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maxdb_fetch_fields - Returns an array of resources representing the fields in a result set
Вернуться к: MaxDB Функции
maxdb_fetch_fields
maxdb_result::fetch_fields
(PECL maxdb >= 1.0)
maxdb_fetch_fields -- maxdb_result::fetch_fields — Returns an array of resources representing the fields in a result set
Описание
Процедурный стиль
Объектно-ориентированный стиль
This function serves an identical purpose to the maxdb_fetch_field() function with the single difference that, instead of returning one resource at a time for each field, the columns are returned as an array of resources.
Возвращаемые значения
Returns an array of resources which contains field definition information or FALSE if no field information
is available.
| Property | Description |
|---|---|
| name | The name of the column |
| max_length | The maximum width of the field for the result set. |
| type | The data type used for this field |
| decimals | The number of decimals used (for integer fields) |
Примеры
Пример #1 Объектно-ориентированный стиль
<?php
$maxdb = new maxdb("localhost", "MONA", "RED", "DEMODB");
/* check connection */
if (maxdb_connect_errno()) {
printf("Connect failed: %s\n", maxdb_connect_error());
exit();
}
$query = "SELECT name, cno from hotel.customer ORDER BY cno";
if ($result = $maxdb->query($query)) {
/* Get field information for all columns */
$finfo = $result->fetch_fields();
foreach ($finfo as $val) {
printf("Name: %s\n", $val->name);
printf("Table: %s\n", $val->table);
printf("max. Len: %d\n", $val->max_length);
printf("Flags: %d\n", $val->flags);
printf("Type: %d\n\n", $val->type);
}
$result->close();
}
/* close connection */
$maxdb->close();
?>
Пример #2 Процедурный стиль
<?php
$link = maxdb_connect("localhost", "MONA", "RED", "DEMODB");
/* check connection */
if (maxdb_connect_errno()) {
printf("Connect failed: %s\n", maxdb_connect_error());
exit();
}
$query = "SELECT name, cno from hotel.customer ORDER BY cno";
if ($result = maxdb_query($link, $query)) {
/* Get field information for all columns */
$finfo = maxdb_fetch_fields($result);
foreach ($finfo as $val) {
printf("Name: %s\n", $val->name);
printf("Table: %s\n", $val->table);
printf("max. Len: %d\n", $val->max_length);
printf("Flags: %d\n", $val->flags);
printf("Type: %d\n\n", $val->type);
}
maxdb_free_result($result);
}
/* close connection */
maxdb_close($link);
?>
Результатом выполнения данного примера будет что-то подобное:
Name: NAME Table: max. Len: 10 Flags: -1 Type: 2 Name: CNO Table: max. Len: 4 Flags: -1 Type: 0
Смотрите также
- maxdb_num_fields() - Get the number of fields in a result
- maxdb_fetch_field() - Returns the next field in the result set
- maxdb_fetch_field_direct() - Fetch meta-data for a single field
Вернуться к: MaxDB Функции