Web Development

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• January 31, 2024 at 9:54 pm #4213414
  

  How to use session variables to in properties of HTML form input

  by apn72 · about 4 days, 7 hours ago

  Tags: Software, Web development, Windows

  In the PHP plugin file, I’m setting two session variables:
  $_SESSION[‘snameclr’] =”black”;
  $_SESSION[‘sNameEnab’] =False;

  I want to use these variables in an HTML form:
  Snameclr will be the background of an element;
  sNameEnab specifies whether the input is enabled.

  This is the HTML line defining the input:
  <td><input type=”text” name=”sname” id=”sname” maxlength=”25″ value=”<?PHP
  echo $_SESSION[‘sname’];?>” DISABLED required
  style=”background-color<?php $_SESSION[‘snameclr’]?>
  ;”

  The WordPress page says “unexpected token “}” which I presume because the use of snameclr is ioncorrect; how can I correct this?
  How can I use sNameEnab to set whether the input is enabled? Thanks for any ideas

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• • January 31, 2024 at 10:04 pm #4213418
    

    Background-color is now working

    by apn72 · about 4 days, 7 hours ago

    In reply to How to use session variables to in properties of HTML form input

    I changed the line to:
    <td><input type=”text” name=”sname” id=”sname” maxlength=”25″ value=”<?PHP
    echo $_SESSION[‘sname’];?>” DISABLED required
    style=”background-color:<?php echo $_SESSION[‘snameclr’];?>
    “></td>
    Background colour now working but am still puzzled about setting enabled/disabled.

    • February 1, 2024 at 5:16 am #4213447
      

      Re: disabled

      by kees_b · about 4 days ago

      In reply to Background-color is now working

      Since you write it’s DISABLED, it’s disabled. And $_SESSION[‘sNameEnab’] (which is set to false) isn’t used at all in the code. So it stays disabled.

      And in the code you use $_SESSION[‘sname’], but you don’t tell about its setting.

      • February 1, 2024 at 11:59 am #4213504
        

        Reply To: How to use session variables to in properties of HTML form input

        by apn72 · about 3 days, 17 hours ago

        In reply to Re: disabled

        sname is the input that want to be enabled or disabled, dependant upon sNameEnab. I can’t what to replace the “DISABLED” keyword with to achieve that. I tried DISABLED=<?php echo $_SESSION[‘sNameEnab’];?> but it doesn’t work.

      • February 2, 2024 at 4:27 am #4213575
        

        Re: input

        by kees_b · about 3 days, 1 hour ago

        In reply to Reply To: How to use session variables to in properties of HTML form input

        Input fields can have the attribute “disabled”. Then they are disabled. There’s no attribute “enabled” because that’s the default. So to enable it, leave out the “disabled”.

        https://www.w3schools.com/tags/att_disabled.asp tells to write a javascript to remove it dynamically.
        https://www.w3schools.com/JSREF/met_element_removeattribute.asp shows how to do that.

        Let me add that the combination disabled (you can’t fill it) and required (you must fill it) seems strange.

  • February 4, 2024 at 5:00 pm #4213813
    

    . Here’s a revised HTML line

    by hassaansiddiqui200215 · about 12 hours, 31 minutes ago

    In reply to How to use session variables to in properties of HTML form input

    To use the session variables in your HTML form, you need to correct the way you’re setting the background color and enabling the input field. Here’s a revised HTML line:

    <td><input type=”text” name=”sname” id=”sname” maxlength=”25″ value=”<?php echo $_SESSION[‘sname’]; ?>” <?php echo ($_SESSION[‘sNameEnab’] ? ” : ‘disabled’); ?> style=”background-color: <?php echo $_SESSION[‘snameclr’]; ?>;”>

    In this code, we use a conditional statement (<?php echo ($_SESSION[‘sNameEnab’] ? ” : ‘disabled’); ?>) to check the value of sNameEnab and determine whether the input should be enabled or disabled. We also corrected the style attribute to properly set the background color. This should resolve the “unexpected token ‘}'” error and correctly use the session variables in your HTML form.

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