MFH

Added:

  mysqli_fetch_assoc_zerofill.phpt
    checks for UNSIGNED ZEROFILL

  mysqli_stmt_bind_result_zerofill.phpt
    checks for UNSIGNED ZEROFILL

  mysqli_stmt_bind_param_call_user_func.phpt
    Needs to be refined once http://bugs.php.net/bug.php?id=43568
    has been closed and a decision has been made on call_user_func_array().
    There seems to be a BC break between 5_2 -> 5_3 .
    Johannes has an eye on it

Modified:

  mysqli_change_user_insert_id.phpt
    skip test for buggy MySQL Server versions

  mysqli_insert_id.phpt
    added additional checks

ext/mysqli/tests/mysqli_change_user_insert_id.phpt

@@ -5,6 +5,15 @@ mysqli_change_user() - LAST_INSERT_ID()
 require_once('skipif.inc');
 require_once('skipifemb.inc');
 require_once('skipifconnectfailure.inc');
+require_once('connect.inc');
+if (!$IS_MYSQLND) {
+	if (!$link = mysqli_connect($host, $user, $passwd, $db, $port, $socket))
+		die("skip Can't test server version, might hit known bug http://bugs.mysql.com/bug.php?id=30472");
+	if (mysqli_get_client_version($link) < 50123)
+		/* TODO - check wich version got the patch */
+		die(sprintf("skip libmysql %s should have bug http://bugs.mysql.com/bug.php?id=30472", mysqli_get_client_version($link)));
+	mysqli_close($link);
+}
 ?>
 --FILE--
 <?php

ext/mysqli/tests/mysqli_fetch_assoc_zerofill.phpt

@@ -0,0 +1,74 @@
+--TEST--
+mysqli_fetch_assoc() - ZEROFILL
+--SKIPIF--
+<?php
+require_once('skipif.inc');
+require_once('skipifemb.inc');
+require_once('skipifconnectfailure.inc');
+?>
+--FILE--
+<?php
+	require_once('connect.inc');
+	require_once('table.inc');
+
+	function zerofill($offset, $link, $datatype, $insert = 1) {
+
+		mysqli_query($link, 'ALTER TABLE test DROP zero');
+		$sql = sprintf('ALTER TABLE test ADD zero %s UNSIGNED ZEROFILL', $datatype);
+		if (!mysqli_query($link, $sql)) {
+			// no worries - server might not support it
+			return true;
+		}
+
+		if (!mysqli_query($link, sprintf('UPDATE test SET zero = %s', $insert))) {
+			printf("[%03d] UPDATE failed, [%d] %s\n",
+				$offset, mysqli_errno($link), mysqli_error($link));
+			return false;
+		}
+
+		if (!($res = mysqli_query($link, 'SELECT zero FROM test LIMIT 1'))) {
+			printf("[%03d] SELECT failed, [%d] %s\n",
+				$offset, mysqli_errno($link), mysqli_error($link));
+			return false;
+		}
+
+		$row = mysqli_fetch_assoc($res);
+		$meta = mysqli_fetch_fields($res);
+		mysqli_free_result($res);
+		$meta = $meta[0];
+		$length = $meta->length;
+		if ($length > strlen($insert)) {
+
+			$expected = str_repeat('0', $length - strlen($insert));
+			$expected .= $insert;
+			if ($expected !== $row['zero']) {
+				printf("[%03d] Expecting '%s' got '%s'\n", $offset, $expected, $row['zero']);
+				return false;
+			}
+
+		} else if ($length <= 1) {
+			printf("[%03d] Length reported is too small to run test\n", $offset);
+			return false;
+		}
+
+		return true;
+	}
+
+	zerofill(2, $link, 'TINYINT');
+	zerofill(3, $link, 'SMALLINT');
+	zerofill(4, $link, 'MEDIUMINT');
+	zerofill(5, $link, 'INT');
+	zerofill(6, $link, 'INTEGER');
+	zerofill(7, $link, 'BIGINT');
+	zerofill(8, $link, 'FLOAT');
+	zerofill(9, $link, 'DOUBLE');
+	zerofill(10, $link, 'DOUBLE PRECISION');
+	zerofill(11, $link, 'DECIMAL');
+	zerofill(12, $link, 'DEC');
+
+	mysqli_close($link);
+
+	print "done!";
+?>
+--EXPECTF--
+done!

