pg_fetch_all
pg_fetch_assoc
PostgreSQL 함수 목록
PHP Manual

# pg_fetch_array

(PHP 4, PHP 5)

pg_fetch_array — Fetch a row as an array

### 설명

array pg_fetch_array ( resource `$result` [, int `$row` [, int `$result_type` ]] )

pg_fetch_array() returns an array that corresponds to the fetched row (record).

pg_fetch_array() is an extended version of pg_fetch_row(). In addition to storing the data in the numeric indices (field number) to the result array, it can also store the data using associative indices (field name). It stores both indicies by default.

> Note: 이 함수는 NULL 필드를 PHP `NULL` 값으로 설정합니다.

pg_fetch_array() is NOT significantly slower than using pg_fetch_row(), and is significantly easier to use.

### 인수

`result`

  PostgreSQL query result resource, returned by pg_query(), pg_query_params() or pg_execute() (among others).

`row`

  Row number in result to fetch. Rows are numbered from 0 upwards. If omitted, next row is fetched.

`result_type`

  An optional parameter that controls how the returned array is indexed. `result_type` is a constant and can take the following values: `PGSQL_ASSOC`, `PGSQL_NUM` and `PGSQL_BOTH`. Using `PGSQL_NUM`, pg_fetch_array() will return an array with numerical indices, using `PGSQL_ASSOC` it will return only associative indices while `PGSQL_BOTH`, the default, will return both numerical and associative indices.

### 반환값

An array indexed numerically (beginning with 0) or associatively (indexed by field name), or both. Each value in the array is represented as a string. Database NULL values are returned as `NULL`.

`FALSE` is returned if `row` exceeds the number of rows in the set, there are no more rows, or on any other error.

### 변경점

버전 | 설명
--- | ---
4.1.0 | The `row` parameter became optional.
4.0.0 | The `result_type` parameter was added.

### 예제

Example #1 pg_fetch_array() example

`<?php
$conn = pg_pconnect("dbname=publisher");
if (!$conn) {
echo "An error occured.\n";
exit;
}
$result = pg_query($conn, "SELECT author, email FROM authors");
if (!$result) {
echo "An error occured.\n";
exit;
}
$arr = pg_fetch_array($result, 0, PGSQL_NUM);
echo $arr[0] . " <- Row 1 Author\n";
echo $arr[1] . " <- Row 1 E-mail\n";
// As of PHP 4.1.0, the row parameter is optional; NULL can be passed instead,
// to pass a result_type. Successive calls to pg_fetch_array will return the
// next row.
$arr = pg_fetch_array($result, NULL, PGSQL_ASSOC);
echo $arr["author"] . " <- Row 2 Author\n";
echo $arr["email"] . " <- Row 2 E-mail\n";
$arr = pg_fetch_array($result);
echo $arr["author"] . " <- Row 3 Author\n";
echo $arr[1] . " <- Row 3 E-mail\n";
?>`

### 참고

- pg_fetch_row() - Get a row as an enumerated array
- pg_fetch_object() - Fetch a row as an object
- pg_fetch_result() - Returns values from a result resource

pg_fetch_all
pg_fetch_assoc
PostgreSQL 함수 목록
PHP Manual