To chain a static and a public method through class name, for example:
className::staticMethod()->publicMethod()
The instance of the className must be returned in the staticMethod, using "return new self" .
- Code example:
<?php
class clsShow {
  public static $url;

  public static function setData(){
    self::$url = 'http://coursesweb.net/';
    return new self;
  }

  public function show(){
    echo self::$url;
  }
}

// accessing show() method after setData()
clsShow::setData()->show();             // http://coursesweb.net/

• To this page: PHP Method Chaining it is a lesson with more details and examples about chaining multiple methods.

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
Chaining Static and Public Methods in PHP

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