ext/mysqli/tests/mysqli_insert_id.phpt

@@ -1,9 +1,9 @@
 --TEST--
 mysqli_insert_id()
 --SKIPIF--
-<?php 
+<?php
 require_once('skipif.inc');
-require_once('skipifemb.inc'); 
+require_once('skipifemb.inc');
 require_once('skipifconnectfailure.inc');
 ?>
 --FILE--
@@ -104,7 +104,7 @@ require_once('skipifconnectfailure.inc');
 			mysqli_free_result($res);
 
 			if ($next_id != $row['last_id']) {
-				printf("[018] Something is wrong, check manually. Expecting %s got %s.\n",
+				printf("[019] Something is wrong, check manually. Expecting %s got %s.\n",
 					$next_id, $row['last_id']);
 				break;
 			}
@@ -112,6 +112,18 @@ require_once('skipifconnectfailure.inc');
 		mysqli_query($link, "UNLOCK TABLE test");
 	}
 
+	if (!$res = mysqli_query($link, "INSERT INTO test(id, label) VALUES (1000, 'a')")) {
+		printf("[020] [%d] %s\n", mysqli_errno($link), mysqli_error($link));
+	}
+	if (1000 !== ($tmp = mysqli_insert_id($link)))
+		printf("[021] Expecting int/1000, got %s/%s\n", gettype($tmp), $tmp);
+
+	if (!$res = mysqli_query($link, "INSERT INTO test(label) VALUES ('b'), ('c')")) {
+		printf("[022] [%d] %s\n", mysqli_errno($link), mysqli_error($link));
+	}
+	if (1000 >= ($tmp = mysqli_insert_id($link)))
+		printf("[023] Expecting int/>1000, got %s/%s\n", gettype($tmp), $tmp);
+
 	mysqli_close($link);
 
 	var_dump(mysqli_insert_id($link));

