$re = '~(?<=^|\v)
\h*+\*\h*+
(?:
(?:
(?P<annotation>
@(?P<name>\w++)
(?:
(?<=@param)\h++(?P<type>\w++(?:\[\])?)\h++\$(?P<variable>\w++)
|(?<=@return)\h++(?P<type>\w++(?:\[\])?)
|(?<=@throws)\h++(?P<class>\w++)
|(?<=@cache)\h++(?P<time>\d++)
|(?<=@roles)\h++(?P<roles>\w++(?:\h*+,\h*+\w++)*)
)?
)
)
(?P<comment>\h++[^\v]++)?
(?:(?P<comment>\v)\h*+\*\h*+(?P<comment>[^\v@\h\*][^\v]++))*+
|(?P<description>(?:[^\v@\h\*][^\v]++)
(?:
\v\h*+\*\h*+[^\v@\h\*][^\v]++
)*+
)
) ~xsJ';
$str = '/**
* bla bla
*bla2 @ bla2 @
*
* bla bla 3
*
* @olivier voila
* @param string $sku1 bidule
*
* @param string[] $sku2
*
* @param string $sku3 toto bidule @
* machin truc
*
* @param string $sku4
* machin truc
*
* @deprecated
*
* @deprecated toto
*
* @throws Exception
* @throws Exception
* machin
* @return Cfe_Type_Product
* @cache 3600
* @roles toto, titi,truc , machin
*/';
preg_match_all($re, $str, $matches, PREG_SET_ORDER, 0);
// Print the entire match result
var_dump($matches);
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for PHP, please visit: http://php.net/manual/en/ref.pcre.php