PHP, RegEx and Objects

> I've been playing around with my code:
>
> <pre><?
> class Image{
> function display(){
> return '[Here goes image tag]';
> }
> }
> $img1=new Image();
> echo preg_replace('/i/', $img1->display(), "This is a test\n");
> echo preg_replace('/i/e', '$img1->display()', "This is a test\n");
> echo preg_replace('/i/e', '$img2=new Image(); $img2->display();',
> "This is a test\n")
> ?>
>
> This prints:
>
> Th[Here goes image tag]s [Here goes image tag]s a test
> Th[Here goes image tag]s [Here goes image tag]s a test
> ThObjects Objects a test
>
>
> Could it be a variable scope issue?


I don't think so. Actually, variable initialization and method call must
be in the same replace pattern.

--
Alexandre Lahure
Point 52, Solutions Internet "Ready to Start"
http://www.point52.com/

"Computers are like air conditioners,
They don't work when you open windows"

Alexandre Lahure <admin@point52.com> wrote in message news:<opryfb14hcyq0v8u@news.wanadoo.fr>...
> Yes, it works, thank you, but I can't stop thinking it's cheating. I'm
> sure there is a way to do this "fairly", or the PHP manual is lying about
> the power of the 'e' modifier of preg_replace().
>
> One day, truth will be mine...

I don't think so.
You pass two calls of functions to preg_replace, since your first
function returns something (object), preg_replace will use this for
replacement.
You also can write a wrapper function:

<?php
imgDisplay($img_id) {
$img = new Image($img_id);
return $img->display();
}
?>

This will work, too.