passing variables to other pages

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  • julian maisano
    #1

    passing variables to other pages

    As you'll see, I'm a beginner php guy...

    What i'm trying to achieve is:

    1) List in AllProducts.php a set of products which are stored in a MySql
    table. Each product has a picture. Each picture actually is a link to a
    articulodetalle .php, where there will be greater pictures in, plus some
    detailed text.


    Code in AllProducts.php actually works fine:

    $query = "SELECT * FROM articulos";
    $result = mysql_query($qu ery);
    $i=0;
    while($row = mysql_fetch_arr ay($result, MYSQL_ASSOC))
    {
    if($i==$public_ numero_de_items _por_fila){ //acá cambia de columna
    $i=0;
    echo "<TR><TH>";
    } else {
    echo "<TH>";
    }
    $i+=1;
    //here I set up the link to detallearticulo .php *******
    echo '<a href="detallear ticulo.php?id_a rticulo=' . $row['id_articulo']
    .. '">';
    echo '<img width="150" border="0" src="images/' . $row['id_articulo']
    .. '.jpg" >';
    echo '</a>';
    echo "<br>";
    echo "id_articul o :{$row['id_articulo']} <br>";
    echo "descripcio n :{$row['descripcion']} <br>";
    echo "precio : {$row['precio']} <br><br>";
    }


    ***** an example of the the link created (in AllProducts.php )is:

    detallearticulo .php?id_articul o=xyz325


    The problem i'm having is that I've an empty variable value in
    detallearticulo .php

    $id_articulo (in detallearticulo .php)should have the variable value
    associated with the product (xyz325), but it's empty...

    What's happening?
    Any advice would be apreciated...

    sdos - jm
    Tags: None
    • Shelly
      #2
      Re: passing variables to other pages


      "julian maisano" <julianmaisanoX YZ@gmail.com> wrote in message
      news:db9m1e$iq8 $1@domitilla.ai oe.org...[color=blue]
      > As you'll see, I'm a beginner php guy...
      >
      > What i'm trying to achieve is:
      >
      > 1) List in AllProducts.php a set of products which are stored in a MySql
      > table. Each product has a picture. Each picture actually is a link to a
      > articulodetalle .php, where there will be greater pictures in, plus some
      > detailed text.
      >
      >
      > Code in AllProducts.php actually works fine:
      >
      > $query = "SELECT * FROM articulos";
      > $result = mysql_query($qu ery);
      > $i=0;
      > while($row = mysql_fetch_arr ay($result, MYSQL_ASSOC))
      > {
      > if($i==$public_ numero_de_items _por_fila){ //acá cambia de columna
      > $i=0;
      > echo "<TR><TH>"; } else {
      > echo "<TH>";
      > }
      > $i+=1;
      > //here I set up the link to detallearticulo .php *******
      > echo '<a href="detallear ticulo.php?id_a rticulo=' . $row['id_articulo'] .
      > '">';
      > echo '<img width="150" border="0" src="images/' . $row['id_articulo'] .
      > '.jpg" >';
      > echo '</a>';
      > echo "<br>";
      > echo "id_articul o :{$row['id_articulo']} <br>";
      > echo "descripcio n :{$row['descripcion']} <br>";
      > echo "precio : {$row['precio']} <br><br>";
      > }
      >
      >
      > ***** an example of the the link created (in AllProducts.php )is:
      >
      > detallearticulo .php?id_articul o=xyz325
      >
      >
      > The problem i'm having is that I've an empty variable value in
      > detallearticulo .php
      >
      > $id_articulo (in detallearticulo .php)should have the variable value
      > associated with the product (xyz325), but it's empty...
      >
      > What's happening?
      > Any advice would be apreciated...
      >
      > sdos - jm[/color]

      in detallearticulo .php do you have line like?

      $id_articulo = $_GET['id_articulo'];

      Shelly


        Comment

        • julian maisano
          #3
          Re: passing variables to other pages

          Shelly wrote:[color=blue]
          > "julian maisano" <julianmaisanoX YZ@gmail.com> wrote in message
          > news:db9m1e$iq8 $1@domitilla.ai oe.org...
          >[color=green]
          >>As you'll see, I'm a beginner php guy...
          >>
          >>What i'm trying to achieve is:
          >>
          >>1) List in AllProducts.php a set of products which are stored in a MySql
          >>table. Each product has a picture. Each picture actually is a link to a
          >>articulodetal le.php, where there will be greater pictures in, plus some
          >>detailed text.
          >>
          >>
          >>Code in AllProducts.php actually works fine:
          >>
          >>$query = "SELECT * FROM articulos";
          >>$result = mysql_query($qu ery);
          >>$i=0;
          >>while($row = mysql_fetch_arr ay($result, MYSQL_ASSOC))
          >>{
          >>if($i==$publi c_numero_de_ite ms_por_fila){ //acá cambia de columna
          >>$i=0;
          >>echo "<TR><TH>"; } else {
          >>echo "<TH>";
          >>}
          >>$i+=1;
          >>//here I set up the link to detallearticulo .php *******
          >>echo '<a href="detallear ticulo.php?id_a rticulo=' . $row['id_articulo'] .
          >>'">';
          >>echo '<img width="150" border="0" src="images/' . $row['id_articulo'] .
          >>'.jpg" >';
          >>echo '</a>';
          >>echo "<br>";
          >>echo "id_articul o :{$row['id_articulo']} <br>";
          >>echo "descripcio n :{$row['descripcion']} <br>";
          >>echo "precio : {$row['precio']} <br><br>";
          >>}
          >>
          >>
          >>***** an example of the the link created (in AllProducts.php )is:
          >>
          >>detallearticu lo.php?id_artic ulo=xyz325
          >>
          >>
          >>The problem i'm having is that I've an empty variable value in
          >>detallearticu lo.php
          >>
          >>$id_articul o (in detallearticulo .php)should have the variable value
          >>associated with the product (xyz325), but it's empty...
          >>
          >>What's happening?
          >>Any advice would be apreciated...
          >>
          >>sdos - jm[/color]
          >
          >
          > in detallearticulo .php do you have line like?
          >
          > $id_articulo = $_GET['id_articulo'];
          >
          > Shelly
          >
          >[/color]

