mysql performance for php calls -

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i have multiple php functions code , each function tries setup mysql connection, send queries , closes mysql connection. design or should set 1 connection master function , pass variables each of these functions execute queries?

also, possible code give errors when trying execute 2nd instance of mysql_query in func1() ? won't instance of mysql connection called in func2 independent instance called in func1? in code, seem inconsistent behaviors. @ times, getting error when refresh page, there seems no problem. suggestions welcome. thanks.

def func1() {  mysql_connect(params)  mysql_query()  func2()  mysql_query()  mysql_close()  }   def func2() {  mysql_connect(params)  mysql_query()  mysql_close()  }

i can't it's awful performance hit, has no sense.
database connection intended opened once.
if need 5 apples box - open , close box 5 times? or open , @ once? ;-)
same here.

just open connection once , never close it. done automatically.


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