php正则提取字符并转化成数组形式

{"div_class":"deal","pinpai_link":""},{"div_class":"deal","pinpai_link":""}
需要把{}形式的匹配成数组。

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$text = '{"div_class":"deal","pinpai_link":""},{"div_class":"deal","pinpai_link":""}';
print_r( json_decode ( "[$text]", true ) );