Tutorial by Examples: pt

If you have a Javascript timestamp value, for example 1478960868932, you can convert that to a MySQL fractional time value like this: FROM_UNIXTIME(1478960868932 * 0.001) It's simple to use that kind of expression to store your Javascript timestamp into a MySQL table. Do this: INSERT INTO table...

get_option function is used to retrieve a value from from options table based on option name. You can use the following code to get email address of a WordPress site administrator. <?php echo get_option('admin_email'); ?> get_option() has an optional 2nd argument, which allows you to set ...

DROP TABLE Database.table_name

You can use conditional operators in WordPress to enqueue scripts on specific pages of your Website. function load_script_for_single_post(){ if(is_single()){ wp_enqueue_script( 'some', get_template_directory_uri().'/js/some.js', array...

add_option function ins used to insert new row into options table. This will insert a new row in options table with option name some_option_name and value as some_option_value <?php add_option( 'some_option_name', 'some_option_value' ); ?>

delete_option function is used to delete an option from the options table. This will delete my_custom_option from the options table. <?php delete_option( 'my_custom_option' ); ?>

update_option function is used to update a value that already exists in the options table. If the option does not exist, then the option will be added with the option value. This will set the default comment status to 'closed': update_option( 'default_comment_status', 'closed' );

18.0 By default, any function specified in a -callback directive in a behaviour module must be exported by a module that implements that behaviour. Otherwise, you'll get a compiler warning. Sometimes, you want a callback function to be optional: the behaviour would use it if present and exported,...

Takes an array of information to generate the CAPTCHA as input and creates the image to your specifications, returning an array of associative data about the image. [array] ( 'image' => IMAGE TAG 'time' => TIMESTAMP (in microtime) 'word' => CAPTCHA WORD ) The "imag...

Once loaded you can generate a captcha like this: $vals = array( 'word' => 'Random word', 'img_path' => './captcha/', 'img_url' => 'http://example.com/captcha/', 'font_path' => './path/to/fonts/texb.ttf', 'img_width' => '150', 'img_height'...

type Props = { posts: Array<Article>, dispatch: Function, children: ReactElement } const AppContainer = ({ posts, dispatch, children }: Props) => ( <div className="main-app"> <Header {...{ posts, dispatch }} /> {children} </...

Full list of options: ls -a list all files including hidden file starting with '.' ls --color colored list [=always/never/auto] ls -d list directories - with ' */' ls -F add one char of */=>@| to enteries ls -i list file's inode index number ls -l list with long form...

In the view file In the base html (index.html) where we usually include the angular scripts or the html that is shared across the app, leave an empty div element, the flash messages will be appearing inside this div element <div class="flashmessage" ng-if="isVisible"> ...

Magento is a very popular eCommerce application. It offers a great deal of customization and abilities from initial install. Here are a few suggestions for optimizing a Magento installation. Enabling Output Compression In your .htaccess file for Magento you will find a section of text starting wit...

There is no imshow in the java, you need to write a method for this. This method is a Mat2bufferedImage. Takes mat object as parameter and returns image. public static void main(String[] args) { Mat frame = new Mat(); //0; default video device id VideoCapture camera = new VideoCaptur...

The following lines of code is more smart way to setting up the base_url in codeigniter: $config['base_url'] = ((isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == "on") ? "https" : "http"); $config['base_url'] .= "://".$_SERVER['HTTP_HOST']; $config[...

The code below calculates the value of PI using a recursive approach. Modify the MAX_PARALLEL_RECURSIVE_LEVEL value to determine at which recursion depth stop creating tasks. With this approach to create parallelism out of recursive applications: the more tasks you create, the more parallel tasks cr...

var express=require("express"); //express is included var path=require("path"); //path is included var app=express(); //app is an Express type of application app.set("views",path.resolve(__dirname,"views")); //tells express about the locati...

Channel adapter is one of message endpoints in Spring Integration. It is used for unidirectional message flow. There are two types of channel adapter: Inbound Adapter: input side of the channel. Listen or actively read message. Outbound Adapter: output side of the channel. Send message to Java cla...

Linux/Unix Once you have Progress installed it's very easy to run. You only need a couple of environment variables. The directory where Progress was installed (default /usr/dlc but can be something else) needs to be in the DLC-variable DLC=/usr/dlc And you might also want the "bin" s...