pg_fetch_array

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

    pg_fetch_array — Fetch a row as an array

    Descripción

    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.

    Nota: Esta función define campos NULOS al valor null de PHP.

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

    Parámetros

    result

    An PgSql\Result instance, 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 or null, the next row is fetched.

    mode

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

    Valores devueltos

    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.

    Historial de cambios

    VersiónDescripción
    8.1.0 The result parameter expects an PgSql\Result instance now; previously, a recurso was expected.

    Ejemplos

    Ejemplo #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";

    ?>

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