you can reset an array within a while() but not a foreach();

array-reset.php

<?php
  $test = array(1,2,3,4,5,6,7,8,9,0);
  $find = 4;
  foreach($test as $t){
    echo $t.',';
    if($t=='4' && $find==4){
      echo 'found!,';
      $find = 6;
      reset($test);
    }
  }
  echo ';<br><br><br>'."\n\n";
  
  reset($test);
  $find = 4;
  while(list($i,$t) = each($test)){
    echo $t.',';
    if($t=='4' && $find==4){
      echo 'found!,';
      $find = 6;
      reset($test);
    }
  }
  echo ';';exit;