Why this match is wrong, the regular expression puzzle, how to handle

Why this match is wrong, the regular expression puzzle

$txt = "[face= ' blackbody ']12345[/face][face= ' blackbody '] haha [/face]";
$return =preg_match_all ("/\[face=" (. *) '] (. +?) \[\/face]/", $txt, $tar);
echo "

";
Print_r ($tar);
?>

My match means the  shortest string with [/face] ending with [face= ' any number '] ...

What's wrong???

Any number here seems to be ruled out [/face]

Array
(
     [0] = = Array
         (
             [0] = [face= ' blackbody ']12345[/face][face= ' blackbody '] haha [/face]
         )

     [1] = = Array
         (
             [0] = black blackbody ']12345[/face][face= ' blackbody
         )

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

)

The result is wrong, matching the longest string, halo

------Solution--------------------
.../\[face= ' (. *) '] ...   .. = ...  /\[face= ' (. *?) '] ......

No, it's greed, and it turns out like you're sticking it.
------Solution--------------------
/\[face= ' (. *) '] (. +?) \[\/face]/u   plus a U can also.
