Description:
------------
dba_replace fails, ending in 'Could not copy group [x - x] to temporary stream' because of a bad condition.
php_stream_copy_to_stream() has been replaced since 5.5 with php_stream_copy_to_stream_ex() without updating the conditions into which it's been enclosed; the newer function returns SUCCESS which is set to 0, hence the following check isn't valid anymore because it's expecting non-zero value (size_t):
if (!php_stream_copy_to_stream_ex(...)) {

It's been fixed in PHP7.0:
if (SUCCESS != php_stream_copy_to_stream_ex(...)) {

A patch has already been proposed two years ago, see: http://git.php.net/?p=php-src.git;a=commit;h=9e309a2d10d9696d047ecb442


Test script:
---------------
<?php
$db = dba_open("foo.inifile", 'c', 'inifile');

dba_insert('foo', 'value1', $db);
dba_replace('foo', 'value2', $db);
echo dba_fetch('foo', $db);

dba_close($db);
?>

Expected result:
----------------
All PHP versions >=5.3:
value2

Actual result:
--------------
PHP5.6 and PHP5.5:
value1