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PHP

Count Digits in PHP

 In this tutorial I will wrote a program that uses PHP programming language to ask the user to give a number and then the program will count the number of digits in the given number.

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Program Listing

<html>
  <head> 
   <title> Count Digits in PHP </title>
  </head>
  <body> 
      <style type="text/css">
      
      body {
        font-family: arial;
            size: 12px;
      };

        </style>
    <?php
     $num_values = $_POST['num_val'];

 
   if(isset($_POST['submit'])) {
      
      $results = "<h4>The Number of Digits :" 
        .countDigits($num_values)."</h4>";
       
      }

 if(isset($_POST['clear'])) {
      $num_values = "";
      $results = "";
    }


function countDigits($num_val)
{
    $count = 0;
    while ($num_val != 0) 
    {
        $num_val = round($num_val / 10);
        $count=$count+1;
    }
    return $count;
}
 

?>

  <h2> Count Digits in PHP </h2>
  <p> Mr. Jake Rodriguez Pomperada,MAED-IT, MIT </p>
<form method="post">
   <p>Give a Number <input id="element" 
    type="numeric" name="num_val"
     value="<?php echo $num_values; ?>" autofocus required /></p>
      
<input type="submit" name="submit" 
   title="Click here to count the digits."
   value="Submit" />
   
    &nbsp;&nbsp;&nbsp;
    <input type="submit" name="clear" 
    title="Click here to clear the textbox."
    value="Clear" />
</form>

<?php
   echo $results;
?>
</body>
</html>

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