Evaluation of vars in strings

[geewhiz]

The normal way php acts is to evaluate a string when it is encountered. For example if you have the following:

$str="Test $var";

php will substitute in the value of $var into this string when it is encountered.

I'm trying to avoid this basic behavior. I would like to evaluate $str sometime later after it is encountered in the script. This is because the value of $var is not define until after $str.

Is it possible to do this?

[lazzerous]

$str="Test "; 

// processing whatever
// $var is now created

$str .= $var;

[crimaniak]

$str='Test $var';

[TheDefender]

Gotta go with Crimaniak on this one... There is no difference between:

$str="Test ";  

// processing whatever 
// $var is now created 

$str .= $var;

AND

// processing whatever 
// $var is now created 

$str = "Test ".$var;
//or
$str = 'Test $var';

Because in your example, there is no other variable defined but $var, and it doesn't matter where $str is defined, so long as it's after the $var is defined...

If you had more than one variable, then I believe lazzerous' example would be more along the lines of what you are looking for. (but you could still make crimaniak's option work better). I mean, if all you are going to do is echo the $str, then why define any of the $str variable until all of the associated variables within have been defined?