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I have tried converting from mybb to smf using you converter and i have this error

explode() expects parameter 2 to be string, array given in /homepages/11/d780500858/htdocs/clickandbuilds/SMF/MyCollaboration/convert.php on line 428

Any idea what i may be doing wrong

So I wanted to convert a couple archived IPB 2.3 forums to SMF. My environment has PHP 7.3 and I noticed that the conversion PHP script only supports PHP 4 and 5. I noticed that the reason for this, at least from what I've seen, is because it relies on the MYSQL extension which was removed in PHP 7.0.0. I don't know of the implications of moving to MYSQLi for convert.php other than it would remove the support for PHP 4.

Convertor issue Unknown system variable 'SQL_MAX_JOIN_SIZE
Saw this issue http://www.simplemachines.org/community/index.php?topic=551482.0

In convert.php for MySQL 5.6 and higher
The list of changes in MySQL 5.6 is at

http://dev.mysql.com/doc/refman/5.6/en/mysql-nutshell.html

Under Removed Features it says:

The sql_max_join_size system variable. Use max_join_size instead.

Convertors for MySQLI

Seems to fail with the handling at least on windows. Not sure how many now currently use ADO on windows.

Code such as
` // Okay, the hardest is ADO (Windows only, by the way.)
if (!is_resource($result) && is_object($result))
{
if ($result->EOF)
return false;

	$row = array();
	$fields = $result->Fields;
	for ($i = 0, $n = $fields->Count; $i < $n; $i++)
	{
		$field = $fields[$i];
		$row[$field->Name] = $field->Value;
	}
	$result->MoveNext();

	return $row;
}

`

A nice idea to have would be a visualization of where the conversion process is at, much like the progress bar shown in the SMF installer when installing the forum. Instead of waiting until the converter is finished, we have a cool progress bar to look at! What are your thoughts on this?

If you can't write to the sessions path the conversion can fail.
See this topic for details
https://www.simplemachines.org/community/index.php?topic=551406.0