AJAX Tutorials

How to get JSON data from JavaScript to PHP
- Ajax tutorial with examples about getting JSON data in PHP sent from JavaScript
Ajax request when the page is closed
- Simple JavaScript script to make Ajax request when the user closes the page. Register with Ajax and PHP the time users spend on website
Check and Validate input field when loses focus, with PHP via Ajax
- Check and Validate input form field when loses focus, onblur event, with PHP via Ajax
Multiple Select Dropdown List with AJAX
- Multiple Select Dropdown List with AJAX, create triple select option lists with data from MySQL table
Multiple upload files
- Ajax Script, Multiple upload files by adding multiple uploading input fields in the form
Execute JavaScript scripts loaded via AJAX
- Ajax Tutorial - Execute JavaScript scripts loaded via AJAX, response from PHP
Download AJAX resources
- Free Download AJAX resources, pdf ebooks, video courses and tutorials for learning AJAX

Which tag renders as emphasized text, displaying the text oblique?

<p>Web development courses: <em>CoursesWeb.net</em></p>

Which CSS property defines the space between the element border and its content?

margin padding position

h3 {
  padding: 2px 0.2em;
}

Click on the method which returns the first element that matches a specified group of selectors.

getElementsByName() querySelector() querySelectorAll()

// gets first Div with class="cls", and shows its content
var elm = document.querySelector("div.cls");
alert(elm.innerHTML);

Indicate the PHP variable that contains data from a form sent with method="post".

$_SESSION $_GET $_POST

if(isset($_POST["field"])) {
  echo $_POST["field"];
}

Ajax Course