ext/mysqli/tests/mysqli_stmt_bind_param_call_user_func.phpt

@@ -0,0 +1,398 @@
+--TEST--
+mysqli_stmt_bind_param used with call_user_func_array() (see also bug #43568)
+--SKIPIF--
+<?php
+require_once('skipif.inc');
+require_once('skipifemb.inc');
+require_once('skipifconnectfailure.inc');
+
+// TODO remove once a decision has been made on call_user_func_array()
+if (version_compare(PHP_VERSION, '5.3.0-dev') == -1)
+	die("skip needs PHP 5.3.0-dev+, see http://bugs.php.net/bug.php?id=43568");
+?>
+--FILE--
+<?php
+	require('connect.inc');
+	require('table.inc');
+
+	if (!$stmt = mysqli_stmt_init($link))
+		printf("[001] [%d] %s\n", mysqli_errno($link), mysqli_error($link));
+
+	if (!mysqli_stmt_prepare($stmt, 'SELECT id, label FROM test WHERE id = ?'))
+		printf("[002] [%d] %s\n", mysqli_stmt_errno($stmt), mysqli_stmt_error($stmt));
+
+	$id = 1;
+	if (!mysqli_stmt_bind_param($stmt, 'i', $id) ||
+		!mysqli_stmt_execute($stmt))
+		printf("[003] [%d] %s\n", mysqli_stmt_errno($stmt), mysqli_stmt_error($stmt));
+
+	$id = $label = null;
+	if (!mysqli_stmt_bind_result($stmt, $id, $label) ||
+		(true !== mysqli_stmt_fetch($stmt)))
+		printf("[004] [%d] %s\n", mysqli_stmt_errno($stmt), mysqli_stmt_error($stmt));
+
+	print "Regular, procedural, using variables\n";
+	var_dump($id);
+	var_dump($label);
+
+	mysqli_stmt_close($stmt);
+	if (!$stmt = mysqli_stmt_init($link))
+		printf("[005] [%d] %s\n", mysqli_errno($link), mysqli_error($link));
+
+	if (!mysqli_stmt_prepare($stmt, 'SELECT id, label FROM test WHERE id = ?'))
+		printf("[006] [%d] %s\n", mysqli_stmt_errno($stmt), mysqli_stmt_error($stmt));
+
+	$types = 'i';
+	$id = 1;
+	$params = array(
+		0 => &$stmt,
+		1 => &$types,
+		2 => &$id
+	);
+	if (!call_user_func_array('mysqli_stmt_bind_param', $params))
+		printf("[007] [%d] %s\n", mysqli_stmt_errno($stmt), mysqli_stmt_error($stmt));
+
+	if (!mysqli_stmt_execute($stmt))
+		printf("[008] [%d] %s\n", mysqli_stmt_errno($stmt), mysqli_stmt_error($stmt));
+
+	$id = $label = null;
+	if (!mysqli_stmt_bind_result($stmt, $id, $label) ||
+		(true !== mysqli_stmt_fetch($stmt)))
+		printf("[009] [%d] %s\n", mysqli_stmt_errno($stmt), mysqli_stmt_error($stmt));
+
+	print "Call user func, procedural, using references for everything\n";
+	var_dump($id);
+	var_dump($label);
+
+	mysqli_stmt_close($stmt);
+	if (!$stmt = mysqli_stmt_init($link))
+		printf("[010] [%d] %s\n", mysqli_errno($link), mysqli_error($link));
+
+	if (!mysqli_stmt_prepare($stmt, 'SELECT id, label FROM test WHERE id = ?'))
+		printf("[011] [%d] %s\n", mysqli_stmt_errno($stmt), mysqli_stmt_error($stmt));
+
+	$types = 'i';
+	$id = 1;
+	$params = array(
+		0 => &$types,
+		1 => &$id
+	);
+	if (!call_user_func_array(array($stmt, 'bind_param'), $params))
+		printf("[012] [%d] %s\n", mysqli_stmt_errno($stmt), mysqli_stmt_error($stmt));
+
+	if (!mysqli_stmt_execute($stmt))
+		printf("[013] [%d] %s\n", mysqli_stmt_errno($stmt), mysqli_stmt_error($stmt));
+
+	$id = $label = null;
+	if (!mysqli_stmt_bind_result($stmt, $id, $label) ||
+		(true !== mysqli_stmt_fetch($stmt)))
+		printf("[014] [%d] %s\n", mysqli_stmt_errno($stmt), mysqli_stmt_error($stmt));
+
+	print "Call user func, object oriented, using references for everything\n";
+	var_dump($id);
+	var_dump($label);
+
+	mysqli_stmt_close($stmt);
+	if (!$stmt = mysqli_stmt_init($link))
+		printf("[015] [%d] %s\n", mysqli_errno($link), mysqli_error($link));
+
+	if (!mysqli_stmt_prepare($stmt, 'SELECT id, label FROM test WHERE id = ?'))
+		printf("[016] [%d] %s\n", mysqli_stmt_errno($stmt), mysqli_stmt_error($stmt));
+
+	$types = 'i';
+	$id = 1;
+	$params = array(
+		0 => $types,
+		1 => &$id
+	);
