Regex: zwischen 2 Strings "matchen"

[luke2]

Hilft leider auch nicht

PREG_PATTERN_ORDER

Code:

Array
(
    [0] => Array
        (
            [0] => bla<a href="#">a</a>,<a href="#">b</a>,<a href="#">c</a>blub
        )

    [1] => Array
        (
            [0] =>
        )

    [2] => Array
        (
            [0] =>
        )

)

PREG_SET_ORDER

Code:

Array
(
    [0] => Array
        (
            [0] => bla<a href="#">a</a>,<a href="#">b</a>,<a href="#">c</a>blub
        )

)

PREG_SET_ORDER | PREG_PATTERN_ORDER

Gibt die Meldung "Invalid flags specified".