Questions about PHP intercept Chinese characters

PHP Intercept Chinese characters problem
Unicom ADSL, Chongwen District, Peking City

I want to start with the city, to intercept the previous two Chinese characters, how to write?

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------Solution--------------------

$s = "Great Wall broadband in Shenzhen, Guangdong province";
Preg_match_all ('/(. +?) (Province
------Solution--------------------
City
------Solution--------------------
$)/', $s, $r);
$r = Array_combine ($r [2], $r [1]);
Print_r ($R);

Array
(
[Province] = Guangdong
[City] = Shenzhen
[] = Great Wall Broadband
)

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