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    PHP/if switch

    < PHP
    Revision as of 22:10, 22 June 2006 by imported>mutante (adding PHP syntax highlighting)
    (diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

    If you want to compare one variable to multiple values in PHP, you can do so 2 different ways:

    if / elseif[edit]

    <highlightSyntax> if ($fnord == 23) {

      echo "Found a 23!";
    

    } elseif ($fnord == 17) {

      echo "Found a 17!";
    

    } elseif ($fnord == "Foobar") {

      echo "Fnord is a string!";
    

    } else {

      echo "Nothing special";
    

    } </highlightSyntax>

    OR you can do the same like this

    switch / case[edit]

    <highlightSyntax> switch ($fnord) { case 23:

      echo "Found a 23!";
      break;
    

    case 17:

      echo "Found a 17!";
      break;
    

    case "Foobar":

      echo "Fnord is a string!";
      break;
    

    default:

      echo "Nothing special";
    

    } </highlightSyntax>

    read here why you need the "break"


    Which is Faster ?[edit]

    Now, you might wonder, which is "better" to use?


    Look at this Benchmark provided by Shai-Tan comparing them.

    It turns out that the difference is almost not noticable but switch is a tiny bit faster.

    <@Shai-Tan> mutante:  0.00011
    <@Shai-Tan> mutante: a moral victory at best
    < mutante> Shai-Tan: hehe, ok, somehow it also looks better in the source ;)
    <+jome_> Shai-Tan: Hehe, seems your benchmark made it clear that there isn't a difference :>
    

    from #php on EfNet

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