Notice:  Undefined variable: str in /website/www.xiaodo.com/lib/mysql.func.php on line 24Notice:  Undefined variable: str in /website/www.xiaodo.com/lib/mysql.func.php on line 29//function update($table,$array,$where=null){ foreach($array as $key=>$val){ if($str==null){ $sep=""; }else{ $sep=","; } $str.=$sep.$key."='".$val."'"; } $sql="update {$table} set {$str} ".($where==null?null:" where ".$where); $result=mysql_query($sql); //var_dump($result); //var_dump(mysql_affected_rows());exit; if($result){ return mysql_affected_rows(); }else{ return false; }}