Setting values to an object in PHP can be done using associative arrays or object properties. Associative arrays are used to store key-value pairs, while object properties are used to define specific properties of an object. Here's how to set values to an object using both methods.

Using Associative Arrays:

Associative arrays are a convenient way to set values to an object in PHP. You can define key-value pairs within the array and then assign it to an object. Here's an example:

```php

// Create an empty object

$person = new stdClass();

// Define key-value pairs

$person->name = 'John';

$person->age = 25;

$person->city = 'New York';

// Access the values

echo $person->name; // Output: John

echo $person->age; // Output: 25

echo $person->city; // Output: New York

```

Using Object Properties:

Object properties are another way to set values to an object in PHP. You can define the properties within the object class and then create an instance of that class to set the values. Here's an example:

```php

// Define the object class

class Person {

public $name;

public $age;

public $city;

}

// Create an instance of the class

$person = new Person();

// Set the values using object properties

$person->name = 'John';

$person->age = 25;

$person->city = 'New York';

// Access the values

echo $person->name; // Output: John

echo $person->age; // Output: 25

echo $person->city; // Output: New York

```

Both methods allow you to set values to an object in PHP. You can choose the method that best suits your programming style and needs. Associative arrays are more flexible and easier to work with, while object properties provide a more structured approach to defining object values.

In conclusion, setting values to an object in PHP can be achieved using associative arrays or object properties. Both methods offer their own advantages, so choose the one that fits your project requirements. Whether you prefer the flexibility of associative arrays or the structured approach of object properties, PHP provides you with the tools to effectively set values to objects in your code.