
摘要：
php.net Objects of the same type will have access to each others private and protected members even though they are not the same instances. This is be 阅读全文
摘要：
php.net PHP 5 allows developers to declare constructor methods for classes. Classes which have a constructor method call this method on each newly-cre 阅读全文
摘要：
php.net Many developers writing object-oriented applications create one PHP source file per class definition. One of the biggest annoyances is having 阅读全文
摘要：
php.net Class member variables are called "properties". You may also see them referred to using other terms such as "attributes" or "fields", but for 阅读全文
摘要：
https://docs.mongodb.com/manual/introduction/ 添加字段 db.Analyse_user.updateMany( {}, {$set: {clue_area:[],clue_category:[]}}); > db.auth("pyspark_admin" 阅读全文
摘要：
The foreach construct provides an easy way to iterate over arrays. foreach works only on arrays and objects, and will issue an error when you try to u 阅读全文
摘要：
MYSQLI_REPORT_OFF Turns reporting off MYSQLI_REPORT_ERROR Report errors from mysqli function calls MYSQLI_REPORT_STRICT Throw mysqli_sql_exception for 阅读全文
摘要：
Mysql通信协议 - 张冲andy - 博客园 https://www.cnblogs.com/andy6/p/6204579.html 阅读全文
摘要：
If an object is converted to an object, it is not modified. If a value of any other type is converted to an object, a new instance of the stdClass bui 阅读全文
摘要：
data-definition language 数据定义语言 data-manipulation language 数据操纵语言 data type definition 文档类型定义 阅读全文
摘要：
9/24 12 01 00 1 529264 1132 066 033 016 18 04 02 01 00 1 3216 08 04 02 01 00 1 数据结构：栈 练习题 A binary gap within a positive integer N is any maximal sequ 阅读全文
摘要：
1 ---情景--- 2 菜单结构 3 -1级-（整站页面导航，如“首页、产品介绍”）-2级-（‘产品介绍->酒水类（粮油类）->-3级-白酒、红酒、葡萄酒（大米、面粉）’） 4 ---情景------现有数据库(暂不考虑数据库的设计)-- 5 id-parent_id(每一项都有) 6 ---需求------动态读取、渲染出菜单层级结构 7 ---问题--- 8 多维数组、集合... 阅读全文
摘要：
Storing Sessions in a Database 阅读全文
摘要：
XML Processing Modules — Python 3.7.1 documentation https://docs.python.org/3.7/library/xml.html#xml-vulnerabilities api 在考虑怎么class DOM XML 时，应该跳出这个思维 阅读全文
摘要：
wamp->php.ini ; This option forces PHP to fetch and use a cookie for storing and maintaining; the session id. We encourage this operation as it's very 阅读全文
摘要：
PHP Advanced and Object-Oriented Programming Larry Ullman Last-Modified 最后修改时间 Expires 过期时间 Pragma 编译提示 Cache-Control 缓存控制 如缓存系统发现Last-Modified的值比页面缓存 阅读全文
摘要：
PHP Advanced and Object-Oriented Programming Larry Ullman 1 <Directory /> 2 AllowOverride None 3 </Directory> 4 #Depending on the installation and con 阅读全文
摘要：
---情景--- 关系：角色N-N区域 基础表：角色表、区域表 关系表：主键-角色id-区域id集 ---需求--- 实现“单个区域勾选角色”且不借助与非SQL脚本（php etc）遍历 ---疑惑--- 之前我的处理是： 组合数据--先更新temporary table--借助临时表更新原关系表， 可以实现需求，页面已可渲染，程序已自测通过。 但今天虎哥、冬哥不让用临时表 目前（mysql ... 阅读全文
摘要：
PHP Advanced and Object-Oriented Programming Larry Ullman The standard solution in these situations is to use the Apache Web server’s mod_rewrite modu 阅读全文
摘要：
Discuz! 数据库字典_Discuz! 资料库 https://www.dz7.com.cn/library/database/x25_index.html pre_forum_forum 版块表 主键fid 全局字段fid mediumint(8) unsigned 版块ID、论坛id pre 阅读全文
摘要：
1 $db = new mysqli('localhost', 'root', '', 'w'); 2 if($db->connect_error){ 3 die('Connect Error ( '.$db->connect_errno.' )'.$db->connect_error); 4 } 5 echo 'Connect OK.'; 6 $wtab = 'w'.ra... 阅读全文
摘要：
C:\>php D:\cmd\amzapi\amzapitest_com\MarketplaceWebServiceOrders\Samples\wd_learn.phpstring(2) "w1"string(3) "ww1"string(2) "w2"string(3) "ww2"string( 阅读全文
摘要：
JavaScript: The Definitive Guide, Sixth Edition by David Flanagan Property access expressions do not always return or set a value. This section explai 阅读全文
摘要：
High Performance MySQL, Third Edition by Baron Schwartz, Peter Zaitsev, and Vadim Tkachenko 1 <?php 2 3 $db = new mysqli('localhost', 'root', '', 'w') 阅读全文
摘要：
High Performance MySQL, Third Editionby Baron Schwartz, Peter Zaitsev, and Vadim Tkachenko Settings for client/server communication When the server an 阅读全文
摘要：
High Performance MySQL, Third Edition by Baron Schwartz, Peter Zaitsev, and Vadim Tkachenko There are two kinds of numbers: whole numbers and real num 阅读全文
摘要：
High Performance MySQL, Third Edition by Baron Schwartz, Peter Zaitsev, and Vadim Tkachenko http://dev.mysql.com/doc/refman/5.7/en/charset-general.htm 阅读全文
摘要：
http://dev.mysql.com/doc/refman/5.7/en/view-updatability.html Some views are updatable and references to them can be used to specify tables to be upda 阅读全文
摘要：
1 abd2 werg5 rthbg数字1和字母a b d 有关， 数字2和字母w e r g 有关 ，数字5和、、、、、、，字母a和数字1有关，字母b和数字1、5有关 求算法：和各个字母相关的各个数字 阅读全文
摘要：
#总结 角色表-关系表-区域表 N-N 关系表 结构 主键id-角色id-区域id集 现在要处理为单个区域分配角色#处理办法 ； 如果为单个角色分配区域，即可直接更新关系表某行或新增行（命名为w顺向关系表操作w）；当前问题；将w逆向向关系表操作w转化为顺向关系表操作#转化办法；该关系表打散成单行，形 阅读全文