calling class method (with constructors) without object instantiation in php

Question

Ive looked and tried but I can\'t find an answer.

In PHP, is it possible to call a class\' member function (when that class requires a constructor to receive parame

Answer 1

You can't call an instance-level method without an instance. Your syntax:

echo Test("world")::alert("hello");

doesn't make a lot of sense. Either you're creating an inline instance and discarding it immediately or the alert() method has no implicit this instance.

Assuming:

class Test {
  public function __construct($message) {
    $this->message = $message;
  }

  public function foo($message) {
    echo "$this->message $message";
  }
}

you can do:

$t = new Test("Hello");
$t->foo("world");

but PHP syntax doesn't allow:

new Test("Hello")->foo("world");

which would otherwise be the equivalent. There are a few examples of this in PHP (eg using array indexing on a function return). That's just the way it is.