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    <h3>Editing: PropertyTypeMatcher.php</h3>
    <textarea name="content" rows="20" cols="80">&lt;?php

namespace DeepCopy\Matcher;

use DeepCopy\Reflection\ReflectionHelper;
use ReflectionException;

/**
 * Matches a property by its type.
 *
 * It is recommended to use {@see DeepCopy\TypeFilter\TypeFilter} instead, as it applies on all occurrences
 * of given type in copied context (eg. array elements), not just on object properties.
 *
 * @final
 */
class PropertyTypeMatcher implements Matcher
{
    /**
     * @var string
     */
    private $propertyType;

    /**
     * @param string $propertyType Property type
     */
    public function __construct($propertyType)
    {
        $this-&gt;propertyType = $propertyType;
    }

    /**
     * {@inheritdoc}
     */
    public function matches($object, $property)
    {
        try {
            $reflectionProperty = ReflectionHelper::getProperty($object, $property);
        } catch (ReflectionException $exception) {
            return false;
        }

        $reflectionProperty-&gt;setAccessible(true);

        // Uninitialized properties (for PHP &gt;7.4)
        if (method_exists($reflectionProperty, 'isInitialized') &amp;&amp; !$reflectionProperty-&gt;isInitialized($object)) {
            // null instanceof $this-&gt;propertyType
            return false;
        }

        return $reflectionProperty-&gt;getValue($object) instanceof $this-&gt;propertyType;
    }
}
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