The following article describes Anonymous Classes in PHP.
Basically, an anonymous class in PHP is a class that doesn’t have a name, and it can be created and instantiated in a single line of code. Anonymous classes are useful when you need to create a one-off instance of a class, for example, to pass to a function as an argument or to store in a variable.
Here’s an example of how to create and use an anonymous class in PHP:
<?php
$x=new class{
function f1()
{
echo 'Inside the function f1()...<br>';
}
};
$x->f1();
?>Output
Another example of using anonymous class in PHP is here. The following anonymous class contains function with name sayHello. Actually, this function returns a string “Hello, World!”. Further, in the script we can the method using an instance of the anonymous class. So, it displays the above string.
<?php
// Create an anonymous class that implements the 'HelloWorld' interface
$helloWorld = new class implements HelloWorld {
public function sayHello() {
return "Hello World!";
}
};
// Use the anonymous class
echo $helloWorld->sayHello(); // Outputs: "Hello World!"
?>As can be seen in the example, the anonymous class implements an interface called HelloWorld. Also, it has a single method sayHello(). As a result, an instance of this class is created and stored in the $helloWorld variable, which can then be used to call the sayHello() method.
Also, note that anonymous classes are only available in PHP 7 or later.
Further Reading
Examples of Array Functions in PHP
Registration Form Using PDO in PHP
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