PHP Error: Expected T_PAAMAYIM_NEKUDOTAYIM — What Does It Mean?

Hi everyone! I'm a beginner in PHP and trying to understand classes. I'm writing a simple script, but I get an error: "Parse error: syntax error, unexpected '::' (T_PAAMAYIM_NEKUDOTAYIM)". Here's my code: ```php class User { public $name = "Guest"; public function greet() { return "Hello, " . $this->name; } } $user = new User(); echo $user->greet(); // But here I want to call the method without creating an object echo User::greet(); ``` I thought that using `::` you can call class methods, like in other languages. But the interpreter complains. What am I doing wrong? Why doesn't PHP understand this syntax? And what does this strange word "T_PAAMAYIM_NEKUDOTAYIM" even mean? I googled it, but there's little information in Russian. Please help me figure it out. Maybe I declared the method incorrectly or need to write something special? Thanks in advance! <<>>

What is T_PAAMAYIM_NEKUDOTAYIM?

This is a PHP token that denotes the scope resolution operator

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