Php/docs/function.cubrid-fetch-field

• PHP Manual
• CUBRID MySQL 兼容性函数
• Get column information from a result and return as an object

cubrid_fetch_field

(PECL CUBRID >= 8.3.1)

cubrid_fetch_field — Get column information from a result and return as an object

说明

cubrid_fetch_field ( resource $result [, int $field_offset = 0 ] ) : object

This function returns an object with certain properties of the specific column. The properties of the object are:

name

column name

table

name of the table that the column belongs to

def

default value of the column

max_length

maximum length of the column

not_null

1 if the column cannot be NULL

primary_key

1 if the column is a primary key

unique_key

1 if the column is an unique key

multiple_key

1 if the column is a non-unique key

numeric

1 if the column is numeric

blob

1 if the column is a BLOB

type

the type of the column

unsigned

1 if the column is unsigned

zerofill

1 if the column is zero-filled

参数

result

result comes from a call to cubrid_execute()

field_offset

The numerical field offset. If the field offset is not specified, the next field (that was not yet retrieved by this function) is retrieved. The field_offset starts at 0.

返回值

Object with certain properties of the specific column, when process is successful.

false on failure.

范例

Example #1 cubrid_fetch_field() example

<?php$conn = cubrid_connect("localhost", 33000, "demodb");$req = cubrid_execute($conn, "SELECT event_code,athlete_code,nation_code,game_date FROM game WHERE host_year=1988 and event_code=20001;");var_dump(cubrid_fetch_row($req));cubrid_field_seek($req, 1);$field = cubrid_fetch_field($req);printf("\n--- Field Properties ---\n");printf("%-30s %s\n", "name:", $field->name);printf("%-30s %s\n", "table:", $field->table);printf("%-30s \"%s\"\n", "default value:", $field->def);printf("%-30s %d\n", "max length:", $field->max_length);printf("%-30s %d\n", "not null:", $field->not_null);printf("%-30s %d\n", "primary key:", $field->primary_key);printf("%-30s %d\n", "unique key:", $field->unique_key);printf("%-30s %d\n", "multiple key:", $field->multiple_key);printf("%-30s %d\n", "numeric:", $field->numeric);printf("%-30s %d\n", "blob:", $field->blob);printf("%-30s %s\n", "type:", $field->type);printf("%-30s %d\n", "unsigned:", $field->unsigned);printf("%-30s %d\n", "zerofill:", $field->zerofill);cubrid_close_request($req);cubrid_disconnect($conn);?>

以上例程会输出：

array(4) {
  [0]=>
  string(5) "20001"
  [1]=>
  string(5) "16681"
  [2]=>
  string(3) "KOR"
  [3]=>
  string(9) "1988-9-30"
}

--- Field Properties ---
name:                          athlete_code
table:                         game
default value:                 ""
max length:                    0
not null:                      1
primary key:                   1
unique key:                    1
multiple key:                  0
numeric:                       1
blob:                          0
type:                          integer
unsigned:                      0
zerofill:                      0