pdo_014.phpt

--TEST--
PDO Common: PDOStatement SPL iterator
--EXTENSIONS--
pdo
--SKIPIF--
<?php
$dir = getenv('REDIR_TEST_DIR');
if (false == $dir) die('skip no driver');
require_once $dir . 'pdo_test.inc';
PDOTest::skip();
?>
--FILE--
<?php
if (getenv('REDIR_TEST_DIR') === false) putenv('REDIR_TEST_DIR='.__DIR__ . '/../../pdo/tests/');
require_once getenv('REDIR_TEST_DIR') . 'pdo_test.inc';
$db = PDOTest::factory();

$db->exec('CREATE TABLE test014(id int NOT NULL PRIMARY KEY, val VARCHAR(10), grp VARCHAR(10))');
$db->exec("INSERT INTO test014 VALUES(1, 'A', 'Group1')");
$db->exec("INSERT INTO test014 VALUES(2, 'B', 'Group2')");
$SELECT = 'SELECT val, grp FROM test014';

class TestClass
{
    public $val;
    public $grp;

    function __construct($name = 'N/A')
    {
        echo __METHOD__ . "($name)\n";
    }
}

$stmt = $db->query($SELECT, PDO::FETCH_CLASS, TestClass::class, array('WOW'));

$it = new IteratorIterator($stmt); /* check if we can convert that thing */

/*** HINT: If YOU plan to do so remember not to call rewind() -> see below ***/

foreach($it as $data)
{
    var_dump($data);
}

$it->next();              /* must be allowed */
var_dump($it->current()); /* must return NULL */
var_dump($it->valid());   /* must return false */

class PDOStatementAggregate extends PDOStatement implements IteratorAggregate
{
    private function __construct()
    {
        echo __METHOD__ . "\n";
        $this->setFetchMode(PDO::FETCH_NUM);
        /* default fetch mode is BOTH, so we see if the ctor can overwrite that */
    }

    function getIterator(): Iterator
    {
        echo __METHOD__ . "\n";
        $this->execute();
        return new IteratorIterator($this, 'PDOStatement');
    }
}

$stmt = $db->prepare($SELECT, array(PDO::ATTR_STATEMENT_CLASS=>array('PDOStatementAggregate')));

foreach($stmt as $data)
{
    var_dump($data);
}

?>
--CLEAN--
<?php
require_once getenv('REDIR_TEST_DIR') . 'pdo_test.inc';
$db = PDOTest::factory();
PDOTest::dropTableIfExists($db, "test014");
?>
--EXPECTF--
TestClass::__construct(WOW)
object(TestClass)#%d (2) {
  ["val"]=>
  string(1) "A"
  ["grp"]=>
  string(6) "Group1"
}
TestClass::__construct(WOW)
object(TestClass)#%d (2) {
  ["val"]=>
  string(1) "B"
  ["grp"]=>
  string(6) "Group2"
}
NULL
bool(false)
PDOStatementAggregate::__construct
PDOStatementAggregate::getIterator
array(2) {
  [0]=>
  string(1) "A"
  [1]=>
  string(6) "Group1"
}
array(2) {
  [0]=>
  string(1) "B"
  [1]=>
  string(6) "Group2"
}