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@ 2015-01-18T23:49:25Z

<?php

function FirstFactorial($num) {
  $factorial = "$num";
  for ($i = $num - 1; $i > 0; $i--) {
    $factorial .= " * " . $i ;
  }
  return $factorial; 
} 
echo FirstFactorial(6), PHP_EOL;
echo implode(' * ', range(6, 1, -1));

Output
Performance
VLD
References
Branches

implode: documentation ( source)
range: documentation ( source)

preferences:dark modelive previewkey bindings

182.46 ms | 405 KiB | 5 Q