+	if (!call_user_func_array(array($stmt, 'bind_param'), $params))
+		printf("[017] [%d] %s\n", mysqli_stmt_errno($stmt), mysqli_stmt_error($stmt));
+
+	if (!mysqli_stmt_execute($stmt))
+		printf("[018] [%d] %s\n", mysqli_stmt_errno($stmt), mysqli_stmt_error($stmt));
+
+	$id = $label = null;
+	if (!mysqli_stmt_bind_result($stmt, $id, $label) ||
+		(true !== mysqli_stmt_fetch($stmt)))
+		printf("[019] [%d] %s\n", mysqli_stmt_errno($stmt), mysqli_stmt_error($stmt));
+
+	print "Call user func, object oriented, using variable for types. using references for bound parameter\n";
+	var_dump($id);
+	var_dump($label);
+
+	mysqli_stmt_close($stmt);
+	if (!$stmt = mysqli_stmt_init($link))
+		printf("[020] [%d] %s\n", mysqli_errno($link), mysqli_error($link));
+
+	if (!mysqli_stmt_prepare($stmt, 'SELECT id, label FROM test WHERE id = ?'))
+		printf("[021] [%d] %s\n", mysqli_stmt_errno($stmt), mysqli_stmt_error($stmt));
+
+	$id = 1;
+	$params = array(
+		0 => 'i',
+		1 => &$id
+	);
+	if (!call_user_func_array(array($stmt, 'bind_param'), $params))
+		printf("[022] [%d] %s\n", mysqli_stmt_errno($stmt), mysqli_stmt_error($stmt));
+
+	if (!mysqli_stmt_execute($stmt))
+		printf("[023] [%d] %s\n", mysqli_stmt_errno($stmt), mysqli_stmt_error($stmt));
+
+	$id = $label = null;
+	if (!mysqli_stmt_bind_result($stmt, $id, $label) ||
+		(true !== mysqli_stmt_fetch($stmt)))
+		printf("[024] [%d] %s\n", mysqli_stmt_errno($stmt), mysqli_stmt_error($stmt));
+
+	print "Call user func, object oriented, using constant for types. using references for bound parameter\n";
+	var_dump($id);
+	var_dump($label);
+
+	mysqli_stmt_close($stmt);
+	if (!$stmt = mysqli_stmt_init($link))
+		printf("[025] [%d] %s\n", mysqli_errno($link), mysqli_error($link));
+
+	if (!mysqli_stmt_prepare($stmt, 'SELECT id, label FROM test WHERE id = ?'))
+		printf("[026] [%d] %s\n", mysqli_stmt_errno($stmt), mysqli_stmt_error($stmt));
+
+	$types = 'i';
+	$id = 1;
+	$params = array(
+		0 => &$stmt,
+		1 => $types,
+		2 => &$id
+	);
+	if (!call_user_func_array('mysqli_stmt_bind_param', $params))
+		printf("[027] [%d] %s\n", mysqli_stmt_errno($stmt), mysqli_stmt_error($stmt));
+
+	if (!mysqli_stmt_execute($stmt))
+		printf("[028] [%d] %s\n", mysqli_stmt_errno($stmt), mysqli_stmt_error($stmt));
+
+	$id = $label = null;
+	if (!mysqli_stmt_bind_result($stmt, $id, $label) ||
+		(true !== mysqli_stmt_fetch($stmt)))
+		printf("[029] [%d] %s\n", mysqli_stmt_errno($stmt), mysqli_stmt_error($stmt));
+
+	print "Call user func, procedural, using references for everything but using variable for types\n";
+	var_dump($id);
+	var_dump($label);
+
+	mysqli_stmt_close($stmt);
+	if (!$stmt = mysqli_stmt_init($link))
+		printf("[025] [%d] %s\n", mysqli_errno($link), mysqli_error($link));
+
+	if (!mysqli_stmt_prepare($stmt, 'SELECT id, label FROM test WHERE id = ?'))
+		printf("[026] [%d] %s\n", mysqli_stmt_errno($stmt), mysqli_stmt_error($stmt));
+
+	$types = 'i';
+	$id = 1;
+	$params = array(
+		0 => $stmt,
+		1 => $types,
+		2 => &$id
+	);
+	if (!call_user_func_array('mysqli_stmt_bind_param', $params))
+		printf("[027] [%d] %s\n", mysqli_stmt_errno($stmt), mysqli_stmt_error($stmt));
+
+	if (!mysqli_stmt_execute($stmt))
+		printf("[028] [%d] %s\n", mysqli_stmt_errno($stmt), mysqli_stmt_error($stmt));
+
+	$id = $label = null;
+	if (!mysqli_stmt_bind_result($stmt, $id, $label) ||
+		(true !== mysqli_stmt_fetch($stmt)))
+		printf("[029] [%d] %s\n", mysqli_stmt_errno($stmt), mysqli_stmt_error($stmt));
+
+	print "Call user func, procedural, using references for bound parameter, using variables for resource and types\n";
+	var_dump($id);
+	var_dump($label);
+
+	mysqli_stmt_close($stmt);
