troubleshooting Question

Can you tell me why I get this error please.?

Avatar of EagleJess
EagleJess asked on
12 Comments2 Solutions144 ViewsLast Modified:
Fatal error: Maximum execution time of 30 seconds exceeded in /var/www/test_qu2.php on line 3

My code is:
   function contain($boxValues, $number) {
     for ($k=0; $k<sizeof($boxValues); $k++) {
       if ($boxValues[$k] == $number)
            return true;
       return false;
   $num[0] = rand(1,21);
   echo $num [0];
   $boxValues[0] = $num[0];
   for ($i=1; $i<=22; $i++) {      
      $num[$i] = rand(0,21);      
      while (contain($boxValues, $num[$i])) {          
         $num[$i] = rand (0,21);      
    $boxValues[$i] = $num[$i];    //append into the array  
      echo "," .$num[$i];
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