How do I make a variable increment by adding a counter variable to the end inside a while loop [duplicate]

Question

I am trying to get a variable to increment by adding a counter to the end of it. Here is the code.

$counter = 0;
while($results = $query->fetch_assoc()){
        $var . ++$counter = $results['row'];
    } // while loop

My target outcome...

$var1 = result 1
$var2 = result 2
$var3 = result 3

It is trying to set $counter = result.

Your code is invalid, you cannot assign to an expression like $var . ++$counter. — Cristik
– Cristik, Commented May 28, 2015 at 10:40
I know. That is why I'm asking in here. It obviously didnt work. If I knew how to do it, it would be pointless to ask the question. — KDJ
– KDJ, Commented May 28, 2015 at 10:44

Daan · Accepted Answer · 2015-05-28 13:01:25Z

2

To make a variable variable you can use {}:

$counter = 0;
while($results = $query->fetch_assoc()){
   ${"var".++$counter} = $results['row'];
} // while loop

edited May 28, 2015 at 13:01

answered May 28, 2015 at 10:35

Daan

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3 Comments

KDJ Over a year ago

wow. I should have known that. I just did something similar the other day. Thanks!

briosheje Over a year ago

Just a side note (For your information only, @KDJ), this works as well with strings: "{$result['row']} is the result of {$var} at counter {++$counter}";

KDJ Over a year ago

that seemed to make $var an array. Why is this?

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