object

<?php
class foo
{
    function do_foo()
    {
        echo "Doing foo."; 
    }
}

$bar = new foo;
$bar->do_foo();
?>

To create a new object, use the new statement to instantiate a class.

<?php
$obj = (object) array('1' => 'foo');
var_dump(isset($obj->{'1'})); // outputs 'bool(true)' as of PHP 7.2.0; 'bool(false)' previously
var_dump(key($obj)); // outputs 'string(1) "1"' as of PHP 7.2.0; 'int(1)' previously
?>

• If an object is converted to an object, it is not modified.
• If a value of any other type is converted to an object, a new instance of the stdClass built-in class is created.
• If the value was NULL, the new instance will be empty.
• An array converts to an object with properties named by keys and corresponding values.
  Note that in this case before PHP 7.2.0 numeric keys have been inaccessible unless iterated.
• For any other value, a member variable named scalar will contain the value.

  <?php
  $obj = (object) 'ciao';
  echo $obj->scalar;  // outputs 'ciao'
  ?>