Hooked properties cannot be readonly¶
Description¶
The readonly keyword is not allowed on hooked properties. On the other hand, it is possible to emulate that feature, by writing the set
method.
Example¶
<?php
class X {
public readonly string $x {
get => $this->x;
set { if (!isset($this->x)) $this->x = $value;}
}
}
?>
Solutions¶
Use the
set
hook to emulate readonly.Omit the readonly keyword.