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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 Описаниеint 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().
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"; ?>
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Результат выполнения данного примера: |
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