(PECL yaconf >= 1.0.0)
Yaconf::get — Retrieve a item
nameConfiguration key, the key looks like "filename.key", or "filename.sectionName,key".
default_valueif the key doesn't exists, Yaconf::get will return this as result.
Returns configuration result(string or array) if the key exists, return default_value if not.
示例 #1 INI()example
;filenmame foo.ini, placed in directory which is yaconf.directoy [SectionA] ;key value pair key=val ;hash[a]=val hash.a=val ;arr[0]=val arr.0=val ;or arr[]=val ;SectionB inherits SectionA [SectionB:SectionA] ;override configuration key in SectionA key=new_val
以上示例的输出类似于：
php7 -r 'var_dump(Yaconf::get("foo.SectionA.key"));'
//string(3) "val"
php7 -r 'var_dump(Yaconf::get("foo.SectionB.key"));'
//string(7) "new_val"
php7 -r 'var_dump(Yaconf::get("foo")["SectionA"]["hash"]);'
//array(1)