+	if (!$stmt = mysqli_stmt_init($link))
+		printf("[030] [%d] %s\n", mysqli_errno($link), mysqli_error($link));
+
+	if (!mysqli_stmt_prepare($stmt, 'SELECT id, label FROM test WHERE id = ?'))
+		printf("[031] [%d] %s\n", mysqli_stmt_errno($stmt), mysqli_stmt_error($stmt));
+
+	$types = 'i';
+	$id = 1;
+	$params = array(
+		0 => $stmt,
+		1 => $types,
+		2 => &$id
+	);
+	if (!call_user_func_array('mysqli_stmt_bind_param', $params))
+		printf("[032] [%d] %s\n", mysqli_stmt_errno($stmt), mysqli_stmt_error($stmt));
+
+	if (!mysqli_stmt_execute($stmt))
+		printf("[033] [%d] %s\n", mysqli_stmt_errno($stmt), mysqli_stmt_error($stmt));
+
+	$id = $label = null;
+	if (!mysqli_stmt_bind_result($stmt, $id, $label) ||
+		(true !== mysqli_stmt_fetch($stmt)))
+		printf("[034] [%d] %s\n", mysqli_stmt_errno($stmt), mysqli_stmt_error($stmt));
+
+	print "Call user func, procedural, using references for bound parameter, using variables for resource and types\n";
+	var_dump($id);
+	var_dump($label);
+
+	mysqli_stmt_close($stmt);
+	if (!$stmt = mysqli_stmt_init($link))
+		printf("[035] [%d] %s\n", mysqli_errno($link), mysqli_error($link));
+
+	if (!mysqli_stmt_prepare($stmt, 'SELECT id, label FROM test WHERE id = ?'))
+		printf("[036] [%d] %s\n", mysqli_stmt_errno($stmt), mysqli_stmt_error($stmt));
+
+	$id = 1;
+	$params = array(
+		0 => $stmt,
+		1 => 'i',
+		2 => &$id
+	);
+	if (!call_user_func_array('mysqli_stmt_bind_param', $params))
+		printf("[037] [%d] %s\n", mysqli_stmt_errno($stmt), mysqli_stmt_error($stmt));
+
+	if (!mysqli_stmt_execute($stmt))
+		printf("[038] [%d] %s\n", mysqli_stmt_errno($stmt), mysqli_stmt_error($stmt));
+
+	$id = $label = null;
+	if (!mysqli_stmt_bind_result($stmt, $id, $label) ||
+		(true !== mysqli_stmt_fetch($stmt)))
+		printf("[039] [%d] %s\n", mysqli_stmt_errno($stmt), mysqli_stmt_error($stmt));
+
+	print "Call user func, procedural, using references for bound parameter, using variable for resource, using constant for types\n";
+	var_dump($id);
+	var_dump($label);
+
+	mysqli_stmt_close($stmt);
+	if (!$stmt = mysqli_stmt_init($link))
+		printf("[040] [%d] %s\n", mysqli_errno($link), mysqli_error($link));
+
+	if (!mysqli_stmt_prepare($stmt, 'SELECT id, label FROM test WHERE id = ?'))
+		printf("[041] [%d] %s\n", mysqli_stmt_errno($stmt), mysqli_stmt_error($stmt));
+
+	$id = 1;
+	if (!call_user_func_array('mysqli_stmt_bind_param', array($stmt, 'i', &$id)))
+		printf("[042] [%d] %s\n", mysqli_stmt_errno($stmt), mysqli_stmt_error($stmt));
+
+	if (!mysqli_stmt_execute($stmt))
+		printf("[043] [%d] %s\n", mysqli_stmt_errno($stmt), mysqli_stmt_error($stmt));
+
+	$id = $label = null;
+	if (!mysqli_stmt_bind_result($stmt, $id, $label) ||
+		(true !== mysqli_stmt_fetch($stmt)))
+		printf("[044] [%d] %s\n", mysqli_stmt_errno($stmt), mysqli_stmt_error($stmt));
+
+	print "Call user func, procedural, using references for bound parameter, using variable for resource, using constant for types, array\n";
+	var_dump($id);
+	var_dump($label);
+
+	//
+	// Any of those shall fail - see also bugs.php.net/43568
+	//
+	mysqli_stmt_close($stmt);
+	if (!$stmt = mysqli_stmt_init($link))
+		printf("[045] [%d] %s\n", mysqli_errno($link), mysqli_error($link));
+
+	if (!mysqli_stmt_prepare($stmt, 'SELECT id, label FROM test WHERE id = ?'))
+		printf("[046] [%d] %s\n", mysqli_stmt_errno($stmt), mysqli_stmt_error($stmt));
+
+	$id = 1;
+	$params = array(
+		0 => 'i',
+		1 => $id
+	);
+	if (call_user_func_array(array($stmt, 'bind_param'), $params))
+		printf("[047] [%d] %s\n", mysqli_stmt_errno($stmt), mysqli_stmt_error($stmt));
+
+	if (!mysqli_stmt_execute($stmt))
