PHP Loop nested Array - String Replace

<?php
// http://phpfiddle.org/lite/code/rem2-icej
$myarray = array(array("'CALL #__comm_repair_count_dates_by_id ('2015-07-01 00:00:00', '2015-07-31 23:59:59', 842, '5,1,3', @c);'",
                       "'Call #__commissions_by_date_user_wo ('2015-07-01 00:00:00', '2015-07-31 23:59:59', %1,'5,1,3',1.3,842);'"),
                 array("'CALL #__comm_repair_count_dates_by_id ('2015-08-01 00:00:00', '2015-08-31 23:59:59', 842, '5,1,3', @c);'",
                       "'CAll #__commissions_by_date_user_wo ('2015-08-01 00:00:00', '2015-08-15 00:00:00', %1,'5,1,3',1.3,842);'"));
echo '<pre>';
var_dump($myarray);
echo '</pre>';
 for ($i = 0; $i < count($myarray); ++$i) {
     for($j = 0;$j <count($myarray[$i]); ++$j) {
         if($j == 1) {
             print str_replace('%1',33.4,$myarray[$i][$j]) . '<br />';
         } else {
            print $myarray[$i][$j] . '<br />';
         }

     }
   }
?>