__call and __callStatic in PHP - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define the magic method that handles calls to undefined instance methods.

PHP

<?php
class Test {
    public function [1]($name, $arguments) {
        echo "Called method: $name";
    }
}
$test = new Test();
$test->hello();

Drag options to blanks, or click blank then click option'

A__get

B__callStatic

C__set

D__call

Attempts:

3 left

💡 Hint

Common Mistakes

Using __callStatic instead of __call for instance methods.

Confusing __call with property access magic methods like __get or __set.

The __call method is triggered when invoking inaccessible or undefined instance methods.

2fill in blank

medium

Complete the code to define the magic method that handles calls to undefined static methods.

PHP

<?php
class Test {
    public static function [1]($name, $arguments) {
        echo "Called static method: $name";
    }
}
Test::hello();

Drag options to blanks, or click blank then click option'

A__call

B__destruct

C__callStatic

D__invoke

Attempts:

3 left

💡 Hint

Common Mistakes

Using __call instead of __callStatic for static methods.

Confusing __callStatic with other magic methods like __invoke.

The __callStatic method is triggered when invoking inaccessible or undefined static methods.

3fill in blank

hard

Fix the error in the code by completing the magic method name that handles undefined instance method calls.

PHP

<?php
class Demo {
    public function [1]($method, $args) {
        echo "Method $method called with arguments: " . implode(', ', $args);
    }
}
$obj = new Demo();
$obj->test(1, 2);

Drag options to blanks, or click blank then click option'

A__call

B__callStatic

C__get

D__set

Attempts:

3 left

💡 Hint

Common Mistakes

Using __callStatic instead of __call for instance methods.

Forgetting the method must be public.

The magic method __call handles calls to undefined instance methods, receiving the method name and arguments.

4fill in blank

hard

Fill both blanks to complete the class that handles undefined instance and static method calls.

PHP

<?php
class Magic {
    public function [1]($name, $args) {
        echo "Instance method $name called.";
    }
    public static function [2]($name, $args) {
        echo "Static method $name called.";
    }
}
Magic::foo();
$magic = new Magic();
$magic->bar();

Drag options to blanks, or click blank then click option'

A__call

B__invoke

C__callStatic

D__get

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up __call and __callStatic.

Not declaring __callStatic as static.

__call handles undefined instance methods, and __callStatic handles undefined static methods.

5fill in blank

hard

Fill all three blanks to create a class that logs calls to undefined instance and static methods with method names and arguments.

PHP

<?php
class Logger {
    public function [1]($name, $args) {
        echo "Instance call: $name with args: " . implode(', ', $[2]) . "\n";
    }
    public static function [3]($name, $args) {
        echo "Static call: $name with args: " . implode(', ', $args) . "\n";
    }
}
$log = new Logger();
$log->run(5, 10);
Logger::start('a', 'b');

Drag options to blanks, or click blank then click option'

A__call

Bargs

C__callStatic

Darguments

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong variable name for arguments.

Confusing __call and __callStatic.

Not declaring __callStatic as static.

The __call method handles instance calls, using the args parameter for arguments. The __callStatic method handles static calls.