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<?php
/**
* Tests the drivers' limitQuery() method
*
* Executed by driver/13limit.phpt
*
* PHP versions 4 and 5
*
* LICENSE: This source file is subject to version 3.0 of the PHP license
* that is available through the world-wide-web at the following URI:
* http://www.php.net/license/3_0.txt. If you did not receive a copy of
* the PHP License and are unable to obtain it through the web, please
* send a note to license@php.net so we can mail you a copy immediately.
*
* @category Database
* @package DB
* @author Daniel Convissor <danielc@php.net>
* @copyright 1997-2007 The PHP Group
* @license http://www.php.net/license/3_0.txt PHP License 3.0
* @version $Id: limit.inc,v 1.14 2007/07/06 05:19:21 aharvey Exp $
* @link http://pear.php.net/package/DB
*/
error_reporting(E_ALL);
/**
* Local error callback handler
*
* Drops the phptest table, prints out an error message and kills the
* process.
*
* @param object $o PEAR error object automatically passed to this method
* @return void
* @see PEAR::setErrorHandling()
*/
function pe($o) {
global $dbh;
$dbh->setErrorHandling(PEAR_ERROR_RETURN);
drop_table($dbh, 'phptest');
die($o->toString());
}
$dbh->setErrorHandling(PEAR_ERROR_RETURN);
drop_table($dbh, 'php_limit');
$dbh->setErrorHandling(PEAR_ERROR_CALLBACK, 'pe');
$dbh->query('CREATE TABLE php_limit (a CHAR(20))');
$from = 0;
$count = 10;
$numrows = 30;
for ($i=0; $i<=$numrows+2; $i++) {
$dbh->query("INSERT INTO php_limit VALUES('result $i')");
}
for ($i = 0; $i <= 3; $i++) {
$from = 10 * $i;
$res = $dbh->limitQuery("select * from php_limit", $from, $count);
echo "======= From: $from || Number of rows to fetch: $count =======\n";
while ($row = $res->fetchRow(DB_FETCHMODE_ASSOC)) {
echo $res->getRowCounter() . '.- ' . $row['a'] . "\n";
}
$count = $res->numRows();
echo "Row count for limited result: $count\n";
$res->free(); // keep fbsql happy.
}
$from = 11;
$count = 3;
echo "======= Passing \$params || From: $from || Number of rows to fetch: $count =======\n";
$res = $dbh->limitQuery('SELECT * FROM php_limit WHERE a < ?', $from, $count, array('result 99'));
while ($row = $res->fetchRow(DB_FETCHMODE_ASSOC)) {
echo $res->getRowCounter() . '.- ' . $row['a'] . "\n";
}
$res->free(); // keep fbsql happy.
// keep ibase happy: can't drop tbl that has results open against it.
// Regression test for bug #7502.
$from = 0;
$count = 3;
$iter = 10;
echo "======= From: $from || Number of rows to fetch: $count || Iterations: $iter =======\n";
$res = $dbh->limitQuery("select * from php_limit", $from, $count);
if (!in_array($dbh->phptype, array('ibase', 'oci8'))) {
for ($i = 0; $i < $iter; ++$i) {
if (is_null($row = $res->fetchRow(DB_FETCHMODE_ASSOC, 1))) {
echo "Error in iteration $i: {$row['a']}\n";
}
}
}
$count = $res->numRows();
echo "Row count for limited result: $count\n";
$res->free(); // keep fbsql happy.
$dbh->setErrorHandling(PEAR_ERROR_RETURN);
drop_table($dbh, 'php_limit');
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