By far the easiest and correct way to instantiate an empty generic php object that you can then modify for whatever purpose you choose:

<?php $genericObject = new stdClass(); ?>

I had the most difficult time finding this, hopefully it will help someone else!

In PHP 7 there are a few ways to create an empty object:<?php$obj1 = new \stdClass; // Instantiate stdClass object$obj2 = new class{}; // Instantiate anonymous class$obj3 = (object)[]; // Cast empty array to objectvar_dump($obj1); // object(stdClass)#1 (0) {}var_dump($obj2); // object(class@anonymous)#2 (0) {}var_dump($obj3); // object(stdClass)#3 (0) {}?>$obj1 and $obj3 are the same type, but $obj1 !== $obj3. Also, all three will json_encode() to a simple JS object {}:<?phpecho json_encode([    new \stdClass,    new class{},    (object)[],]);?>Outputs: [{},{},{}]

As of PHP 5.4, we can create stdClass objects with some properties and values using the more beautiful form:<?php  $object = (object) [    'propertyOne' => 'foo',    'propertyTwo' => 42,  ];?>

Here a new updated version of 'stdObject' class. It's very useful when extends to controller on MVC design pattern, user can create it's own class.Hope it help you. <?phpclass stdObject {    public function __construct(array $arguments = array()) {        if (!empty($arguments)) {            foreach ($arguments as $property => $argument) {                $this->{$property} = $argument;            }        }    }    public function __call($method, $arguments) {        $arguments = array_merge(array("stdObject" => $this), $arguments); // Note: method argument 0 will always referred to the main class ($this).        if (isset($this->{$method}) && is_callable($this->{$method})) {            return call_user_func_array($this->{$method}, $arguments);        } else {            throw new Exception("Fatal error: Call to undefined method stdObject::{$method}()");        }    }}// Usage.$obj = new stdObject();$obj->name = "Nick";$obj->surname = "Doe";$obj->age = 20;$obj->adresse = null;$obj->getInfo = function($stdObject) { // $stdObject referred to this object (stdObject).    echo $stdObject->name . " " . $stdObject->surname . " have " . $stdObject->age . " yrs old. And live in " . $stdObject->adresse;};$func = "setAge";$obj->{$func} = function($stdObject, $age) { // $age is the first parameter passed when calling this method.    $stdObject->age = $age;};$obj->setAge(24); // Parameter value 24 is passing to the $age argument in method 'setAge()'.// Create dynamic method. Here i'm generating getter and setter dynimically// Beware: Method name are case sensitive.foreach ($obj as $func_name => $value) {    if (!$value instanceOf Closure) {        $obj->{"set" . ucfirst($func_name)} = function($stdObject, $value) use ($func_name) {  // Note: you can also use keyword 'use' to bind parent variables.            $stdObject->{$func_name} = $value;        };        $obj->{"get" . ucfirst($func_name)} = function($stdObject) use ($func_name) {  // Note: you can also use keyword 'use' to bind parent variables.            return $stdObject->{$func_name};        };    }}$obj->setName("John");$obj->setAdresse("Boston");$obj->getInfo();?>

<!--Example shows how to convert array to stdClass Object and how to access its value for display --><?php $num = array("Garha","sitamarhi","canada","patna"); //create an array$obj = (object)$num; //change array to stdClass object echo "<pre>";print_r($obj); //stdClass Object created by casting of array $newobj = new stdClass();//create a new $newobj->name = "India";$newobj->work = "Development";$newobj->address="patna";$new = (array)$newobj;//convert stdClass to arrayecho "<pre>";print_r($new); //print new object##How deals with Associative Array$test = [Details=>['name','roll number','college','mobile'],values=>['Naman Kumar','100790310868','Pune college','9988707202']];$val = json_decode(json_encode($test),false);//convert array into stdClass objectecho "<pre>";print_r($val);echo ((is_array($val) == true ?  1 : 0 ) == 1 ? "array" : "not an array" )."</br>"; // check whether it is array or notecho ((is_object($val) == true ?  1 : 0 ) == 1 ? "object" : "not an object" );//check whether it is object or not ?>

Do you remember some JavaScript implementations?// var timestamp = (new Date).getTime();Now it's possible with PHP 5.4.*;<?phpclass Foo{    public $a = "I'm a!";    public $b = "I'm b!";    public $c;        public function getB() {        return $this->b;    }        public function setC($c) {        $this->c = $c;        return $this;    }        public function getC() {        return $this->c;    }}print (new Foo)->a;      // I'm a!print (new Foo)->getB(); // I'm b!?>or<?php// $_GET["c"] = "I'm c!";print (new Foo)       ->setC($_GET["c"])       ->getC(); // I'm c!?>

You can create [recursive] objects with something like:<?php  $literalObjectDeclared = (object) array(     'foo' => (object) array(          'bar' => 'baz',          'pax' => 'vax'      ),      'moo' => 'ui'   );print $literalObjectDeclared->foo->bar; // outputs "baz"!?>

In response to harmor: if an array contains another array as a value, you can recursively convert all arrays with:<?phpfunction arrayToObject( $array ){  foreach( $array as $key => $value ){    if( is_array( $value ) ) $array[ $key ] = arrayToObject( $value );  }  return (object) $array;}?>