Delayed variable expansion

[shunyata]

This works fine:

$content[0] = "string";
$content[1] = "this is a {$content[0]}";
$content[2] = "this is a {$content[0]} saying that {$content[1]}";

 

Suppose however that i cannot control the order of these declarations. Is there a way to delay variable expansion until a time of my choosing? I could of course use eval() to convert from single to double quoted, but again I would have to do that in the right order for recursive expansion.

 

Grateful for any comments.