How do PHP functions return objects?

PHP functions can encapsulate data into a custom structure by returning an object using a return statement followed by an object instance. Syntax: function get_object(): object {}. This allows creating objects with custom properties and methods and processing data in the form of objects.

How PHP functions return objects

In PHP, functions can return objects, which provides the ability to encapsulate data into custom Structure and methods to handle it as an object.

Method:

To return an object, use the return statement followed by the object instance to be returned.

Syntax:

function get_object(): object {
    return new stdClass();
}

Practical case:

Consider the following function, which returns a function with name# Simple object with ## and age properties:

function create_person(): object {
    $person = new stdClass();
    $person->name = "John Doe";
    $person->age = 30;
    return $person;
}

Use this function:

$person = create_person();
echo $person->name . " is " . $person->age . " years old.";

Output:

John Doe is 30 years old.

Notes:

Ensure that the returned object type matches the type specified in the function declaration.
• Use the
• instanceof operator to verify the returned object type.
If a function may return
• null, use the ? type tag and handle null values ​​accordingly.

The above is the detailed content of How do PHP functions return objects?. For more information, please follow other related articles on the PHP Chinese website!