On Fri, 2007-09-21 at 16:18 +0100, Ben wrote:
> It really depends on your situation.
> We are an ISP hosting lots of website. Upgrading from 4 to 5 means a lot of
> sites will have trouble.
> Personally I have some problem of upgrading from 4 to 5.
>
> The below codes work on 4:
>
> include("DB/DataObjects.php");
> $pro = DB_DataObject::factory('Product');
> $pro->find();
> while($pro->fetch())
> $allPro[] = $pro;
>
> But on 5, it has to be modified to
> include("DB/DataObjects.php");
> $pro = DB_DataObject::factory('Product');
> $pro->find();
> while($pro->fetch())
> $allPro[] = clone $pro;
>
> The above is only an example. So upgrading to 5 is not an option for us.
You might want to start a migration path for your code in the near
future. i would suggest something like the following:
<?php
# File: myLib.php
function &myClone( &$someObject )
{
static $init = true;
if( $init )
{
if( (int)phpversion() < 5 )
{
require_once( 'php4Compat.php' );
}
else
{
require_once( 'php5Compat.php' );
}
}
$clone = &compat_myClone( $someObject );
return $clone;
}
# File: php4Compat.php
function &compat_myClone( &$someObject )
{
$clone = $someObject;
return $clone;
}
# File: php5Compat.php
function &compat_myClone( &$someObject )
{
$clone = clone $someObject;
return $clone;
}
?>
This way you can still use PHP4 while providing the necessary changes
for PHP5 before fully switching over.
Cheers,
Rob.
Ps. I used references so PHP4 wouldn't create copies at every
function call :)
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