PHP Forum

**BiggyE** · 04-13-2011, 06:05 PM

I am trying to be able to have the numbers in the rows(columns) to be able to either increment or decrement via user input by radio button on the HTML form page.I have included both the HTML page and the PHP page.

HTML Code:

<html>
<head>
    <title>form</title>
    <style type="text/css">
body {background-color:yellow}
</style>
    
</head>
<body>
<form name="input" action="formout.php" method="post">
number of rows: <input type="text" name="rows" />
number of cells: <input type="text" name="cells" /></br>
Beginning Number: <input type="text" name="beginning" />&nbsp;
Ending Number: <input type="text" name="ending" /><br />
<input type="radio" name="count" value="up" /> Up<br />
<input type="radio" name="count" value="down" /> Down<br />
Skip Number: <input type="text" name="skip" /><br />
<input type="submit" value="Submit" />
</form>
</body>
</html>

PHP Code:


			
<?php
$rows_incoming=$_POST['rows'] ;
$cells_incoming=$_POST['cells'] ;
$count_start=$_POST['beginning'];
$count_end=$_POST['ending'];
$skip=$_POST['skip'];
$across_start=$_POST['across'];
$across_end=$_POST['toacross'];
$count_up=$_POST['up'];
$count_down=$_POST['down'];


echo "<table  border=1 width=100%>";
$starting_integer=0;
for($rows=1;$rows<=$rows_incoming;$rows++){
    echo "<tr>";
    for($cells=1;$cells<=$cells_incoming;$cells++){
        echo "<td>";
        for ($count=$count_start+$starting_integer ; $count<=$count_end+$starting_integer ; $count++) {
        
        elseif
            ($count=$count_up+$starting_integer ; $count>=$count_down+$starting_integer ; $count--) {
            else
                ($count%$skip)
                    echo "<br />" . $count . "<br />" ;
            }
        }
        echo "</td>";
        
    }
    echo "</tr>";
}
echo "</table>";
?>

any help would be appreciated.

**BiggyE** · 04-13-2011, 08:37 PM

here is the modified code i just tried, but im getting a parse error.

Parse error: syntax error, unexpected T_ELSE in C:\xampp\htdocs\formout.php on line 21

HTML Code:

<html>
<head>
    <title>form</title>
    <style type="text/css">
body {background-color:yellow}
</style>
    
</head>
<body>
<form name="input" action="formout.php" method="post">
number of rows: <input type="text" name="rows" />
number of cells: <input type="text" name="cells" /></br>
Beginning Number: <input type="text" name="beginning" />&nbsp;
Ending Number: <input type="text" name="ending" /><br />
<input type="radio" name="increment" value="1"> Increment<br />
<input type="radio" name="increment" value="0"> Decrement<br />
Skip Number: <input type="text" name="skip" /><br />
<input type="submit" value="Submit" />
</form>
</body>
</html>

PHP Code:


			
<?php

$rows_incoming=$_POST['rows'] ;

$cells_incoming=$_POST['cells'] ;

$count_start=$_POST['beginning'];

$count_end=$_POST['ending'];

$skip=$_POST['skip'];

$across_start=$_POST['across'];

$across_end=$_POST['toacross'];





echo "<table  border=1 width=100%>";

$starting_integer=0;

for($rows=1;$rows<=$rows_incoming;$rows++){

    echo "<tr>";

    for($cells=1;$cells<=$cells_incoming;$cells++){

        echo "<td>";

        if(isset($_POST["increment"])){

    if($_POST["increment"]==1){

     for($count=$count_start+$starting_integer ; $count<=$count_end+$starting_integer ; $count++) // do increment what you need

    

    else{

     ($count=$count+$starting_integer ; $count>=$count+$starting_integer ; $count--) // otherwise decrement

        }

    }

                    echo "<br />" . $count . "<br />" ;

            

    }    

        echo "</td>";

        

    }

    echo "</tr>";

}

echo "</table>";

?>

**mgraphic** · 04-13-2011, 10:41 PM

It seems like your logic is messed up, and you are unable to use a for statement as a conditional statement which is why you are getting the fatal error. I tried to manipulate the logic below, which made more sense to me.

I tried to make coments to explain what the sections are doing in the processing section.

PHP Code:


			
<html>
  <head>
  <title>form</title>
  <style type="text/css">
  body {background-color:yellow}
  label {display:block}
  </style>
  </head>
  <body>
  
<?php
  
if (empty($_POST))
{
  
?>
  <form name="input" action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post">
    <label for="rows">Number of rows: <input type="text" name="rows" id="rows" /></label>
    <label for="columns">Number of columns: <input type="text" name="columns" id="columns" /></label>
    <label for="starting">Starting number: <input type="text" name="starting" id="starting" /></label>
    <label for="display">Display count: <input type="text" name="display" id="display" /></label>
    <label for="skip">Multiply skip count by: <input type="text" name="skip" id="skip" /></label>
    <label for="order-asc"><input type="radio" name="order" id="order-asc" value="asc" /> Increment</label>
    <label for="order-desc"><input type="radio" name="order" id="order-desc" value="desc" /> Decrement</label>
    <input type="submit" value="Submit" />
  </form>
<?php
  
}
else
{
  
  // Prepare input:
  $rows = ($_POST['rows'] > 1) ? (int)$_POST['rows'] : 1;
  $columns = ($_POST['columns'] > 1) ? (int)$_POST['columns'] : 1;
  $display = ($_POST['display'] > 1) ? (int)$_POST['display'] : 1;
  $skip = ($_POST['skip'] > 1) ? (int)$_POST['skip'] : 1;
  $starting = (int)$_POST['starting'];
  $starting = (int)$_POST['starting'];
  
  
  // Create number sequence array:
  $numbering = array();
  
  // Increment or decrement logic
  if ($_POST['order'] == 'desc') $skip = -$skip;
  
  // Numbering logic
  for ($num = $starting, $i = 0; $i < $display; $i++, $num += $skip)
  {
    $numbering[] = $num;
  }
  
?>
  <table border="1" width="100%">
<?php
  
  // Rows
  for ($r = 0; $r < $rows; $r++)
  {
    
?>
    <tr>
<?php
    
    // Columns
    for ($c = 0; $c < $columns; $c++)
    {
      
?>
      <td><?php echo implode('<br />', $numbering); ?></td>
<?php
      
    }
    
?>
    </tr>
<?php
    
  }
  
?>
  </table>
<?php
  
}
  
?>
  
  </body>
</html>