Do while loop not looping in php












0















I've been working a loop that repeats incrementally, while displaying the kelvin and fahrenheit counterparts in a table. I'm using a do while loop to do so, however the function does not loop, and does not start on the correct number from the form.



The code I've done so far is:



<body>

<form action="" method="post">

Start temperature in degrees:<input type="text" name="start"></input><br />
End temperature in degrees:<input type="text" name="end"></input><br />
How should the list be incremented?:<input type="text" name="inc"></input><br />

<input type="submit" name="sub" value="Submit"></input><br />

</form>

<?php

$a = 1;

if ($_POST['sub']) {

$a = 0;
$start = $_POST['start'];
$end = $_POST['end'];
$inc = $_POST['inc'];

$x = $start;

do {

$x = $x + $inc;
$y = $x + 273;
$z = (1.8 * $x) + 32;

} while ($x >= $end);

}
?>

<?php
if ($a != 1) {
?>


<table>

<tr>
<th>Celsius</th>
<th>Kelvin</th>
<th>Fahrenheit</th>
</tr>

<tr>
<th>
<?php
echo "$x degrees <br />";
?>
</th>

<th>
<?php
echo "$y degrees <br />";
?>
</th>

<th>
<?php
echo "$z degrees <br />";
?>
</th>
</tr>

</table>


<?php
}
?>


</body>


Would I have to include while loops in the echo part of the table for it to loop? And how would I be able to have the loop start on the same number as the form?










share|improve this question























  • What values are you entering and what is its output?

    – Kamal Paliwal
    Nov 16 '18 at 5:07
















0















I've been working a loop that repeats incrementally, while displaying the kelvin and fahrenheit counterparts in a table. I'm using a do while loop to do so, however the function does not loop, and does not start on the correct number from the form.



The code I've done so far is:



<body>

<form action="" method="post">

Start temperature in degrees:<input type="text" name="start"></input><br />
End temperature in degrees:<input type="text" name="end"></input><br />
How should the list be incremented?:<input type="text" name="inc"></input><br />

<input type="submit" name="sub" value="Submit"></input><br />

</form>

<?php

$a = 1;

if ($_POST['sub']) {

$a = 0;
$start = $_POST['start'];
$end = $_POST['end'];
$inc = $_POST['inc'];

$x = $start;

do {

$x = $x + $inc;
$y = $x + 273;
$z = (1.8 * $x) + 32;

} while ($x >= $end);

}
?>

<?php
if ($a != 1) {
?>


<table>

<tr>
<th>Celsius</th>
<th>Kelvin</th>
<th>Fahrenheit</th>
</tr>

<tr>
<th>
<?php
echo "$x degrees <br />";
?>
</th>

<th>
<?php
echo "$y degrees <br />";
?>
</th>

<th>
<?php
echo "$z degrees <br />";
?>
</th>
</tr>

</table>


<?php
}
?>


</body>


Would I have to include while loops in the echo part of the table for it to loop? And how would I be able to have the loop start on the same number as the form?










share|improve this question























  • What values are you entering and what is its output?

    – Kamal Paliwal
    Nov 16 '18 at 5:07














0












0








0








I've been working a loop that repeats incrementally, while displaying the kelvin and fahrenheit counterparts in a table. I'm using a do while loop to do so, however the function does not loop, and does not start on the correct number from the form.



The code I've done so far is:



<body>

<form action="" method="post">

Start temperature in degrees:<input type="text" name="start"></input><br />
End temperature in degrees:<input type="text" name="end"></input><br />
How should the list be incremented?:<input type="text" name="inc"></input><br />

<input type="submit" name="sub" value="Submit"></input><br />

</form>

<?php

$a = 1;

if ($_POST['sub']) {

$a = 0;
$start = $_POST['start'];
$end = $_POST['end'];
$inc = $_POST['inc'];

$x = $start;

do {

$x = $x + $inc;
$y = $x + 273;
$z = (1.8 * $x) + 32;

} while ($x >= $end);

}
?>

<?php
if ($a != 1) {
?>


<table>

<tr>
<th>Celsius</th>
<th>Kelvin</th>
<th>Fahrenheit</th>
</tr>

<tr>
<th>
<?php
echo "$x degrees <br />";
?>
</th>

<th>
<?php
echo "$y degrees <br />";
?>
</th>

<th>
<?php
echo "$z degrees <br />";
?>
</th>
</tr>

</table>


<?php
}
?>


</body>


Would I have to include while loops in the echo part of the table for it to loop? And how would I be able to have the loop start on the same number as the form?










share|improve this question














I've been working a loop that repeats incrementally, while displaying the kelvin and fahrenheit counterparts in a table. I'm using a do while loop to do so, however the function does not loop, and does not start on the correct number from the form.



