Problem with array...

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  • Leszek
    #1

    Problem with array...

    I have a form with 5 dropdown lists I want to put all selected values to an
    array called $data[] so i wrote sometthing like this:

    for(i=0;i<5;i++ ){
    echo"<select name=\"\$data[]\">";
    echo"<option value=\"1\">1</option>";
    echo"<option value=\"1\">2</option>";
    echo"<option value=\"1\">3</option>";
    echo"</select>";
    }

    So I think this will put all selected values into an array.
    But the problem is that when user submits the form this array goes to $_POST
    array
    And I have no idea how to read a value from an array $data which is into
    array $_POST and use it as a part of "if" statement

    for example
    if (value_from_arr ay==5){
    // instructions
    }

    Thanks for help
    Leszek


    Tags: None
    • J.O. Aho
      #2
      Re: Problem with array...

      Leszek wrote:[color=blue]
      > I have a form with 5 dropdown lists I want to put all selected values to an
      > array called $data[] so i wrote sometthing like this:
      >
      > for(i=0;i<5;i++ ){
      > echo"<select name=\"\$data[]\">";
      > echo"<option value=\"1\">1</option>";
      > echo"<option value=\"1\">2</option>";
      > echo"<option value=\"1\">3</option>";
      > echo"</select>";
      > }
      >
      > So I think this will put all selected values into an array.
      > But the problem is that when user submits the form this array goes to $_POST
      > array
      > And I have no idea how to read a value from an array $data which is into
      > array $_POST and use it as a part of "if" statement[/color]


      $value_from_arr ay=$_POST['$data'];
      //for example
      if ($value_from_ar ray[0]==5){
      // instructions
      }

      But would be easier you didn't use the $ in the name

      for(i=0;i<5;i++ ){
      echo"<select name=\"\data[]\">";
      echo"<option value=\"1\">1</option>";
      echo"<option value=\"1\">2</option>";
      echo"<option value=\"1\">3</option>";
      echo"</select>";
      }

      $value_from_arr ay=$_POST['data'];
      if ($value_from_ar ray[0]==5){
      // instructions
      }



      //Aho

        Comment

        • my.hero@web.de
          #3
          Re: Problem with array...

          I don't exactly understand what you want to do but I hope this will
          help ypu getting your values:

          <!-- *snip* -->

          <html>
          <form action="NewFile .php" method="POST">

          <?

          for($i=0;$i<5;$ i++){
          echo"<select name=\"test[]\">";
          echo"<option value=\"1\">1</option>";
          echo"<option value=\"2\">2</option>";
          echo"<option value=\"3\">3</option>";
          echo"</select>";



          }

          ?>
          <INPUT type="submit">
          </form>


          <?

          # this will show you all values that are in $_POST
          echo '<pre>', print_r($_POST) , '</pre>';

          # extract the array that contains all 5 values of the drop downs
          $your_data = $_POST["test"];

          # display the array
          echo '<pre>', print_r($your_d ata), '</pre>';

          # run through the array
          foreach ($your_data as $value_from_arr ay)
          {
          # ...and do with the values whatever you want to do
          if ($value_from_ar ray==5)
          {
          // instructions
          # :-)
          }
          }

          ?>

          </html>

          <!-- *snap* -->






          Leszek schrieb:
          [color=blue]
          > I have a form with 5 dropdown lists I want to put all selected values to an
          > array called $data[] so i wrote sometthing like this:
          >
          > for(i=0;i<5;i++ ){
          > echo"<select name=\"\$data[]\">";
          > echo"<option value=\"1\">1</option>";
          > echo"<option value=\"1\">2</option>";
          > echo"<option value=\"1\">3</option>";
          > echo"</select>";
          > }
          >
          > So I think this will put all selected values into an array.
          > But the problem is that when user submits the form this array goes to $_POST
          > array
          > And I have no idea how to read a value from an array $data which is into
          > array $_POST and use it as a part of "if" statement
          >
          > for example
          > if (value_from_arr ay==5){
          > // instructions
          > }
          >
          > Thanks for help
          > Leszek[/color]

            Comment

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