+		printf("[048] [%d] (Message might vary with MySQL Server version, e.g. No data supplied for parameters in prepared statement)\n", mysqli_stmt_errno($stmt));
+
+	mysqli_stmt_close($stmt);
+	if (!$stmt = mysqli_stmt_init($link))
+		printf("[049] [%d] %s\n", mysqli_errno($link), mysqli_error($link));
+
+	if (!mysqli_stmt_prepare($stmt, 'SELECT id, label FROM test WHERE id = ?'))
+		printf("[050] [%d] %s\n", mysqli_stmt_errno($stmt), mysqli_stmt_error($stmt));
+
+	$types = 'i';
+	$id = 1;
+	$params = array(
+		0 => $stmt,
+		1 => 'i',
+		2 => $id
+	);
+	if (call_user_func_array('mysqli_stmt_bind_param', $params))
+		printf("[051] [%d] %s\n", mysqli_stmt_errno($stmt), mysqli_stmt_error($stmt));
+
+	if (!mysqli_stmt_execute($stmt))
+		printf("[052] [%d] (Message might vary with MySQL Server version, e.g. No data supplied for parameters in prepared statement)\n", mysqli_stmt_errno($stmt));
+
+	print "done!";
+?>
+--EXPECTF--
+Regular, procedural, using variables
+int(1)
+string(1) "a"
+Call user func, procedural, using references for everything
+int(1)
+string(1) "a"
+Call user func, object oriented, using references for everything
+int(1)
+string(1) "a"
+Call user func, object oriented, using variable for types. using references for bound parameter
+int(1)
+string(1) "a"
+Call user func, object oriented, using constant for types. using references for bound parameter
+int(1)
+string(1) "a"
+Call user func, procedural, using references for everything but using variable for types
+int(1)
+string(1) "a"
+Call user func, procedural, using references for bound parameter, using variables for resource and types
+int(1)
+string(1) "a"
+Call user func, procedural, using references for bound parameter, using variables for resource and types
+int(1)
+string(1) "a"
+Call user func, procedural, using references for bound parameter, using variable for resource, using constant for types
+int(1)
+string(1) "a"
+Call user func, procedural, using references for bound parameter, using variable for resource, using constant for types, array
+int(1)
+string(1) "a"
+[048] [2031] (Message might vary with MySQL Server version, e.g. No data supplied for parameters in prepared statement)
+[052] [2031] (Message might vary with MySQL Server version, e.g. No data supplied for parameters in prepared statement)
+done!
+--UEXPECTF--
+Regular, procedural, using variables
+int(1)
+unicode(1) "a"
+Call user func, procedural, using references for everything
+int(1)
+unicode(1) "a"
+Call user func, object oriented, using references for everything
+int(1)
+unicode(1) "a"
+Call user func, object oriented, using variable for types. using references for bound parameter
+int(1)
+unicode(1) "a"
+Call user func, object oriented, using constant for types. using references for bound parameter
+int(1)
+unicode(1) "a"
+Call user func, procedural, using references for everything but using variable for types
+int(1)
+unicode(1) "a"
+Call user func, procedural, using references for bound parameter, using variables for resource and types
+int(1)
+unicode(1) "a"
+Call user func, procedural, using references for bound parameter, using variables for resource and types
+int(1)
+unicode(1) "a"
+Call user func, procedural, using references for bound parameter, using variable for resource, using constant for types
+int(1)
+unicode(1) "a"
+Call user func, procedural, using references for bound parameter, using variable for resource, using constant for types, array
+int(1)
+unicode(1) "a"
+[048] [2031] (Message might vary with MySQL Server version, e.g. No data supplied for parameters in prepared statement)
+[052] [2031] (Message might vary with MySQL Server version, e.g. No data supplied for parameters in prepared statement)
+done!

