Tutorial by Examples: d

This helper is loaded using the following code: $this->load->helper('array'); The following functions are available: element() Lets you fetch an item from an array. The function tests whether the array index is set and whether it has a value. If a value exists it is returned. If a value ...

1. Go to File --> Settings (e.g. Ctrl+Alt+S ). 2. In the left-hand pane, select Plugins. 3.On the Plugins window, click "Install JetBrains plugin" or the "Browse repositories button".

1. Go to File --> Settings (e.g. Ctrl+Alt+S ). 2. In the left-hand pane, select Plugins. 3. On the Plugins window, click "Install plugin from disk button". 4. Select the desired plugin from your local machine. Click Apply button of the Settings/Preferences dialog. O...

Registering a custom post type does not mean it gets added to the main query automatically. You need to use pre_get_posts filter to add custom post types to main query. // Show posts of 'post' and 'book' custom post types on home page add_action( 'pre_get_posts', 'add_my_post_types_to_query' ); ...

DIO streams are currently not recognized by the Event extension. There is no clean way to obtain the file descriptor encapsulated into the DIO resource. But there is a workaround: open stream for the port with fopen(); make the stream non-blocking with stream_set_blocking(); obtain numeric file...

You can add below hooks to add your own logo and link to replace default wordpress logo. To add custom logo function custom_login_logo() { echo '<style type="text/css"> h1 a { background-image: url('.get_bloginfo('template_directory').'/images/custom-logo.png) !important; backgro...

There are already implemented forms within Django to change the user password, one example being SetPasswordForm. There aren't, however, forms to modify the user e-mail and I think the following example is important to understand how to use a form correctly. The following example performs the foll...

In your class that is under test, you may have some private fields that are not accessible even through constructor. In such cases you can use reflection to set such properties. This is a snippet from such JUnit test. @InjectMocks private GreetingsService greetingsService = new GreetingsService();...

Once you've met the prerequisites for installing Nexus Repository Manager 3, you'll need to follow a few steps to get it running on Windows. Unzip the package, e.g. 7za.exe e nexus-3.1.0-04-win64.zip Copy the package to a sane place, likely C:\nexus Assuming you are using the command prompt a...

This is a sample HTTP client class based on Event extension. The class allows to schedule a number of HTTP requests, then run them asynchronously. http-client.php <?php class MyHttpClient { /// @var EventBase protected $base; /// @var array Instances of EventHttpConnection protect...

In [1]: import pandas as pd import numpy as np In [2]: df = pd.DataFrame(np.random.choice(['foo','bar','baz'], size=(100000,3))) df = df.apply(lambda col: col.astype('category')) In [3]: df.head() Out[3]: 0 1 2 0 bar foo baz 1 baz bar baz 2 foo foo b...

As an example, lets us look at a Wordpress container The Dockerfile begins with FROM php:5.6-apache so we go to the Dockerfile abovementioned https://github.com/docker-library/php/blob/master/5.6/apache/Dockerfile and we find FROM debian:jessie So this means that we a security patch appears f...

This is a sample HTTP client based on Ev extension. Ev extension implements a simple yet powerful general purpose event loop. It doesn't provide network-specific watchers, but its I/O watcher can be used for asynchronous processing of sockets. The following code shows how HTTP requests can be sche...

//default DateTime patterns worksheet.Cells["A1:A25"].Style.Numberformat.Format = DateTimeFormatInfo.CurrentInfo.ShortDatePattern; //custom DateTime patters worksheet.Cells["A1:A25"].Style.Numberformat.Format = "dd-MM-yyyy HH:mm"; //or overwrite the patterns in ...

The ApplicationData.Current.LocalFolder api allows us to get access to the application cache : var file = await ApplicationData.Current.LocalFolder.CreateFileAsync("myFile.dat", CreationCollisionOption.ReplaceExisting); The FileIO class contains a set of utility methods to easily add d...

Anonymous pipes, or simply pipes, are kernel-managed objects exposed to processes as a pair of file descriptors, one for the read terminus and one for the write terminus. They are created via the pipe(2) function: int pipefds[2]; int result; result = pipe(pipefds); On success, pipe() record...

File descriptors and FILE objects are per-process resources that cannot themselves be exchanged between processes via ordinary I/O. Therefore, in order for two distinct processes to communicate via an anonymous pipe, one or both participating processes must inherit an open pipe end from the process...

Connecting two child processes via a pipe is performed by connecting each of two children to the parent via different ends of the same pipe. Usually, the parent will not be party to the conversation between the children, so it closes its copies of both pipe ends. int demo() { int pipefds[2]; ...

An example, to add a "Key2" key with a value of "Value2" to the hash table, using the addition operator: $hashTable = @{ Key1 = 'Value1' } $hashTable += @{Key2 = 'Value2'} $hashTable #Output Name Value ---- -----...

The cluster library contains the ruspini data - a standard set of data for illustrating cluster analysis. library(cluster) ## to get the ruspini data plot(ruspini, asp=1, pch=20) ## take a look at the data hclust expects a distance matrix, not the original data. We ...