Php Mysql Function

PHP MySQL 1. Close MySQL connection mysql_close($link); 2.

Connect MySQL mysql_connect(“IP address”, “user”, “password”); mysql_pconnect(IP address”, “user”, “password”);

3. Create new db $link = mysql_pconnect(); mysql_create_db(“test”,$link); 4.

Direct data and get data //mysql_data_seek() direct data //mysql_fetch_row() get data and direct to next record $link = mysql_pconnect(“localhost”,”admin”,”1234”); $mysql_select_db(“people”, $link); $result = mysql_query(“select * from male”, $link); mysql_data_seek($result, 0); list($name, $birthday) = mysql_fetch_row($result);

5. Free the memory mysql_free_result(resource result); 6.

List all table of the directly database mysql_list_tables(string database, resource[link_identifier]);

7. Return numbers field Int mysql_num_fields(resource result); 8. Return numbers row Int mysql_num_row(resource result); 9. Rum command mysql_query(string query, resource [ link_identiier]);

10. Connect to last database or directly database connection $link = mysql_pconnect(); Mysql_select_db(string database_name, resource [ link_identifier]); 11. Return record of last command (insert, update, delete) //If the command is delete and not has ‘where’ expression, it will return 0. Mysql_affected_rows(resource [link_identifier]); 12. Directly database run query mysql_db_query(string database, string query, resource [link_identifier]); //Notes: PHP 4.0.6 after please use mysql_select_db and mysql_query(). 13. Delete database Mysql_drop_db(string database_name, resource [link_identifier]); 14. Return error number Int mysql_errno(resource [link_identifier]); Example ”; ?> 15. Return error message string mysql_error(resource [link_identifire]); 16. Get data array mysql_fetch_array(resource result, int [result_type]); /* result_type MYSQL_ASSOC : associative array MYSQL_NUM : enumerated array MYSQL_BOTH : associative array and enumerated array */ Example

$rows = mysql_fetch_array($result,MYSQL_ASSOC); Echo $rows[‘name’]; $rows = mysql_fetch_array($result,MYSQL_NUM)l Echo $rows[1].$rows[2]; 17. Return database field info. Object mysql_fetch_field(resource result, int [field_offset]); Object properties Name explain table database name max_length max length of row not_null if that field is not accept null value, it will be return true(1) primary_key if that field is a primary key, it will be return true unique_key if that field is a unique key, it will be return true multiple_key if that field is not a unique key, it will be return true numeric if that field is number data type(int, float, double), it will be return true blob if that field is blob data type, it will be return true type ………. unsigned if that field is unsigned property, it will be return true zerofill if that field is zerofill property, it will be return true 18. Return length of last mysql_fetch_* function Array mysql_fetch_lengths(resource result); 19. Get data with object Object mysql_fetch_object(resource result, int [result_type]); //Result_type(MYSQL_ASSOC, MYSQL_NUM, MYSQL_BOTH) Example user_id;

echo $row->fullname; } 20. Return data with enumerated array Array mysql_fetch_row(resource result); //Notes: it will return a data pointer and go to next data field 21. Return data with associative array Array mysql_fetch_assoc(resource result); 22. Return field name String mysql_field_name(resource result, int field_index); //Notes: field_index present who number field. 23. Directly move pointer Int mysql_field_seek(resource result, int field_offset); //field_offset is a result position 24. Return table name String mysql_field_table(resource result, int field_offset); 25. Return data type with that field String mysql_field_type(resource result int field_offset); 26. Return field property String mysql_field_flags(resource result, int field_offset); Field property: Not_null, primary_key, unique_key, blob, unsigned, zerofill, binary Enum, auto_increment, timestamp 27. Return field length Int mysql_field_len(resource result, int field_offset); 28. Return before insert query of AUTO_INCREMENT field ID Int mysql_insert_id(resource [link_identifier]); 29. Return a double pointer of direct to data pointer

Resource mysql_list_fields(string database_name, string table_name, resource [link_identifier]); //Notes: if fail, it will return -1 30. Return a pointer of require can use database name Resource mysql_list_dbs(resource [link_identifier]); //Notes: use mysql_tablename() function to read a data. 31. Return a pointer of require database all table directly Resource mysql_list_tables(string database, resource [link_identifier]); //Notes: use mysql_tablename() function to read a data. 32. Get how fields of result Int mysql_num_fields(resource result); 33. Get how row of result Int mysql_num_rows(resource result); 34. Get result of one field Mixed mysql_result(resource result, int row, mixed field); //Notes: please use mysql_fetch_rows(), mysql_fetch_array(), mysql_fetch_object() function, there is faster mysql_result() function. 35. Run query but not this time Resource mysql_unbuffer_query(string query [resource link_identifier]); Example
$row = mysql_fetch_row($res2); //…break; Case “monitor”: $row = mysql_fetch_row($res3); //……break; Default: echo “Invalid search paramemter!”; break; }

36. Get table name String mysql_tablename(resource result, int i); Result = mysql_list_tables() i = table key Example ; $i++; } ?> 37. Process escaped character String mysql_escape_string(string unescaped_string); Notes: % and _ will not process 38. Get MySQL client library version String mysql_get_client_info( void); Example

39. Get MYSQL host name and connection type String mysql_get_host_info([resource link_identifier]); 40. Get MYSQL connection protocol Int mysql_get_proto_info([resource link_identifier]); 41. Get MYSQL server version Int mysql_get_server_info([resource link_identifier]);