AJAX is a powerful and flexible tool that can help developers create simpler applications. Can be used for a variety of purposes, such as loading content or verifying login credentials. The main advantage of AJAX is asynchrony. That is, you do not have to reload the entire page to receive new data. The word printer is used by Ajax. There is an excellent mechanism to easily implement Ajax functionality. In this article, we will introduce the basic content of Ajax and create a very simple extension program to use ajax to obtain search results in the default twenty four topic. The
What is Ajax? AJAX is not really a technology, but a mixture of known programming languages. AJAX is an abbreviation for nd x ml avascript motivation J. JavaScript is used to send some data to the server, which returns anything in XML format. XML doesn’t really need it, but JSON is often used. When using JSON, it is sometimes called Ajax, not Ajax. In fact, the server can return simple strings or HTML, so there is no need to limit it to XML or JSON at all. For the purposes of this article, see Ajax, regardless of the type of data we return. The
How is Ajax used? Let’s look at a practical example instead of looking at the code in detail. Suppose you create a real estate website and provide an opportunity to save a list for visitors to view later. You can use the save later button to provide this functionality. If the user clicks this button, the list is moved to the script added to the subsequent list and redirected to the page being viewed. This means that the page must be reloaded. Real estate websites may have many pictures, and many pictures may not be cached, so the loading time will be prolonged. The
Better solutions include: When the user clicks the button, the button displays several loading animations. The button disappears with the text \
Even if it seems a little complicated, don’t worry! In fact, the process is very simple and will take some time to become familiar with. Using Ajax in a text printer AJAX is completely independent of frameworks such as word press. Do it the way you like. However, WordPress has built-in support for Ajax workflows. This step must be followed in order for a plug-in or topic to pass muster. Let’s look at a very simple example that includes three steps. We will use the Ajax foundation in WordPress instead of actually using Ajax itself in custom solutions. Create a one-time button that displays if the user has not already clicked, or \
Before continuing with the custom implementation, you should understand how the user knows if the button has been clicked. When the user clicks the button, the clicked_link user metadata with a value of yes will be generated. Confirmed functions include: Load summary 4b40f2c4d42973a22ba6 now user interface
No longer redirect. WordPress provides a doing_ajax constant that can be used to determine whether an Ajax request has occurred. If so, we will reply and die, otherwise we will redirect: load the summary 4b40f2c4d42973a22ba6 using this method, you can use the same workflow with the same functions as JavaScript to handle activation and deactivation. Let’s modify the Tweety four theme and use ajax to load search results on the search results loading page of the site. The first step is to create a subtopic. For more information, see the article on how to create WordPress subtopics. Add the asset to the queue, and then put the JavaScript file used to implement the JavaScript function in the queue. Make sure that the script is loaded only on the search page. This is because the search page may have a different sidebar from the regular post list page. Therefore, when the user searches for the first time, the search page will actually load. On the search page, the results are imported through Ajax. Use the load summary 4b40f2c4d42973a22ba6 wp\u localize\u script() function to manage -ajax. Check if you can access the location of the PHP file. Previously, you could search from the URL of the button, but you could not get it from the page. You can add language support to a script using the wp\u localize\u script() function. This is also a good way to pass variables, so we use it here. In that case, myajax You can use ajaxurl to point to a valid URL for JavaScript. CSS files are also queued. The minimum CSS code we will use can be well added to the style sheets of the subtopics. I chose to add private files to the queue just to partition the assets. Ultimately, you can create plug-ins more easily. Search interception the next step is to intercept the search, stop tracking, and pass the search term to the custom script that returns new results. Now, let’s set up JavaScript. Load summary 4b40f2c4d42973a22ba6 I added the load class to the content element using the beforeSend event and disabled input. This can provide some feedback to the user and avoid sending multiple requests due to multiple searches. If successful, the content of the \content element will be changed to the new result. CSS for handling loads includes fading out content and generating beautiful load coverage. Load summary 4b40f2c4d42973a22ba6 and display all contents in the front end: The task of loading server-side JavaScript calls after AJAX is load_search_results. We must use it in the task we want to create. This time, you must ensure that wp\u Ajax and wp\u ajax\nopriv are run for both logged in and logged out users, and wp\u ajax\u nopriv are both wp\u ajax\u nopriv. Create a custom WordPress query, the search of twenty four. Return the result using the same code as found in PHP. Load summary 4b40f2c4d42973a2bab6 the result of this function is part of HTML generated using the unique functions of word press and twenty four. In this way, you can get the correct format every time even if you can’t find the post. Conclusion AJAX is an excellent add-on to the WordPress toolkit, from minor UI improvements to greater performance improvements. At the first contact, you may need to wash your hair and try, but it is actually very simple. Front end complex J
Due to the possible increased complexity of avascript and server-side complex PHP, sometimes Ajax becomes more difficult than Ajax itself. If you are interested in Ajax functionality, it is recommended to search the word press plugin repository for available Ajax related plug-ins. In addition, it is recommended to read the W3Schools Ajax tutorial and the jQuery Ajax function documentation. If you think that using Ajax in WordPress has created wonderful things, or that adding Ajax in some aspects of WordPress has many benefits, please tell us in the comments below. Label: ajos koment
