document.write('
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  1. <?php
  2. function filter($var){
  3. if ($var == 'jeruk') {
  4. return($var);
  5. }
  6. }
  7. $buah=array("melon","semangka","nangka","jeruk","jeruk");
  8. print_r(array_filter($buah,"filter"));
  9. ?>
  10.  
  11. #HASIL RUNNING
  12. Array ( [3] => jeruk [4] => jeruk )
');