- Here you can find some useful PHP classes that are free on the net, and helpful for PHP Web Developers, to create and add easily various elements in your web site.

Daily Test with Code Example

HTML
CSS
JavaScript
PHP-MySQL
Which tag is used to add lists into <ul> and <ol> elements?
<dt> <dd> <li>
<ul>
 <li>http://coursesweb.net/html/</li>
 <li>http://coursesweb.net/css/</li>
</ul>
Which value of the "display" property creates a block box for the content and ads a bullet marker?
block list-item inline-block
.some_class {
  display: list-item;
}
Which instruction converts a JavaScript object into a JSON string.
JSON.parse() JSON.stringify eval()
var obj = {
 "courses": ["php", "javascript", "ajax"]
};
var jsonstr = JSON.stringify(obj);
alert(jsonstr);    // {"courses":["php","javascript","ajax"]}
Indicate the PHP class used to work with HTML and XML content in PHP.
stdClass PDO DOMDocument
$strhtml = '<body><div id="dv1">CoursesWeb.net</div></body>';
$dochtml = new DOMDocument();
$dochtml->loadHTML($strhtml);
$elm = $dochtml->getElementById("dv1");
echo $elm->nodeValue;    // CoursesWeb.net
Useful PHP Classes

Last accessed pages

  1. Selection Tools (5396)
  2. JavaScript code and PHP (27208)
  3. Add Pause in JavaScript script (12799)
  4. SHA1 Encrypt data in JavaScript (15187)
  5. querySelector and querySelectorAll (13426)

Popular pages this month

  1. Making DIV Contents Scroll Horizontally, with multiple Div`s inside (2003)
  2. Contact page - CoursesWeb (1946)
  3. Tabs effect with CSS (1945)
  4. Courses Web: PHP-MySQL JavaScript Node.js Ajax HTML CSS (618)
  5. Insert, Select and Update NULL value in MySQL (490)