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Последние активные темы форума |
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maxdb_field_count
(no version information, might be only in CVS) maxdb_field_count -- Returns the number of columns for the most recent query
DescriptionПроцедурный стиль: int maxdb_field_count ( resource link ) Returns the number of columns for the most recent query on the connection
represented by the link parameter. This function
can be useful when using the maxdb_store_result()
function to determine if the query should have produced a non-empty result
set or not without knowing the nature of the query.
Return valuesAn integer representing the number of fields in a result set
Example
Пример 1. Процедурный стиль
<?php
$link
=
maxdb_connect
(
"localhost"
,
"MONA"
,
"RED"
);
maxdb_report
(
MAXDB_REPORT_OFF
);
maxdb_query
(
$link
,
"DROP TABLE friends"
);
maxdb_report
(
MAXDB_REPORT_ERROR
);
maxdb_query
(
$link
,
"CREATE TABLE friends (id int, name varchar(20))"
);
maxdb_query
(
$link
,
"INSERT INTO friends VALUES (1,'Hartmut')"
);
maxdb_query
(
$link
,
"INSERT INTO friends VALUES (2, 'Ulf')"
);
if (
maxdb_field_count
(
$link
)) {
/* this was a select/show or describe query */
$result
=
maxdb_store_result
(
$link
);
/* process resultset */
$row
=
maxdb_fetch_row
(
$result
);
/* free resultset */
maxdb_free_result
(
$result
);
}
/* close connection */
maxdb_close
(
$link
);
?>
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