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How to avoid isset() and empty()
...hat may or may not be set by a controller, you'll just have to check:
<table>
<?php if (!empty($foo) && is_array($foo)) : ?>
<?php foreach ($foo as $bar) : ?>
<tr>...</tr>
<?php endforeach; ?>
<?php else : ?>
...
Storing Images in PostgreSQL
...ommend:
use blob (Binary Large OBject): for original image store, at your table. See Ivan's answer (no problem with backing up blobs!), PostgreSQL additional supplied modules, How-tos etc.
use a separate database with DBlink: for original image store, at another (unified/specialized) database. I...
9个常用iptables配置实例 - 更多技术 - 清泛网 - 专注C/C++及内核技术
9个常用iptables配置实例iptables命令可用于配置Linux的包过滤规则，常用于实现防火墙、NAT。咋一看iptables的配置很复杂，掌握规律后，其实用iptables完成指定任务...iptables命令可用于配置Linux的包过滤规则，常用于实现防火墙、NAT。...
How to highlight text using javascript
...xt");
let searchContainer = document.body; // document.getElementById("someTable");
let highlighter = new SearchTools.InstantSearch(searchContainer, [
{
token: "this is the text to highlight" // searchText.value,
className: "highlight", // this is the individual highlight class
...
What’s the difference between ScalaTest and Scala Specs unit test frameworks?
...
Mockito has been given a nice BDD support in specs: Mockito
specs has DataTables which allow to group a lot of small example in a sort of table (if you can stand operators being used as the table delimiters)
In specs, you can define examples which are nested as libidum and automatically cleaned-up ...
Best practice multi language website
...s upon change so you could replace the .INI files with a 3-column database table with placeholder, replacement, language. Compound key on placeholder and language. Then have another 2-col with tempfile (path to template) and modified (DATETIME).
– Glitch Desire
...
How do I obtain a Query Execution Plan in SQL Server?
...mat.
Notes:
Because there are so many factors involved (ranging from the table and index schema down to the data stored and the table statistics) you should always try to obtain an execution plan from the database you are interested in (normally the one that is experiencing a performance problem)....
Is there any reason for using WebGL instead of 2D Canvas for 2D games/apps?
...idden box.
As for comparisons, Since there is no quick way of creating a table here, I just uploaded a picture of the comparison table below. Added Three.js for completeness only.
share
|
improv...
Hibernate Criteria returns children multiple times with FetchType.EAGER
...of the outer
joined result but returns all the duplicates of the driving table. If
you have 5 orders in the database, and each order has 3 line items,
the resultset will be 15 rows. The Java result list of these queries
will have 15 elements, all of type Order. Only 5 Order instances will
...
What is the difference between Strategy design pattern and State design pattern?
...that useful. You can always implement finite state machines using a lookup table (it's not an OO way, but it works pretty well).
Strategy is used for the following [GoF book p. 316]:
many related classes differ only in their behavior. Strategies provide a way to configure a class with one of...