Help needed in looping through variable names

I need some help getting a loop together.  Basically, I have variables named, chkbox1, chkbox2, chkbox3, etc.  There are 64 of them total.  I want to loop through them all and see if they are set.  

For example:

for ( $i=1;$i<64;$i++ ) {
     if ( isset($ChkBox,$i) ) {
          echo "Variable ChkBox", $i, " is set", "<br>";

Who is Participating?
ZylochConnect With a Mentor Commented:
for ($i = 1; $i <= 64; $i++) {
    $curvar = 'ChkBox' . $i;
    if (isset($$curvar)) {
        echo 'Variable ' . $curvar . ' is set<br>';
QuetysisAuthor Commented:
Thank you!!!!!
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