pg_fetch_result

    (PHP 4 >= 4.2.0, PHP 5, PHP 7, PHP 8)

    pg_fetch_result — Returns values from a result instance

    Açıklama

    pg_fetch_result(PgSql\Result$result, string|false|null$row, mixed$field): string|false|null
    pg_fetch_result(PgSql\Result$result, mixed$field): string|false|null

    pg_fetch_result() returns the value of a particular row and field (column) in an PgSql\Result instance.

    Bilginize:

    This function used to be called pg_result().

    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, next row is fetched.

    field

    A string representing the name of the field (column) to fetch, otherwise an int representing the field number to fetch. Fields are numbered from 0 upwards.

    Dönen Değerler

    Boolean is returned as "t" or "f". All other types, including arrays are returned as strings formatted in the same default PostgreSQL manner that you would see in the psql program. Database NULL values are returned as null.

    false is returned if row exceeds the number of rows in the set, or on any other error.

    Sürüm Bilgisi

    Sürüm: Açıklama
    8.3.0row is now nullable.
    8.1.0sonuç bağımsız değişkeni artık PgSql\Result nesnesi kabul ediyor, evvelce bir özkaynak kabul ederdi.

    Örnekler

    Örnek 1 pg_fetch_result() example

    <?php
    $db     = pg_connect("dbname=users user=me") || die();

    $res = pg_query($db, "SELECT 1 UNION ALL SELECT 2");

    $val = pg_fetch_result($res, 1, 0);

    echo     "First field in the second row is: ", $val, "\n";
    ?>

    Yukarıdaki örneğin çıktısı:

    First field in the second row is: 2

    Ayrıca Bakınız

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