__set in php

In PHP, __set is a magic method that is called when an undefined or inaccessible property is being set. It allows the developer to define custom behavior for setting the value of a property.

The __set method has two parameters: $name, which is the name of the property being set, and $value, which is the value to be assigned to the property.

Here is an example of how to use __set in PHP:

class MyClass {
    private $data = [];

    public function __set($name, $value) {
        $this->data[$name] = $value;
    }

    public function __get($name) {
        return $this->data[$name];
    }
}

$obj = new MyClass();
$obj->property = 'some value'; // calls __set method
echo $obj->property; // calls __get method and outputs 'some value'

In the example above, the __set method sets the value of the property to an associative array $data, and the __get method retrieves the value of the property from the $data array.

It's important to note that __set is only called when trying to set an undefined or inaccessible property. If the property is already defined, its value will be updated without calling the __set method.