Add new property to object php

In PHP, you can add a new property to an object using the following methods:

Dynamic property: You can add a new property to an object using the -> operator. For example:
```
class Person {
 public $name;
}
```

$person = new Person(); $person->age = 30; // adds a new property "age" with value 30

This method is known as dynamic property, because the property is created on the fly.

2. **__set() method**: You can also add a new property to an object by overriding the `__set()` method in the class. This method is called when you try to set a property that does not exist. For example:
```php
class Person {
    private $name;

    public function __set($property, $value) {
        $this->$property = $value;
    }
}

$person = new Person();
$person->age = 30; // calls __set() method and adds a new property "age" with value 30

Reflection: You can also add a new property to an object using the ReflectionClass and ReflectionProperty classes. For example:
```
$person = new Person();
$reflectionClass = new ReflectionClass($person);
$property = $reflectionClass->getProperty('age');
$property->setAccessible(true);
$property->setValue($person, 30);
```
Note that the __set() method and the Reflection approach are more flexible and powerful, as they allow you to add properties with custom logic and validation.

It's also important to note that when you add a new property to an object, it will not be serialized (i.e., saved to a file or database) unless you explicitly define it in the class or use a serialization mechanism like json_encode() or serialize().

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Add new property to object php