DB_result::numRows() -- Gets number of rows in a result set
Описание
Get the number of rows in a result set.
| Внимание |
For ibase, ifx and
oci8, this method only works if the
DB_PORTABILITY_NUMROWS
portability option is enabled.
In addition, for ibase and
ifx, PEAR DB must be at version
1.7.0 or greater.
Does not work for Microsoft Access.
|
Возвращаемое значение
integer - number of rows
or a DB_Error object on failure
Заметка
Эта функция не должна вызываться статически.
Пример
Пример 35-1. Using numRows()
<?php
// Once you have a valid DB object named $db...
$res =& $db->query('SELECT * FROM phptest');
echo $res->numRows();
?>
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