          Absolutely not :(

          I didn't know it was requeired. I'll look to php.net to see what the
          hell is $_GET ...

          By the way, I looked an example that didn't have $_GET and worked though

          thanks - jm

            Comment

            • Dave
              #4
              Re: passing variables to other pages

              julian maisano (julianmaisanoX YZ@gmail.com) decided we needed to
              hear...[color=blue]
              > As you'll see, I'm a beginner php guy...
              >
              > What i'm trying to achieve is:
              >
              > 1) List in AllProducts.php a set of products which are stored in a MySql
              > table. Each product has a picture. Each picture actually is a link to a
              > articulodetalle .php, where there will be greater pictures in, plus some
              > detailed text.
              >
              >
              > Code in AllProducts.php actually works fine:
              >
              > $query = "SELECT * FROM articulos";
              > $result = mysql_query($qu ery);
              > $i=0;
              > while($row = mysql_fetch_arr ay($result, MYSQL_ASSOC))
              > {
              > if($i==$public_ numero_de_items _por_fila){ //acá cambia de columna
              > $i=0;
              > echo "<TR><TH>";
              > } else {
              > echo "<TH>";
              > }
              > $i+=1;
              > //here I set up the link to detallearticulo .php *******
              > echo '<a href="detallear ticulo.php?id_a rticulo=' . $row['id_articulo']
              > . '">';
              > echo '<img width="150" border="0" src="images/' . $row['id_articulo']
              > . '.jpg" >';
              > echo '</a>';
              > echo "<br>";
              > echo "id_articul o :{$row['id_articulo']} <br>";
              > echo "descripcio n :{$row['descripcion']} <br>";
              > echo "precio : {$row['precio']} <br><br>";
              > }
              >
              >
              > ***** an example of the the link created (in AllProducts.php )is:
              >
              > detallearticulo .php?id_articul o=xyz325
              >
              >
              > The problem i'm having is that I've an empty variable value in
              > detallearticulo .php
              >
              > $id_articulo (in detallearticulo .php)should have the variable value
              > associated with the product (xyz325), but it's empty...
              >
              > What's happening?
              > Any advice would be apreciated...
              >
              > sdos - jm
              > [/color]

              You seem to be assuming that $id_articulo will be set for you
              automatically. If register_global s is on in php.ini then that
              is what will happen, however register_global s is a potential
              security risk (when not used correctly) and so its default
              value is off since PHP 4.2

              The "correct" way to access the variable passed from your first
              script is to use $_GET['id_articulo'] instead of $id_articulo

              --
              Dave <dave@REMOVEbun dook.com>
              (Remove REMOVE for email address)

                Comment

                • Shelly
                  #5
                  Re: passing variables to other pages

                  "julian maisano" <julianmaisanoX YZ@gmail.com> wrote in message
                  news:dba2ch$3d7 $1@domitilla.ai oe.org...[color=blue]
                  > Shelly wrote:[color=green]
                  >> in detallearticulo .php do you have line like?
                  >>
                  >> $id_articulo = $_GET['id_articulo'];
                  >>
                  >> Shelly[/color]
                  >
                  > Absolutely not :(
                  >
                  > I didn't know it was requeired. I'll look to php.net to see what the hell
                  > is $_GET ...
                  >
                  > By the way, I looked an example that didn't have $_GET and worked though
                  >
                  > thanks - jm[/color]

                  When you pass values in the caller page by:

                  calledpage,php? thing1=value1&t hing2=value2

                  you get them in the called page, calledpage.php, by:

                  $variable1 = $_GET['thing1'];
                  $variable2 = $_GET['thing2'];

                  Shelly


                    Comment

                    • Peter van Schie
                      #6
                      Re: passing variables to other pages

                      julian maisano wrote:
                      [color=blue]
                      > Absolutely not :(
                      >
                      > I didn't know it was requeired. I'll look to php.net to see what the
                      > hell is $_GET ...
                      >
                      > By the way, I looked an example that didn't have $_GET and worked though[/color]

                      It does when register_global s is set to On in php.ini (which is a bad
                      idea). Another way is to first call:

                      extract($_GET, EXTR_SKIP);

                      and then do what you used to do. I wouldn't use that though and stick
                      with using $_GET['xx'], because you'll see immediately that the variable
                      in question is a GET variable and it's safer.

                      --
                      http://www.phpforums.nl

                        Comment

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