php: get variable type hint using reflection

Question

class Expense {

    /**
     * @var int
     */
    private $id;
}

I would like to obtain the type hint of a variable in my class, using reflection, because the default value is null.

Answer 1

Try:

<?php
class Expense {

    /**
     * @var int
     */
    private $id;
}

$refClass = new ReflectionClass('Expense');
foreach ($refClass->getProperties() as $refProperty) {
    if (preg_match('/@var\s+([^\s]+)/', $refProperty->getDocComment(), $matches)) {
        list(, $type) = $matches;
        var_dump($type);
    }
}

Output:

string(3) "int"