The code I've done so far is:



<body>

<form action="" method="post">

Start temperature in degrees:<input type="text" name="start"></input><br />
End temperature in degrees:<input type="text" name="end"></input><br />
How should the list be incremented?:<input type="text" name="inc"></input><br />

<input type="submit" name="sub" value="Submit"></input><br />

</form>

<?php

$a = 1;

if ($_POST['sub']) {

$a = 0;
$start = $_POST['start'];
$end = $_POST['end'];
$inc = $_POST['inc'];

$x = $start;

do {

$x = $x + $inc;
$y = $x + 273;
$z = (1.8 * $x) + 32;

} while ($x >= $end);

}
?>

<?php
if ($a != 1) {
?>


<table>

<tr>
<th>Celsius</th>
<th>Kelvin</th>
<th>Fahrenheit</th>
</tr>

<tr>
<th>
<?php
echo "$x degrees <br />";
?>
</th>

<th>
<?php
echo "$y degrees <br />";
?>
</th>

<th>
<?php
echo "$z degrees <br />";
?>
</th>
</tr>

</table>


<?php
}
?>


</body>


Would I have to include while loops in the echo part of the table for it to loop? And how would I be able to have the loop start on the same number as the form?







php html






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Nov 16 '18 at 5:01









LoganLogan

12




12













  • What values are you entering and what is its output?

    – Kamal Paliwal
    Nov 16 '18 at 5:07



















  • What values are you entering and what is its output?

    – Kamal Paliwal
    Nov 16 '18 at 5:07

















What values are you entering and what is its output?

– Kamal Paliwal
Nov 16 '18 at 5:07





What values are you entering and what is its output?

– Kamal Paliwal
Nov 16 '18 at 5:07












1 Answer
1






active

oldest

votes


















0














is it you need?



<body>
<form action="" method="post">
Start temperature in degrees:<input type="text" name="start"></input><br />
End temperature in degrees:<input type="text" name="end"></input><br />
How should the list be incremented?:<input type="text" name="inc"></input><br />
<input type="submit" name="sub" value="Submit"></input><br />
</form>
<table >
<tr>
<th>Celsius</th>
<th>Kelvin</th>
<th>Fahrenheit</th>
</tr>
<?php
$a = 1;
if (isset($_POST['sub']) && $_POST['sub']) {
$a = 0;
$start = $_POST['start'];
$end = $_POST['end'];
$inc = $_POST['inc'];
$x = $start;
do {
$x = $x + $inc;
$y = $x + 273;
$z = (1.8 * $x) + 32;
?>
<?php
if ($a != 1) {
?>
<tr>
<th><?php echo "$x degrees <br />"; ?></th>
<th><?php echo "$y degrees <br />"; ?></th>
<th><?php echo "$z degrees <br />";?></th>
</tr>
<?php
}
} while ($x >= $end);
}
?>
</table>
</body>





share|improve this answer
























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    is it you need?



    <body>
    <form action="" method="post">
    Start temperature in degrees:<input type="text" name="start"></input><br />
    End temperature in degrees:<input type="text" name="end"></input><br />
    How should the list be incremented?:<input type="text" name="inc"></input><br />
    <input type="submit" name="sub" value="Submit"></input><br />
    </form>
    <table >
    <tr>
    <th>Celsius</th>
    <th>Kelvin</th>
    <th>Fahrenheit</th>
    </tr>
    <?php
    $a = 1;
    if (isset($_POST['sub']) && $_POST['sub']) {
    $a = 0;
    $start = $_POST['start'];
    $end = $_POST['end'];
    $inc = $_POST['inc'];
    $x = $start;
    do {
    $x = $x + $inc;
    $y = $x + 273;
    $z = (1.8 * $x) + 32;
    ?>
    <?php
    if ($a != 1) {
    ?>
    <tr>
    <th><?php echo "$x degrees <br />"; ?></th>
    <th><?php echo "$y degrees <br />"; ?></th>
    <th><?php echo "$z degrees <br />";?></th>
    </tr>
    <?php
    }
    } while ($x >= $end);
    }
    ?>
    </table>
    </body>





    share|improve this answer




























      0














      is it you need?



