<?php # vim:ft=php

require_once('pdo.inc');
	
set_sql('create1', 'CREATE TABLE test(idx int NOT NULL PRIMARY KEY, txt VARCHAR(20))');
set_sql('insert1', 'INSERT INTO test VALUES(0, \'String0\')'); 
set_sql('insert2', 'INSERT INTO test VALUES(1, \'String1\')'); 
set_sql('insert3', 'INSERT INTO test VALUES(2, \'String2\')'); 
set_sql('select1', 'SELECT COUNT(*) FROM test'); 
set_sql('select2', 'SELECT idx, txt FROM test ORDER by idx'); 
set_sql('select3', 'SELECT txt FROM test WHERE idx=:inp'); 
set_sql('select4', 'SELECT idx FROM test WHERE txt=:txt'); 

echo "===INIT===\n";

$DB->exec($SQL['create1']);
var_dump($DB->exec($SQL['insert1']));
var_dump($DB->exec($SQL['insert2']));
var_dump($DB->exec($SQL['insert3']));
var_dump($DB->query($SQL['select1'])->fetchSingle());

$cont = $DB->query($SQL['select2'])->fetchAll(PDO_FETCH_COLUMN|PDO_FETCH_UNIQUE);
var_dump($cont);

echo "===WHILE===\n";

$stmt2 = $DB->prepare($SQL['select2']);
$stmt2->bindColumn('idx', $idx);
$stmt2->bindColumn('txt', $txt);
$stmt2->execute();

while($stmt2->fetch(PDO_FETCH_BOUND)) {
	var_dump(array($idx=>$txt));
}

echo "===ALONE===\n";

$stmt3 = $DB->prepare($SQL['select3']);
$stmt3->bindParam(':inp', $idx); /* by foreign name */
$stmt3->bindColumn('txt', $col1);

$stmt4 = $DB->prepare($SQL['select4']);
$stmt4->bindParam(':txt', $txt);  /* using same name */
$stmt4->bindColumn('idx', $col2);

foreach($cont as $idx => $txt)
{
	var_dump(array($idx=>$txt));
	var_dump($stmt3->execute());
	var_dump($stmt3->fetch(PDO_FETCH_BOUND));
	var_dump($stmt4->execute());
	var_dump($stmt4->fetch(PDO_FETCH_BOUND));
	var_dump(array($col2=>$col1));
}

echo "===REBIND/SAME===\n";

$stmt4->bindColumn('idx', $col1);

foreach($cont as $idx => $txt)
{
	var_dump(array($idx=>$txt));
	var_dump($stmt3->execute());
	var_dump($stmt3->fetch(PDO_FETCH_BOUND));
	var_dump($col1);
	var_dump($stmt4->execute());
	var_dump($stmt4->fetch(PDO_FETCH_BOUND));
	var_dump($col1);
}

echo "===REBIND/CONFLICT===\n";

$stmt2->bindColumn('idx', $col1);
$stmt2->bindColumn('txt', $col1);
$stmt2->execute();

while($stmt2->fetch(PDO_FETCH_BOUND))
{
	var_dump($col1);
}

?>