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  1. <?php
  2. function italico(&$array)
  3. {
  4.     switch (count($array))
  5.     {
  6.     case 0: return null;
  7.     case 1: return $array[0];
  8.     default:    
  9.         $ult = array_pop($array);
  10.         return implode (' ,',$array).' y '.$ult;
  11.     }    
  12. }
  13.  
  14. function alexis($array) {
  15. 	$string = implode(", ", $array);
  16. 	return substr_replace ($string, " y ", strrpos($string, ","), 2);
  17. }
  18.  
  19. $array = range(1, 100);
  20.  
  21. $ini1 = microtime(true) * 1000;
  22. for ($i = 0; $i < 1000; $i++)
  23.     italico($array);
  24. $fin1 = microtime(true) * 1000;
  25. $tiempoItalico = $fin1 - $ini1;
  26.  
  27. $ini2 = microtime(true) * 1000;
  28. for ($i = 0; $i < 1000; $i++)
  29.     alexis($array);
  30. $fin2 = microtime(true) * 1000;
  31. $tiempoAlexis = $fin2 - $ini2;
  32.  
  33. echo "Italico: " . $tiempoItalico."\n";
  34. echo "Alexis: " . $tiempoAlexis;
Success #stdin #stdout 0.01s 20568KB
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Italico: 2.656982421875
Alexis: 1.64697265625
https://ideone.com/MSXcwC
language:
PHP (php 7.3.5)
created:
10 years ago
visibility:
secret

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