$filename = 'my_upgrade(1).zip';
$match = 'my_upgrade';
if(!strpos($filename, $match))
{
die();
}
else
{
//proceed
}
$filename = 'my_upgrade(1).zip';
$match = 'my_u$filename = 'my_upgrade(1).zip';
$match = 'my_upgrade';
if(!strpos($filename, $match))
{
die();
}
else
{
//proceed
}
$filename = 'my_upgrade(1).zip';
$match = 'my_u