Login function My_connect ($arr) {$host =isset ($arr [' Host '])? $arr [' Host ']: ' localhost '; $port =isset ($arr [' Port '])? $ arr[' Port ': ' 3306 '; $user =isset ($arr [' user '])? $arr [' User ']: ' Root '; $pass =isset ($arr [' pwd '])? $arr [' pwd ']: '; [Email protected] mysql_connect ("$host: $port", $user, $pass); if (! $link) {echo ' Database connection failed!
'; Echo ' ERROR statement is: ', $sql; Echo ' ERROR number is: ', Mysql_errno (); echo "error message is:", mysql_error ();d ie;}} Execute SQL statement judgment function My_query ($sql) {$result =mysql_query ($sql), if (! $result) {echo] SQL statement execution failed! "; Echo ' ERROR statement is: ', $sql; echo" error code: ", Mysql_errno (); echo" error message: ", mysql_error ();d ie;} return $result;} Set character Set function My_charset ($charset) {$sql = "set names $charset"; My_query ($sql);} Select Database function my_db ($db _name) {$sql = "use $db _name"; My_query ($sql);}
PHP Connection Database