How to print $a$b (together)?

Hi,

I forgot how to print out two variable side by side.

here's my code, but it is not working... care to enlighten me? Thanks.

$num="2";

$main1="dog";
$main2="cat";

for ($i = 1; $i <= $num; $i++) {

echo $main$i; // this will print out "dog" and followby "cat"

}
?>

echo $main."".$i;

onther way

echo $a,$b;
or
echo "$a,$b"

Actually, one might as well use:

echo $a . $b;

Concatenating with an empty string is silly, and echo "$a,$b" isnt correct.

echo $main."".$i;
echo $main . $i;

i got "12" for above code..

i think he wants the variable being echoed to be dynamic so everytime it goes through the loop it changes i.e from main1 to main2, main3 etc

an easy way of doing this would be

<?php
$num = 2;
$main1 = "dog";
$main2 = "cat";

for ($i=0;$i<$num;$i++) {
    $var = "main".$i;
    echo $$varl;
}
?>

Thanks.

hmm... but that begs the question - why not use an array?

<?php
$main = array("dog", "cat");

$num = count($main);
for ($i = 0; $i < $num; ++$i) {
	echo $main[$i];
}
?>

Variable variables arent necessarily the right tool for the job here.

that is even better 🙂