ext/mysqli/tests/mysqli_stmt_bind_result_zerofill.phpt

@@ -0,0 +1,93 @@
+--TEST--
+mysqli_stmt_bind_result() - ZEROFILL
+--SKIPIF--
+<?php
+require_once('skipif.inc');
+require_once('skipifemb.inc');
+require_once('skipifconnectfailure.inc');
+?>
+--FILE--
+<?php
+	require_once('connect.inc');
+	require_once('table.inc');
+
+	function zerofill($offset, $link, $datatype, $insert = 1) {
+
+		mysqli_query($link, 'ALTER TABLE test DROP zero');
+		$sql = sprintf('ALTER TABLE test ADD zero %s UNSIGNED ZEROFILL', $datatype);
+		if (!mysqli_query($link, $sql)) {
+			// no worries - server might not support it
+			return true;
+		}
+
+		if (!mysqli_query($link, sprintf('UPDATE test SET zero = %s', $insert))) {
+			printf("[%03d] UPDATE failed, [%d] %s\n",
+				$offset, mysqli_errno($link), mysqli_error($link));
+			return false;
+		}
+
+		if (!($stmt = mysqli_prepare($link, 'SELECT zero FROM test LIMIT 1'))) {
+			printf("[%03d] SELECT failed, [%d] %s\n",
+				$offset, mysqli_errno($link), mysqli_error($link));
+			return false;
+		}
+
+		$result = null;
+		if (!mysqli_stmt_bind_result($stmt, $result)) {
+			printf("[%03d] Bind failed, [%d] %s\n",
+				mysqli_stmt_errno($stmt), mysqli_stmt_error($stmt));
+			return false;
+		}
+
+		if (!mysqli_stmt_execute($stmt) || !mysqli_stmt_fetch($stmt)) {
+			printf("[%03d] Execute or fetch failed, [%d] %s\n",
+				mysqli_stmt_errno($stmt), mysqli_stmt_error($stmt));
+			return false;
+		}
+
+		$res = mysqli_stmt_result_metadata($stmt);
+		$meta = mysqli_fetch_fields($res);
+		mysqli_stmt_free_result($stmt);
+
+		$meta = $meta[0];
+		$length = $meta->length;
+		if ($length > strlen($insert)) {
+
+			$expected = str_repeat('0', $length - strlen($insert));
+			$expected .= $insert;
+			if ($expected !== $result) {
+				printf("[%03d] Expecting '%s' got '%s'\n", $offset, $expected, $result);
+				return false;
+			}
+
+		} else if ($length <= 1) {
+			printf("[%03d] Length reported is too small to run test\n", $offset);
+			return false;
+		}
+
+
+		return true;
+	}
+
+	/*
+	We map those to PHP numeric types -
+		no padding/filling done. Neither with libmysql nor with mysqlnd.
+	zerofill(2, $link, 'TINYINT');
+	zerofill(3, $link, 'SMALLINT');
+	zerofill(4, $link, 'MEDIUMINT');
+	zerofill(5, $link, 'INT');
+	zerofill(6, $link, 'INTEGER');
+	zerofill(7, $link, 'BIGINT');
+	zerofill(8, $link, 'FLOAT');
+	zerofill(9, $link, 'DOUBLE');
+	zerofill(10, $link, 'DOUBLE PRECISION');
+	*/
+	zerofill(11, $link, 'DECIMAL');
+	zerofill(12, $link, 'DEC');
+
+	mysqli_close($link);
+
+	print "done!";
+?>
+--EXPECTF--
+done!