pg_fetch_array

(PHP 4, PHP 5, PHP 7, PHP 8)

pg_fetch_array — Fetch a row as an array

Açıklama

pg_fetch_array(PgSql\Result $result, ?int $row = null, int $mode = PGSQL_BOTH): array|false

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 indices by default.

Bilginize: Bu işlev NULL alanlara PHP null değerini atar.

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

Bağımsız Değişkenler

result: pg_query(), pg_query_params() veya pg_execute() işlevinden dönen PgSql\Result nesnesi.
row: Row number in result to fetch. Rows are numbered from 0 upwards. If omitted or null, the next row is fetched.
mode: Dizinin nasıl indisleneceğini belirleyen seçimlik bağımsız değişken. kip bir sabit olup şu değerleri alabilir: PGSQL_ASSOC, PGSQL_NUM ve PGSQL_BOTH. PGSQL_NUM ile işlev sayısal indisli bir dizi, PGSQL_ASSOC ile ilişkisel bir dizi ve PGSQL_BOTH ile hem sayısal hem de ilişkisel indisli bir dizi döndürür.

Dönen Değerler

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. Fetching from the result of a query other than SELECT will also return false.

Sürüm Bilgisi

Sürüm:	Açıklama
8.1.0	`sonuç` bağımsız değişkeni artık PgSql\Result nesnesi kabul ediyor, evvelce bir özkaynak kabul ederdi.

Örnekler

Örnek 1 pg_fetch_array() example

<?php 

$conn = pg_pconnect("dbname=publisher");
if (!$conn) {
  echo "An error occurred.\n";
  exit;
}

$result = pg_query($conn, "SELECT author, email FROM authors");
if (!$result) {
  echo "An error occurred.\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";

// 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";

?>

Ayrıca Bakınız

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 instance