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Positive and Negative Number in PHP

  In this tutorial, I will show you how to write a program to ask the user to give a number and then the program will check if the given number in positive, zero, or negative number using  PHP programming language.

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<html>

  <head> 

   <title>Positive and Negative Number in PHP </title>

  </head>

  <body> 

      <style type="text/css">

      

      body {

        font-family: arial;

            size: 12px;

      };



        </style>

    <?php

 

     $num_values = $_POST['num_val'];



  function CheckNumber($x) {

    if ($x > 0)

      {$message = "The given number 

                 $x is a Positive number.";}

    if ($x == 0)

      {$message = "The given number 

                 $x is Zero.";}

    if ($x < 0)

      {$message = "The given number 

                 $x is a Negative number.";}

     return $message;

    }





   if(isset($_POST['submit'])) {

                  

      $results= CheckNumber($num_values);

       

      }



 if(isset($_POST['clear'])) {

      $num_values = "";

      $results = "";

    }

?>



  <h2> Positive and Negative Number in PHP </h2>

  <p> Mr. Jake Rodriguez Pomperada,MAED-IT, MIT </p>

<form method="post">

   <p>Give a Number <input 

    type="numeric" name="num_val"

     value="<?php echo $num_values; ?>" autofocus required /></p>

      

<input type="submit" name="submit" 

   title="Click here to compute the cube root. "

   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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