ereg_replace and associative arrays

[Anon]

I am trying to replace from a text string with values from an associative array.

Everything I have tried so far seems not to work. Any ideas?

Here is an example:
$res = (a row from a database)
$msg = (some text from a user where --varname- should be replaced by the value in the $res associative array)

this gave me an error:
$msg=ereg_replace("--([^{-]*)-","$res[\1]",$msg);}

as did this

$msg=ereg_replace("--([^{-]*)-","$res[\"\1\"]",$msg);}

and this did not reutnr the value (but didnt error)

$msg=ereg_replace("--([^{-]*)-",$res["\1"],$msg);}

[Anon]

This is a test

[intenz]

Use preg_replace.

[Anon]

do you have an example. I have tried every iteration i could think of and nothing works.

thanks for any help

[intenz]

No, you're right, ereg_replace should work.