      <body>
      <form action="" method="post">
      Start temperature in degrees:<input type="text" name="start"></input><br />
      End temperature in degrees:<input type="text" name="end"></input><br />
      How should the list be incremented?:<input type="text" name="inc"></input><br />
      <input type="submit" name="sub" value="Submit"></input><br />
      </form>
      <table >
      <tr>
      <th>Celsius</th>
      <th>Kelvin</th>
      <th>Fahrenheit</th>
      </tr>
      <?php
      $a = 1;
      if (isset($_POST['sub']) && $_POST['sub']) {
      $a = 0;
      $start = $_POST['start'];
      $end = $_POST['end'];
      $inc = $_POST['inc'];
      $x = $start;
      do {
      $x = $x + $inc;
      $y = $x + 273;
      $z = (1.8 * $x) + 32;
      ?>
      <?php
      if ($a != 1) {
      ?>
      <tr>
      <th><?php echo "$x degrees <br />"; ?></th>
      <th><?php echo "$y degrees <br />"; ?></th>
      <th><?php echo "$z degrees <br />";?></th>
      </tr>
      <?php
      }
      } while ($x >= $end);
      }
      ?>
      </table>
      </body>





      share|improve this answer


























        0












        0








        0







        is it you need?



        <body>
        <form action="" method="post">
        Start temperature in degrees:<input type="text" name="start"></input><br />
        End temperature in degrees:<input type="text" name="end"></input><br />
        How should the list be incremented?:<input type="text" name="inc"></input><br />
        <input type="submit" name="sub" value="Submit"></input><br />
        </form>
        <table >
        <tr>
        <th>Celsius</th>
        <th>Kelvin</th>
        <th>Fahrenheit</th>
        </tr>
        <?php
        $a = 1;
        if (isset($_POST['sub']) && $_POST['sub']) {
        $a = 0;
        $start = $_POST['start'];
        $end = $_POST['end'];
        $inc = $_POST['inc'];
        $x = $start;
        do {
        $x = $x + $inc;
        $y = $x + 273;
        $z = (1.8 * $x) + 32;
        ?>
        <?php
        if ($a != 1) {
        ?>
        <tr>
        <th><?php echo "$x degrees <br />"; ?></th>
        <th><?php echo "$y degrees <br />"; ?></th>
        <th><?php echo "$z degrees <br />";?></th>
        </tr>
        <?php
        }
        } while ($x >= $end);
        }
        ?>
        </table>
        </body>





        share|improve this answer













        is it you need?



        <body>
        <form action="" method="post">
        Start temperature in degrees:<input type="text" name="start"></input><br />
        End temperature in degrees:<input type="text" name="end"></input><br />
        How should the list be incremented?:<input type="text" name="inc"></input><br />
        <input type="submit" name="sub" value="Submit"></input><br />
        </form>
        <table >
        <tr>
        <th>Celsius</th>
        <th>Kelvin</th>
        <th>Fahrenheit</th>
        </tr>
        <?php
        $a = 1;
        if (isset($_POST['sub']) && $_POST['sub']) {
        $a = 0;
        $start = $_POST['start'];
        $end = $_POST['end'];
        $inc = $_POST['inc'];
        $x = $start;
        do {
        $x = $x + $inc;
        $y = $x + 273;
        $z = (1.8 * $x) + 32;
        ?>
        <?php
        if ($a != 1) {
        ?>
        <tr>
        <th><?php echo "$x degrees <br />"; ?></th>
        <th><?php echo "$y degrees <br />"; ?></th>
        <th><?php echo "$z degrees <br />";?></th>
        </tr>
        <?php
        }
        } while ($x >= $end);
        }
        ?>
        </table>
        </body>






        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Nov 16 '18 at 7:08









        Trung NguyênTrung Nguyên

        568




        568
































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