Echo result triggers a color change in the table cell

Question

Echo result triggers a color change in the table cell

Working on a piece of code that should change the background color of the first td element based on ping results. If success, it becomes green; if failed, it turns red.

The issue I'm facing is that while I can display images or use different methods to achieve this effect, all I want is to alter the background-color property directly in the td tag before the IP address. What am I missing here?

<table  height="630" class="table">
    <tr>
        <td width="5" >
        <?php
            $str = exec("ping -n 1 -w 1 10.9.1.1", $input, $result);
            if ($result == 0){ echo "<style='background-color:green;'>";}
            else{ echo "<style='background-color:red;'>";}
        ?>
        </td>
        <td width="50">10.9.1.1</td>
    </tr>
</table>

php html css

Answer 1

Answer №1

style needs to be included as an attribute within the td tag, rather than being a standalone tag. Therefore, do not close the td tag immediately; instead, echo the style attribute (without including the opening < that is present in your code) before closing the td tag:

<table  height="630" class="table">
    <tr>
        <td width="5" 
        <?php
           $str = exec("ping -n 1 -w 1 10.9.1.1", $input, $result);
           if ($result == 0){echo "style='background-color:green;'>";}
           else{ echo "style='background-color:red;'>";}
        ?>
        </td>
        <td width="50">10.9.1.1</td>
     </tr>
</table>

Answer 2

style needs to be included as an attribute within the td tag, rather than being a standalone tag. Therefore, do not close the td tag immediately; instead, echo the style attribute (without including the opening < that is present in your code) before closing the td tag:

<table  height="630" class="table">
    <tr>
        <td width="5" 
        <?php
           $str = exec("ping -n 1 -w 1 10.9.1.1", $input, $result);
           if ($result == 0){echo "style='background-color:green;'>";}
           else{ echo "style='background-color:red;'>";}
        ?>
        </td>
        <td width="50">10.9.1.1</td>
     </tr>
</table>

Answer 3

Answer №2

To ensure proper styling in HTML, it's important to apply styles directly to the td element within a table. Alternatively, you can use if statements to dynamically generate different td elements based on conditions. Here's an example:

<table height="630" class="table">
  <tr>
    <?php
    $str = exec("ping -n 1 -w 1 10.9.1.1", $input, $result);
    if ($result == 0):?>
        <td width="5" style="background-color:green;">
    <?php else :?>
        <td width="5" style="background-color:red;">
    <?php endif;>
        </td>
    <td width="50">10.9.1.1</td>
  </tr>
</table>

Answer 4

To ensure proper styling in HTML, it's important to apply styles directly to the td element within a table. Alternatively, you can use if statements to dynamically generate different td elements based on conditions. Here's an example:

<table height="630" class="table">
  <tr>
    <?php
    $str = exec("ping -n 1 -w 1 10.9.1.1", $input, $result);
    if ($result == 0):?>
        <td width="5" style="background-color:green;">
    <?php else :?>
        <td width="5" style="background-color:red;">
    <?php endif;>
        </td>
    <td width="50">10.9.1.1</td>
  </tr>
</table>

Answer 5

Answer №3

A

<style='background-color:green;'>

is not a standalone style tag that exists.

You can simply add the CSS rule directly into the style attribute of your <td>:

<table  height="630" class="table">
  <tr>
    <td width="5" style="
      <?php
      $str = exec('ping -n 1 -w 1 10.9.1.1', $input, $result);
      if ($result == 0){
        echo 'background-color:green;';
      } else {
        echo 'background-color:red;';
      }
      ?>
    ">
    </td>
    <td width="50">10.9.1.1</td>
  </tr>
</table>

Answer 6

A

<style='background-color:green;'>

is not a standalone style tag that exists.

You can simply add the CSS rule directly into the style attribute of your <td>:

<table  height="630" class="table">
  <tr>
    <td width="5" style="
      <?php
      $str = exec('ping -n 1 -w 1 10.9.1.1', $input, $result);
      if ($result == 0){
        echo 'background-color:green;';
      } else {
        echo 'background-color:red;';
      }
      ?>
    ">
    </td>
    <td width="50">10.9.1.1</td>
  </tr>
</table>

Echo result triggers a color change in the table cell

Answer №1

Answer №2

Answer №3

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