Codezwiz >> Forums >> Javascript Help >> String Expressions as Identifiers

I know a way in Javascript to do what i need to do, but i need to do about the same thing in PHP:

String Expressions as Identifiers
The ability to build the string used as the property name can be very useful in loops and with dynamically generating web pages (server side) that have variable length content. The strings can be the result of expressions that concatenate string literals with variables

Javascript Ex:

<form name="formName" action="#">
<input type="text" name="field_1">
<input type="text" name="field_2">
<input type="text" name="field_3">
</form>
- the following loop will clear the value property of each element it turn:-

for(var c = 1;c < 4;c++){
document.forms["formName"].elements["field_"+c].value = "";

NOW, i will give a small PHP cript that would require to do the same thing, I KNOW i could use aray etc.. but i need to know how to do it this way.

$var_1 = "hi";
$var_2 = "how";
$var_3 = "are";
$var_3 = "you";

for($i=0;$i<4;$i++) {
echo $var.$i;
}

Now, echo $var.$i will not work but how to make a string from 2 sting and this will identifie the var: $var_1

Anyway i am not sure if a am clear, i have been loking everywhere on the web for this, i only find ppl that say it possible, but know one say how

Thanks for the Help
warhawk911