Get php doc block annotations data(could be used alongside reflection to get return types etc)

annotation_example.php

<?php

class SomethingElse
{

}

class Something
{

	/**
	 * @return SomethingElse
	 */
	public function somethingElse()
	{
		return new SomethingElse();
	}

}

$class  = new ReflectionClass(Something::class);
$method = $class->getMethod('somethingElse');


$result = preg_match_all(
	'~\@([^\s@\(]+)[\t ]*(?:\(?([^\n@]+)\)?)?~i',
	$method->getDocComment(),
	$methodAnnotations,
	PREG_PATTERN_ORDER
);


class AnnotationData
{
	public function __construct(
		/**
		 * @var string $value | The value in the annotation, for ``@return string``, this would be "string"
		 */
		public string $value,
		/**
		 * @var string $key | "var", "return" etc
		 */
		public string $key,
	) {

	}
}

$annotations = [];
foreach ($methodAnnotations[0] as $key => $annotation) {
	$annotations[] = new AnnotationData(
		$methodAnnotations[1][$key],
		$methodAnnotations[2][$key]
	);
}