Are there pointers in php?

Question

What does this code mean? Is this how you declare a pointer in php?

$this->entryId = $entryId;

Answer 1

PHP can use something like pointers:

$y=array(&$x);

Now $y acts like a pointer to $x and $y[0] dereferences a pointer.

The value array(&$x) is just a value, so it can be passed to functions, stored in other arrays, copied to other variables, etc. You can even create a pointer to this pointer variable. (Serializing it will break the pointer, however.)