fbsql_fetch_assoc
fbsql_fetch_lengths
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PHP Manual

# fbsql_fetch_field

(PHP 4 >= 4.0.6, PHP 5)

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

### 설명

object fbsql_fetch_field ( resource `$result` [, int `$field_offset` ] )

Used in order to obtain information about fields in a certain query result.

### 인수

`result`

  fbsql_query()나 fbsql_db_query()가 반환한 결과셋 식별자.

`field_offset`

  The numerical offset of the field. The field index starts at 0. If not specified, the next field that wasn't yet retrieved by fbsql_fetch_field() is retrieved.

### 반환값

Returns an object containing field information, or `FALSE` on errors.

The properties of the object are:

- name - column name
- table - name of the table the column belongs to
- max_length - maximum length of the column
- not_null - 1 if the column cannot be `NULL`
- type - the type of the column

### 예제

Example #1 fbsql_fetch_field() example

`<?php
fbsql_connect($host, $user, $password)
or die("Could not connect");
$result = fbsql_db_query("database", "select * from table")
or die("Query failed");
# get column metadata
$i = 0;
while ($i < fbsql_num_fields($result)) {
echo "Information for column $i:<br />\n";
$meta = fbsql_fetch_field($result);
if (!$meta) {
echo "No information available<br />\n";
}
echo "<pre>
max_length: $meta->max_length
name: $meta->name
not_null: $meta->not_null
table: $meta->table
type: $meta->type
</pre>";
$i++;
}
fbsql_free_result($result);
?>`

### 참고

- fbsql_field_seek() - Set result pointer to a specified field offset

fbsql_fetch_assoc
fbsql_fetch_lengths
FrontBase 함수 목록
PHP Manual