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pg_num_fields

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pg_num_fields

(PHP 4 >= 4.2.0, PHP 5)pg_num_fields -- Returns the number of fields in a result

Описание

int pg_num_fields ( resource result )


- pg_num_fields() returns the number of fields (columns) in a PostgreSQL result resource.

Замечание: This function used to be called pg_numfields().

Список параметров

-

result

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

Возвращаемые значения

- The number of fields (columns) in the result. On error, -1 is returned.

Примеры

-

Пример 1. pg_num_fields() example

<?php
$result = pg_query($conn, "SELECT 1, 2");

$num = pg_num_fields($result);

echo $num . " field(s) returned.\n";
?>

Результат выполнения данного примера:
2 field(s) returned.

Смотрите также

-

pg_num_rows()
pg_affected_rows()

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pg_meta_data

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pg_num_rows 22222

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