Php... 01 greater than 1 ???

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  • wbrowse
    #1

    Php... 01 greater than 1 ???

    First, sorry for telling you so little with this issue and leaving it
    for so long without much care from me...

    Below you can find the script that made feel confused (I am an early
    Php beginner but I have to stop as for professional needs I need to
    concentrate my free time on learning VBA...) :

    Test it with 01 as I can't test it on my current configuration(s ee
    below why).

    ===========star t==========


    <html>
    <head>
    </head>

    <body>



    <?php

    //lancer recherche $_POST['submit'] dans fichier aide PHP

    if (!$_POST['submit'])

    {

    ?>

    <form action="<?=$_SE RVER['PHP_SELF']?>" method="post">

    Saisissez un nombre : <input name="nombre" size="2">

    <input type="submit" name="submit" value="Valider" >

    </form>

    <?php

    }

    else

    {

    $nombre = $_POST['nombre'];

    if ($nombre < 0)

    {echo 'Vous avez saissi un nombre -';
    }

    elseif ($nombre 0)

    {echo 'Vous avez saissi +';
    }

    else

    {echo 'Vous avez saissi un nombre neutre';
    }

    }

    ?>

    </body>


    </html>

    ===========end= =========


    As I changed computer, I had to reinstall php, apache and I wanted to
    test this script again but I had this message:

    You don't have permission to access /arch/< on this server.

    The other script I run all are working (with forms...) under XP.

    It's no big issue for me right now as it's confusing learning 2
    languages at the same time... so I am concentrating on vba and leaving
    Php for later...

    Tags: None
    • purcaholic
      #2
      Re: Php... 01 greater than 1 ???

      On 28 Mai, 22:43, wbrowse <wbro...@gmail. comwrote:
      First, sorry for telling you so little with this issue and leaving it
      for so long without much care from me...
      >
      Below you can find the script that made feel confused (I am an early
      Php beginner but I have to stop as for professional needs I need to
      concentrate my free time on learning VBA...) :
      >
      Test it with 01 as I can't test it on my current configuration(s ee
      below why).
      >
      ===========star t==========
      >
      <html>
      <head>
      </head>
      >
      <body>
      >
      <?php
      >
      //lancer recherche $_POST['submit'] dans fichier aide PHP
      >
      if (!$_POST['submit'])
      >
      {
      >
      ?>
      >
      <form action="<?=$_SE RVER['PHP_SELF']?>" method="post">
      >
      Saisissez un nombre : <input name="nombre" size="2">
      >
      <input type="submit" name="submit" value="Valider" >
      >
      </form>
      >
      <?php
      >
      }
      >
      else
      >
      {
      >
      $nombre = $_POST['nombre'];
      >
      if ($nombre < 0)
      >
      {echo 'Vous avez saissi un nombre -';
      >
      }
      >
      elseif ($nombre 0)
      >
      {echo 'Vous avez saissi +';
      >
      }
      >
      else
      >
      {echo 'Vous avez saissi un nombre neutre';
      >
      }
      }
      >
      ?>
      >
      </body>
      >
      </html>
      >
      ===========end= =========
      >
      As I changed computer, I had to reinstall php, apache and I wanted to
      test this script again but I had this message:
      >
      You don't have permission to access /arch/< on this server.
      >
      The other script I run all are working (with forms...) under XP.
      >
      It's no big issue for me right now as it's confusing learning 2
      languages at the same time... so I am concentrating on vba and leaving
      Php for later...
      Maybe you've installed a newer PHP-Version or you've forgott to
      configure PHP. I see the usage of short tags inside your script (<form
      action="<?=$_SE RVER['PHP_SELF']?>" method="post">) .

      If handling of short tags are deactivated (this is the default
      setting), PHP will not parse the code <?=$_SERVER['PHP_SELF']?>.
      Instead of that, the HTML output will contain it as string.

      You can change this behaviour by setting "short_open _tag = Off" in the
      php.ini file, which should be present either normally in C:\WINDOWS\
      or inside the PHP installation directory.

      But the better alternative is not to use short tags syntax and to
      change your script as follows:
      <form action="<?php echo $_SERVER['PHP_SELF']?>" method="post">


      purcaholic

        Comment

        • wbrowse
          #3
          Re: Php... 01 greater than 1 ???

          Thanks,

          For the first issue, I came to understand from a similar post I made
          earlier that the reason why 01 is greater than 1 is because of :

          $nombre = $_POST['nombre']

          the memory address is the one that is being tested and 01 is greater
          than 1 because 01 is 2 characters long... is it the explanation?

          About the second issue, I remember having some php or apache
          configuration issues as I did some installation on different computer
          running windows xp home or pro.... and for some the same configuration
          would work and for others it wouldn't so at some point I had to
          install the xamp all in one software that make things go smoothly.

          For now, I have set the short tag "off" to "on" in php.ini and I have
          also changed the php script to echo $_SERVER but with the first change
          (and with no change in code), it still gives me a forbidden message,
          and for the second change (leaving php.ini "on" or "off"), it does
          nothing when I click submit like, I get the same blank input box as I
          got before entering a number...

          It might be something either very little or something a very early
          irregular php learner like me can't get and so obvious to any one else
          php litterate....

          One last thing, is it okay for someone to learn vba thinking that
          after getting vba skills (after a year or two giving it about 4 hours
          a week), it will be convenient to go on learning php? However so far
          with Vba, it looks closer to java than php. I would like to know an
          open-source language and apart vba, learning those language would just
          be a hobby. But there are so many language and the web technologies
          are moving quite fast ...see ajax... so someone without any IT
          academic like me can feel quite confused.

          Thanks again


            Comment

            • Joe Scylla
              #4
              Re: Php... 01 greater than 1 ???

              wbrowse wrote:
              Thanks,
              >
              For the first issue, I came to understand from a similar post I made
              earlier that the reason why 01 is greater than 1 is because of :
              >
              $nombre = $_POST['nombre']
              >
              the memory address is the one that is being tested and 01 is greater
              than 1 because 01 is 2 characters long... is it the explanation?
              well, php dont support type definitions. That means variables will get
              evaluated based on the operation. I had similar problems with a switch
              statement comparing a value with leading zero with a number. For me it
              looked like the value with leading zero "01" got interpreted as string
              and compared with the number 1 the result is false.

              That should help you out:
              $nombre = (int) $_POST['nombre'];

              More about this topic:
              PHP: Type Juggling - Manual
              http://php.net/manual/en/language.types.type-juggling.php
              Type Juggling

                Comment

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