PHP how to list out all public functions of class

Question

I've heard of get_class_methods() but is there a way in PHP to gather an array of all of the public methods from a particular class?

Answer 1

Yes you can, take a look at the reflection classes / methods.

http://php.net/manual/en/book.reflection.php and http://www.php.net/manual/en/reflectionclass.getmethods.php

$class = new ReflectionClass('Apple');
$methods = $class->getMethods(ReflectionMethod::IS_PUBLIC);
var_dump($methods);

Answer 2

As get_class_methods() is scope-sensitive, you can get all the public methods of a class just by calling the function from outside the class' scope:

So, take this class:

class Foo {
    private function bar() {
        var_dump(get_class_methods($this));
    }

    public function baz() {}

    public function __construct() {
        $this->bar();
    }
}

var_dump(get_class_methods('Foo')); will output the following:

array
  0 => string 'baz' (length=3)
  1 => string '__construct' (length=11)

While a call from inside the scope of the class (new Foo;) would return:

array
  0 => string 'bar' (length=3)
  1 => string 'baz' (length=3)
  2 => string '__construct' (length=11)

Answer 3

After getting all the methods with get_class_methods($theClass) you can loop through them with something like this:

foreach ($methods as $method) {
    $reflect = new ReflectionMethod($theClass, $method);
    if ($reflect->isPublic()) {
    }
}